Windows Analysis Report
test2.dll

Overview

General Information

Sample Name: test2.dll
Original Sample Name: test2.bin
Analysis ID: 828211
MD5: 69a88f93c1ec9c8ecc66b7d19fb4a9aa
SHA1: 74dca80be03ab4dcc6bac81e794b6a02b56c4574
SHA256: c825d867fb0bf1ba55b89f4bb1c6db13020792ceb175e84fac5f72cfa161726f
Infos:

Detection

Ursnif
Score: 68
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Ursnif
Machine Learning detection for sample
Uses 32bit PE files
AV process strings found (often used to terminate AV products)
PE file does not import any functions
Antivirus or Machine Learning detection for unpacked file
One or more processes crash
Uses code obfuscation techniques (call, push, ret)
Checks if the current process is being debugged
Sample execution stops while process was sleeping (likely an evasion)
Creates a process in suspended mode (likely to inject code)

Classification

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: test2.dll Avira: detected
Multi AV Scanner detection for submitted file
Source: test2.dll Virustotal: Detection: 39% Perma Link
Machine Learning detection for sample
Source: test2.dll Joe Sandbox ML: detected
Antivirus or Machine Learning detection for unpacked file
Source: 0.2.loaddll32.exe.10000000.0.unpack Avira: Label: TR/Patched.Ren.Gen2
Source: 3.2.rundll32.exe.10000000.0.unpack Avira: Label: TR/Patched.Ren.Gen2
Uses 32bit PE files
Source: test2.dll Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE