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Analysis Report 606e7fb752fbd.rar.dll

Overview

General Information

Sample Name:	606e7fb752fbd.rar.dll
Analysis ID:	383661
MD5:	8bf44d2b3b9b7c0fa2754fbe6ad14a63
SHA1:	76d4ed4512d34edd5a34b917957654fedbfae23f
SHA256:	cb7c95db9ce05d2304a4a98687a4b92f85081e1b7397820a52487b277ee1f2e1
Tags:	BRTdllgeogoziisfbITAursnif
Infos:
Most interesting Screenshot:

Detection

Ursnif

Score:	56
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Found malware configuration

Yara detected Ursnif

Contains functionality to call native functions

Contains functionality to check if a debugger is running (IsDebuggerPresent)

Contains functionality to dynamically determine API calls

Contains functionality to query CPU information (cpuid)

Contains functionality to query locales information (e.g. system language)

Contains functionality to read the PEB

Creates a process in suspended mode (likely to inject code)

Detected potential crypto function

Found potential string decryption / allocating functions

PE file contains an invalid checksum

Program does not show much activity (idle)

Sample execution stops while process was sleeping (likely an evasion)

Sample file is different than original file name gathered from version info

Uses 32bit PE files

Uses code obfuscation techniques (call, push, ret)

Classification

Startup

System is w10x64

loaddll32.exe (PID: 6444 cmdline: loaddll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll' MD5: 542795ADF7CC08EFCF675D65310596E8)

cmd.exe (PID: 6456 cmdline: cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1 MD5: F3BDBE3BB6F734E357235F4D5898582D)

rundll32.exe (PID: 6476 cmdline: rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1 MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

rundll32.exe (PID: 6464 cmdline: rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Choosethan MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

rundll32.exe (PID: 6516 cmdline: rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Especiallyyes MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

rundll32.exe (PID: 6532 cmdline: rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Guesscover MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

rundll32.exe (PID: 6552 cmdline: rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Learncut MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

rundll32.exe (PID: 6596 cmdline: rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,OnceOut MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

cleanup

Malware Configuration

Threatname: Ursnif

[{"RSA Public Key": "YKwVOU5rJLi0k2wc/Sa//orn/I3K6zI6HgJKpraE6XyxxZAjZUdVyZ9IFso22JAAB2G4qzzp3TU2DJqhIyPO7xVeI9l7K9H9VlKfzYozAbxBQCrtZPEdPyCguw2FwPnt3aL3viJmXn26e8PXSevTHzQdNxMCe42eyfgYxlDVzbkJTLhI91j/G+/dxO1/TdYY"}, {"c2_domain": ["ocsp2.digicert.com", "aus6.mozilla.org", "durenoluneer.xyz", "surenoluneer.xyz"], "botnet": "8877", "server": "12", "serpent_key": "30218409ILPAJDUR", "sleep_time": "10", "SetWaitableTimer_value": "0", "DGA_count": "10"}]

Yara Overview

Memory Dumps

Source	Rule	Description	Author
00000003.00000003.874026586.0000000000EC0000.00000040.00000001.sdmp	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
00000002.00000003.873095643.0000000000F10000.00000040.00000001.sdmp	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
00000004.00000003.890597997.0000000000C50000.00000040.00000001.sdmp	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security

Unpacked PEs

Source	Rule	Description	Author
4.3.rundll32.exe.c5a4b1.0.raw.unpack	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
4.2.rundll32.exe.6d450000.3.unpack	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
5.2.rundll32.exe.6d450000.1.unpack	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
2.3.rundll32.exe.f1a4b1.0.raw.unpack	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
3.3.rundll32.exe.eca4b1.0.raw.unpack	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
3.2.rundll32.exe.6d450000.1.unpack	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
2.2.rundll32.exe.6d450000.2.unpack	JoeSecurity_Ursnif_1	Yara detected Ursnif	Joe Security
Click to see the 2 entries

Sigma Overview

No Sigma rule has matched

Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Found malware configuration

Show sources

Source: 4.2.rundll32.exe.4cc94a0.2.raw.unpack

Malware Configuration Extractor: Ursnif [{"RSA Public Key": "YKwVOU5rJLi0k2wc/Sa//orn/I3K6zI6HgJKpraE6XyxxZAjZUdVyZ9IFso22JAAB2G4qzzp3TU2DJqhIyPO7xVeI9l7K9H9VlKfzYozAbxBQCrtZPEdPyCguw2FwPnt3aL3viJmXn26e8PXSevTHzQdNxMCe42eyfgYxlDVzbkJTLhI91j/G+/dxO1/TdYY"}, {"c2_domain": ["ocsp2.digicert.com", "aus6.mozilla.org", "durenoluneer.xyz", "surenoluneer.xyz"], "botnet": "8877", "server": "12", "serpent_key": "30218409ILPAJDUR", "sleep_time": "10", "SetWaitableTimer_value": "0", "DGA_count": "10"}]

Source: 606e7fb752fbd.rar.dll

Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL

Source: 606e7fb752fbd.rar.dll

Static PE information: DYNAMIC_BASE, NX_COMPAT

Source:

Binary string: c:\hot\905_grow\310_Together\Brought.pdb source: loaddll32.exe, 00000000.00000002.901043048.000000006D500000.00000002.00020000.sdmp, rundll32.exe, 00000002.00000002.908140362.000000006D500000.00000002.00020000.sdmp, rundll32.exe, 00000003.00000002.901888879.000000006D500000.00000002.00020000.sdmp, rundll32.exe, 00000004.00000002.908539337.000000006D500000.00000002.00020000.sdmp, rundll32.exe, 00000005.00000002.910191671.000000006D500000.00000002.00020000.sdmp, rundll32.exe, 00000006.00000002.901492823.000000006D500000.00000002.00020000.sdmp, rundll32.exe, 00000009.00000002.901601437.000000006D500000.00000002.00020000.sdmp, 606e7fb752fbd.rar.dll

Key, Mouse, Clipboard, Microphone and Screen Capturing:

Yara detected Ursnif

Show sources

Source: Yara match	File source: 00000003.00000003.874026586.0000000000EC0000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000002.00000003.873095643.0000000000F10000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000003.890597997.0000000000C50000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 4.3.rundll32.exe.c5a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.rundll32.exe.6d450000.3.unpack, type: UNPACKEDPE
Source: Yara match	File source: 5.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.3.rundll32.exe.f1a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.3.rundll32.exe.eca4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.2.rundll32.exe.6d450000.2.unpack, type: UNPACKEDPE

E-Banking Fraud:

Yara detected Ursnif

Show sources

Source: Yara match	File source: 00000003.00000003.874026586.0000000000EC0000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000002.00000003.873095643.0000000000F10000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000003.890597997.0000000000C50000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 4.3.rundll32.exe.c5a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.rundll32.exe.6d450000.3.unpack, type: UNPACKEDPE
Source: Yara match	File source: 5.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.3.rundll32.exe.f1a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.3.rundll32.exe.eca4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.2.rundll32.exe.6d450000.2.unpack, type: UNPACKEDPE

Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D452375 NtQueryVirtualMemory,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D452375 NtQueryVirtualMemory,

Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D494D40
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D492FAD
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4C6EC9
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4A6B40
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D456B50
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4C3507
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4695D0
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D465590
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4B05A8
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4641B0
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4BA02F
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4D00FC
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D452154
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D494D40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4C3507
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D492FAD
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4641B0
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4BA02F
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4A6B40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D452154
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D494D40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4C3507
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D492FAD
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4641B0
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4BA02F
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4A6B40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D494D40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D4C3507
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D492FAD
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D4641B0
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D4BA02F
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D4A6B40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D494D40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4C3507
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4A4C5F
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D492FAD
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4641B0
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4BA02F
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4A6B40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D494D40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D492FAD
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4C6EC9
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4A6B40
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D456B50
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4C3507
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4695D0
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D465590
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4B05A8
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4641B0
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4BA02F
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4D00FC

Source: C:\Windows\System32\loaddll32.exe	Code function: String function: 6D490E9E appears 83 times
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: String function: 6D490ED2 appears 44 times
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: String function: 6D491790 appears 123 times
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: String function: 6D490E9E appears 407 times
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: String function: 6D4B491D appears 55 times
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: String function: 6D4B4776 appears 74 times
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: String function: 6D490F09 appears 35 times

Source: 606e7fb752fbd.rar.dll

Binary or memory string: OriginalFilenameBrought.dll. vs 606e7fb752fbd.rar.dll

Source: 606e7fb752fbd.rar.dll

Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL

Source: classification engine

Classification label: mal56.troj.winDLL@15/0@0/0

Source: 606e7fb752fbd.rar.dll

Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ

Source: C:\Windows\System32\loaddll32.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: C:\Windows\System32\loaddll32.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Choosethan

Source: unknown	Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll'
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Choosethan
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Especiallyyes
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Guesscover
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Learncut
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,OnceOut
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Choosethan
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Especiallyyes
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Guesscover
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Learncut
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,OnceOut
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1

Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK

Source: 606e7fb752fbd.rar.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IMPORT
Source: 606e7fb752fbd.rar.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_RESOURCE
Source: 606e7fb752fbd.rar.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_BASERELOC
Source: 606e7fb752fbd.rar.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: 606e7fb752fbd.rar.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
Source: 606e7fb752fbd.rar.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IAT

Source: 606e7fb752fbd.rar.dll

Static PE information: DYNAMIC_BASE, NX_COMPAT

Source: 606e7fb752fbd.rar.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:

Source: 606e7fb752fbd.rar.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: 606e7fb752fbd.rar.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: 606e7fb752fbd.rar.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: 606e7fb752fbd.rar.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: 606e7fb752fbd.rar.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .rdata

Source: C:\Windows\SysWOW64\rundll32.exe

Code function: 2_2_6D451745 LoadLibraryA,GetProcAddress,

Source: 606e7fb752fbd.rar.dll

Static PE information: real checksum: 0xfd487 should be: 0xff097

Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D490E67 push ecx; ret
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4917D6 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D452143 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4520F0 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4917D6 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D490E67 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D452143 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4520F0 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4917D6 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D490E67 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D4917D6 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D490E67 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4917D6 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D490E67 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D490E67 push ecx; ret
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4917D6 push ecx; ret

Hooking and other Techniques for Hiding and Protection:

Yara detected Ursnif

Show sources

Source: Yara match	File source: 00000003.00000003.874026586.0000000000EC0000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000002.00000003.873095643.0000000000F10000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000003.890597997.0000000000C50000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 4.3.rundll32.exe.c5a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.rundll32.exe.6d450000.3.unpack, type: UNPACKEDPE
Source: Yara match	File source: 5.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.3.rundll32.exe.f1a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.3.rundll32.exe.eca4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.2.rundll32.exe.6d450000.2.unpack, type: UNPACKEDPE

Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\loaddll32.exe	Last function: Thread delayed
Source: C:\Windows\SysWOW64\rundll32.exe	Last function: Thread delayed
Source: C:\Windows\SysWOW64\rundll32.exe	Last function: Thread delayed
Source: C:\Windows\SysWOW64\rundll32.exe	Last function: Thread delayed
Source: C:\Windows\SysWOW64\rundll32.exe	Last function: Thread delayed
Source: C:\Windows\SysWOW64\rundll32.exe	Last function: Thread delayed
Source: C:\Windows\SysWOW64\rundll32.exe	Last function: Thread delayed

Source: C:\Windows\System32\loaddll32.exe

Code function: 0_2_6D4B3EDA IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,

Source: C:\Windows\SysWOW64\rundll32.exe

Code function: 2_2_6D451745 LoadLibraryA,GetProcAddress,

Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4BAD71 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4BAD71 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D541746 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D54167C mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D541283 push dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4BAD71 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D541746 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D54167C mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D541283 push dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D4BAD71 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D541746 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D54167C mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D541283 push dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4BAD71 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4BAD71 mov eax, dword ptr fs:[00000030h]

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D4B3EDA IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D491078 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,
Source: C:\Windows\System32\loaddll32.exe	Code function: 0_2_6D49138C IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D4B3EDA IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 2_2_6D491078 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D4B3EDA IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 3_2_6D491078 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D4B3EDA IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 4_2_6D491078 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D4B3EDA IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 5_2_6D491078 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D4B3EDA IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D491078 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 6_2_6D49138C IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,

Source: C:\Windows\SysWOW64\cmd.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1

Source: loaddll32.exe, 00000000.00000002.900668496.0000000000BA0000.00000002.00000001.sdmp, rundll32.exe, 00000002.00000002.901484262.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.901496797.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.901571033.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.901722448.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.901100477.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.901151375.0000000003600000.00000002.00000001.sdmp	Binary or memory string: Program Manager
Source: loaddll32.exe, 00000000.00000002.900668496.0000000000BA0000.00000002.00000001.sdmp, rundll32.exe, 00000002.00000002.901484262.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.901496797.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.901571033.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.901722448.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.901100477.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.901151375.0000000003600000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: loaddll32.exe, 00000000.00000002.900668496.0000000000BA0000.00000002.00000001.sdmp, rundll32.exe, 00000002.00000002.901484262.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.901496797.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.901571033.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.901722448.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.901100477.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.901151375.0000000003600000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: loaddll32.exe, 00000000.00000002.900668496.0000000000BA0000.00000002.00000001.sdmp, rundll32.exe, 00000002.00000002.901484262.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.901496797.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000004.00000002.901571033.00000000033A0000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.901722448.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.901100477.0000000003010000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.901151375.0000000003600000.00000002.00000001.sdmp	Binary or memory string: Progmanlock

Source: C:\Windows\System32\loaddll32.exe

Code function: 0_2_6D4906EF cpuid

Source: C:\Windows\System32\loaddll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\System32\loaddll32.exe	Code function: ___crtGetLocaleInfoEx,
Source: C:\Windows\System32\loaddll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\System32\loaddll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: IsValidCodePage,_wcschr,_wcschr,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,GetLocaleInfoW,GetACP,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetUserDefaultLCID,IsValidCodePage,IsValidLocale,GetLocaleInfoW,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: ___crtGetLocaleInfoEx,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: IsValidCodePage,_wcschr,_wcschr,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,GetLocaleInfoW,GetACP,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetUserDefaultLCID,IsValidCodePage,IsValidLocale,GetLocaleInfoW,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: ___crtGetLocaleInfoEx,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: IsValidCodePage,_wcschr,_wcschr,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,GetLocaleInfoW,GetACP,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetUserDefaultLCID,IsValidCodePage,IsValidLocale,GetLocaleInfoW,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: ___crtGetLocaleInfoEx,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: IsValidCodePage,_wcschr,_wcschr,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,GetLocaleInfoW,GetACP,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetUserDefaultLCID,IsValidCodePage,IsValidLocale,GetLocaleInfoW,GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: ___crtGetLocaleInfoEx,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: ___crtGetLocaleInfoEx,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: GetLocaleInfoW,

Source: C:\Windows\System32\loaddll32.exe

Code function: 0_2_6D47B218 GetSystemTimeAsFileTime,

Source: C:\Windows\System32\loaddll32.exe

Code function: 0_2_6D4C8870 _free,_free,_free,GetTimeZoneInformation,WideCharToMultiByte,WideCharToMultiByte,_free,

Source: C:\Windows\SysWOW64\rundll32.exe

Code function: 2_2_6D451850 CreateEventA,GetVersion,GetCurrentProcessId,OpenProcess,GetLastError,

Stealing of Sensitive Information:

Yara detected Ursnif

Show sources

Source: Yara match	File source: 00000003.00000003.874026586.0000000000EC0000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000002.00000003.873095643.0000000000F10000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000003.890597997.0000000000C50000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 4.3.rundll32.exe.c5a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.rundll32.exe.6d450000.3.unpack, type: UNPACKEDPE
Source: Yara match	File source: 5.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.3.rundll32.exe.f1a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.3.rundll32.exe.eca4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.2.rundll32.exe.6d450000.2.unpack, type: UNPACKEDPE

Remote Access Functionality:

Yara detected Ursnif

Show sources

Source: Yara match	File source: 00000003.00000003.874026586.0000000000EC0000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000002.00000003.873095643.0000000000F10000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000003.890597997.0000000000C50000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: 4.3.rundll32.exe.c5a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.rundll32.exe.6d450000.3.unpack, type: UNPACKEDPE
Source: Yara match	File source: 5.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.3.rundll32.exe.f1a4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.3.rundll32.exe.eca4b1.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 3.2.rundll32.exe.6d450000.1.unpack, type: UNPACKEDPE
Source: Yara match	File source: 2.2.rundll32.exe.6d450000.2.unpack, type: UNPACKEDPE

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Native API1	Path Interception	Process Injection12	Rundll321	OS Credential Dumping	System Time Discovery2	Remote Services	Archive Collected Data1	Exfiltration Over Other Network Medium	Encrypted Channel1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Process Injection12	LSASS Memory	Security Software Discovery1	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Deobfuscate/Decode Files or Information1	Security Account Manager	Process Discovery1	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	Logon Script (Mac)	Obfuscated Files or Information2	NTDS	System Information Discovery23	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
606e7fb752fbd.rar.dll	6%	ReversingLabs	Win32.Trojan.Ursnif

Dropped Files

No Antivirus matches

Unpacked PE Files

Source	Detection	Scanner	Label	Link	Download
4.2.rundll32.exe.d10000.1.unpack	100%	Avira	HEUR/AGEN.1108168		Download File

Domains

No Antivirus matches

URLs

No Antivirus matches

Domains and IPs

Contacted Domains

No contacted domains info

Contacted IPs

No contacted IP infos

General Information

Joe Sandbox Version:	31.0.0 Emerald
Analysis ID:	383661
Start date:	08.04.2021
Start time:	06:02:11
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 10m 19s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	606e7fb752fbd.rar.dll
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	12
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal56.troj.winDLL@15/0@0/0
EGA Information:	Failed
HDC Information:	Successful, ratio: 9% (good quality ratio 8.5%) Quality average: 71.3% Quality standard deviation: 26.8%
HCA Information:	Failed
Cookbook Comments:	Adjust boot time Enable AMSI Found application associated with file extension: .dll
Warnings:	Show All Exclude process from analysis (whitelisted): taskhostw.exe, RuntimeBroker.exe, backgroundTaskHost.exe, UsoClient.exe Report creation exceeded maximum time and may have missing disassembly code information.

Simulations

Behavior and APIs

No simulations

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

No context

JA3 Fingerprints

No context

Dropped Files

No context

Created / dropped Files

No created / dropped files found

Static File Info

General
File type:	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Entropy (8bit):	6.562725713508687
TrID:	Win32 Dynamic Link Library (generic) (1002004/3) 99.40% Generic Win/DOS Executable (2004/3) 0.20% DOS Executable Generic (2002/1) 0.20% Disk Image (Macintosh), GPT (2000/0) 0.20% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	606e7fb752fbd.rar.dll
File size:	1007104
MD5:	8bf44d2b3b9b7c0fa2754fbe6ad14a63
SHA1:	76d4ed4512d34edd5a34b917957654fedbfae23f
SHA256:	cb7c95db9ce05d2304a4a98687a4b92f85081e1b7397820a52487b277ee1f2e1
SHA512:	58d7912fb2486ee944cda295f80293bed6f207631fd79611a64e350f60bc6ff662fc9f66a1e57fefbe9998d081b6f92807ed7ca85dafaa7a313ff7047decede8
SSDEEP:	24576:lLtF9jICeGoQ8T1Mk7Hv/3+MM9hbAK0uf:/FpPeGovT1t33+p9hbAK0uf
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$......."6..fW..fW..fW....l.kW....n..W....o.{W..4?..pW..4?..PW..4?..yW..o/..oW..fW...W...>..gW...>..gW...>b.gW...>..gW..RichfW.........

File Icon


Icon Hash:	74f0e4ecccdce0e4

Static PE Info

General
Entrypoint:	0x1040e44
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x1000000
Subsystem:	windows gui
Image File Characteristics:	32BIT_MACHINE, EXECUTABLE_IMAGE, DLL
DLL Characteristics:	DYNAMIC_BASE, NX_COMPAT
Time Stamp:	0x5AC0F310 [Sun Apr 1 14:56:16 2018 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	6
OS Version Minor:	0
File Version Major:	6
File Version Minor:	0
Subsystem Version Major:	6
Subsystem Version Minor:	0
Import Hash:	935187af3562f5148cd8683f99f748de

Entrypoint Preview

Instruction
push ebp
mov ebp, esp
cmp dword ptr [ebp+0Ch], 01h
jne 00007FB32D027867h
call 00007FB32D02824Bh
push dword ptr [ebp+10h]
push dword ptr [ebp+0Ch]
push dword ptr [ebp+08h]
call 00007FB32D02770Fh
add esp, 0Ch
pop ebp
retn 000Ch
mov ecx, dword ptr [ebp-0Ch]
mov dword ptr fs:[00000000h], ecx
pop ecx
pop edi
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
push ecx
ret
mov ecx, dword ptr [ebp-10h]
xor ecx, ebp
call 00007FB32D026DC2h
jmp 00007FB32D027840h
mov ecx, dword ptr [ebp-14h]
xor ecx, ebp
call 00007FB32D026DB1h
jmp 00007FB32D02782Fh
push eax
push dword ptr fs:[00000000h]
lea eax, dword ptr [esp+0Ch]
sub esp, dword ptr [esp+0Ch]
push ebx
push esi
push edi
mov dword ptr [eax], ebp
mov ebp, eax
mov eax, dword ptr [010E4074h]
xor eax, ebp
push eax
push dword ptr [ebp-04h]
mov dword ptr [ebp-04h], FFFFFFFFh
lea eax, dword ptr [ebp-0Ch]
mov dword ptr fs:[00000000h], eax
ret
push eax
push dword ptr fs:[00000000h]
lea eax, dword ptr [esp+0Ch]
sub esp, dword ptr [esp+0Ch]
push ebx
push esi
push edi
mov dword ptr [eax], ebp
mov ebp, eax
mov eax, dword ptr [010E4074h]
xor eax, ebp
push eax
mov dword ptr [ebp-10h], eax
push dword ptr [ebp-04h]
mov dword ptr [ebp-04h], FFFFFFFFh
lea eax, dword ptr [ebp-0Ch]
mov dword ptr fs:[00000000h], eax
ret
push eax
inc dword ptr fs:[eax]

Rich Headers

Programming Language:

[IMP] VS2008 SP1 build 30729

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0xe2c40	0x9c	.rdata
IMAGE_DIRECTORY_ENTRY_IMPORT	0xe2cdc	0x64	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x10b000	0x528	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x10c000	0x703c	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0xd8cf0	0x54	.rdata
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0xd8de8	0x18	.rdata
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0xd8d48	0x40	.rdata
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0xb0000	0x1e8	.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0xaef21	0xaf000	False	0.524893973214	data	6.69988661327	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.rdata	0xb0000	0x33798	0x33800	False	0.528073801578	data	5.1051416342	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0xe4000	0x26b60	0xba00	False	0.562668010753	data	4.83370710676	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.rsrc	0x10b000	0x528	0x600	False	0.412109375	data	3.76195156474	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x10c000	0x703c	0x7200	False	0.694421600877	data	6.654304142	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_VERSION	0x10b0a0	0x304	data	English	United States
RT_MANIFEST	0x10b3a8	0x17d	XML 1.0 document text	English	United States

Imports

DLL	Import
KERNEL32.dll	GetShortPathNameA, WaitForMultipleObjects, GetEnvironmentVariableA, Sleep, GetTempPathA, CopyFileA, GetFileAttributesA, GetSystemDirectoryA, GetWindowsDirectoryA, VirtualProtectEx, CreateProcessA, CreateSemaphoreA, OutputDebugStringW, OutputDebugStringA, SetEndOfFile, HeapSize, WriteConsoleW, SetStdHandle, CreateFileW, GetProcessHeap, SetEnvironmentVariableW, SetEnvironmentVariableA, FreeEnvironmentStringsW, GetEnvironmentStringsW, GetCommandLineW, GetCommandLineA, GetOEMCP, IsValidCodePage, MultiByteToWideChar, GetLastError, FormatMessageW, WideCharToMultiByte, GetStringTypeW, EnterCriticalSection, LeaveCriticalSection, DeleteCriticalSection, SetLastError, InitializeCriticalSectionAndSpinCount, CreateEventW, SwitchToThread, TlsAlloc, TlsGetValue, TlsSetValue, TlsFree, GetSystemTimeAsFileTime, GetTickCount, GetModuleHandleW, GetProcAddress, EncodePointer, DecodePointer, GetCPInfo, CompareStringW, LCMapStringW, GetLocaleInfoW, CloseHandle, SetEvent, ResetEvent, WaitForSingleObjectEx, UnhandledExceptionFilter, SetUnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, IsProcessorFeaturePresent, IsDebuggerPresent, GetStartupInfoW, QueryPerformanceCounter, GetCurrentProcessId, GetCurrentThreadId, InitializeSListHead, RtlUnwind, RaiseException, InterlockedPushEntrySList, InterlockedFlushSList, FreeLibrary, LoadLibraryExW, ExitProcess, GetModuleHandleExW, GetModuleFileNameA, GetModuleFileNameW, GetCurrentThread, GetACP, HeapAlloc, GetStdHandle, GetFileType, HeapFree, HeapReAlloc, ReadFile, SetFilePointerEx, WriteFile, GetConsoleCP, GetConsoleMode, GetDateFormatW, GetTimeFormatW, IsValidLocale, GetUserDefaultLCID, EnumSystemLocalesW, FlushFileBuffers, ReadConsoleW, SetConsoleCtrlHandler, GetTimeZoneInformation, FindClose, FindFirstFileExA, FindFirstFileExW, FindNextFileA, FindNextFileW, CreateThread
ole32.dll	CoTaskMemAlloc, CoInitialize, CoUninitialize, CoTaskMemFree
WS2_32.dll	getprotobynumber, WSAStartup, getservbyport, WSACleanup, setsockopt, socket
RASAPI32.dll	RasEnumConnectionsA, RasGetConnectStatusA

Exports

Name	Ordinal	Address
Choosethan	1	0x1086ad0
Especiallyyes	2	0x10865e0
Guesscover	3	0x1086ff0
Learncut	4	0x1088240
OnceOut	5	0x1087600

Version Infos

Description	Data
LegalCopyright	Copyright 1998-2014 Had Home, Inc
InternalName	Serve color
FileVersion	6.7.0.400
CompanyName	Had Home
ProductName	Had Home
Think beat	FreeHere
FileDescription	Serve color
OriginalFilename	Brought.dll
ProductVersion	6.7.0.400
Translation	0x0409 0x04b0

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Network Behavior

No network behavior found

Code Manipulations

Statistics

Behavior

Click to jump to process

System Behavior

Analysis Process: loaddll32.exe PID: 6444 Parent PID: 6060

General

Start time:	06:02:53
Start date:	08/04/2021
Path:	C:\Windows\System32\loaddll32.exe
Wow64 process (32bit):	true
Commandline:	loaddll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll'
Imagebase:	0x360000
File size:	116736 bytes
MD5 hash:	542795ADF7CC08EFCF675D65310596E8
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	moderate

Analysis Process: cmd.exe PID: 6456 Parent PID: 6444

General

Start time:	06:02:53
Start date:	08/04/2021
Path:	C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):	true
Commandline:	cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1
Imagebase:	0x11d0000
File size:	232960 bytes
MD5 hash:	F3BDBE3BB6F734E357235F4D5898582D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Analysis Process: rundll32.exe PID: 6464 Parent PID: 6444

General

Start time:	06:02:54
Start date:	08/04/2021
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Choosethan
Imagebase:	0xff0000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_Ursnif_1, Description: Yara detected Ursnif, Source: 00000002.00000003.873095643.0000000000F10000.00000040.00000001.sdmp, Author: Joe Security
Reputation:	high

Analysis Process: rundll32.exe PID: 6476 Parent PID: 6456

General

Start time:	06:02:54
Start date:	08/04/2021
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe 'C:\Users\user\Desktop\606e7fb752fbd.rar.dll',#1
Imagebase:	0xff0000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_Ursnif_1, Description: Yara detected Ursnif, Source: 00000003.00000003.874026586.0000000000EC0000.00000040.00000001.sdmp, Author: Joe Security
Reputation:	high

Analysis Process: rundll32.exe PID: 6516 Parent PID: 6444

General

Start time:	06:02:57
Start date:	08/04/2021
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Especiallyyes
Imagebase:	0xff0000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_Ursnif_1, Description: Yara detected Ursnif, Source: 00000004.00000003.890597997.0000000000C50000.00000040.00000001.sdmp, Author: Joe Security
Reputation:	high

Analysis Process: rundll32.exe PID: 6532 Parent PID: 6444

General

Start time:	06:03:01
Start date:	08/04/2021
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Guesscover
Imagebase:	0xff0000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Analysis Process: rundll32.exe PID: 6552 Parent PID: 6444

General

Start time:	06:03:05
Start date:	08/04/2021
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,Learncut
Imagebase:	0xff0000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Analysis Process: rundll32.exe PID: 6596 Parent PID: 6444

General

Start time:	06:03:11
Start date:	08/04/2021
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe C:\Users\user\Desktop\606e7fb752fbd.rar.dll,OnceOut
Imagebase:	0xff0000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Disassembly

Code Analysis

Reset < >

Description:	Adversaries may directly interact with the native OS application programming interface (API) to execute behaviors. Native APIs provide a controlled means of calling low-level OS services within the kernel, such as those involving hardware/devices, memory, and processes.These native APIs are leveraged by the OS during system boot (when other system components are not yet initialized) as well as carrying out tasks and requests during routine operations.
Tactics:	Execution
Data Sources:	API monitoring, Loaded DLLs, Process monitoring, System calls
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse rundll32.exe to proxy execution of malicious code. Using rundll32.exe, vice executing directly (i.e. Shared Modules ), may avoid triggering security tools that may not monitor execution of the rundll32.exe process because of allowlists or false positives from normal operations. Rundll32.exe is commonly associated with executing DLL payloads.
Tactics:	Defense Evasion
Data Sources:	DLL monitoring, Loaded DLLs, Process command-line parameters, Process monitoring
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use Obfuscated Files or Information to hide artifacts of an intrusion from analysis. They may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it. Methods for doing that include built-in functionality of malware or by using utilities present on the system.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may gather the system time and/or time zone from a local or remote system. The system time is set and stored by the Windows Time Service within a domain to maintain time synchronization between systems and services in an enterprise network.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Analysis Report 606e7fb752fbd.rar.dll

Overview

General Information

Detection

Signatures

Classification

Startup

Malware Configuration

Threatname: Ursnif

Yara Overview

Memory Dumps

Unpacked PEs

Sigma Overview

Signature Overview

AV Detection:

Compliance:

Key, Mouse, Clipboard, Microphone and Screen Capturing:

E-Banking Fraud:

System Summary:

Data Obfuscation:

Hooking and other Techniques for Hiding and Protection:

Malware Analysis System Evasion:

Anti Debugging:

HIPS / PFW / Operating System Protection Evasion:

Language, Device and Operating System Detection:

Stealing of Sensitive Information:

Remote Access Functionality:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted IPs

General Information

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Rich Headers

Data Directories

Sections

Resources

Imports

Exports

Version Infos

Possible Origin

Network Behavior

Code Manipulations

Statistics

Behavior

System Behavior

Analysis Process: loaddll32.exe PID: 6444 Parent PID: 6060

General

Analysis Process: cmd.exe PID: 6456 Parent PID: 6444

General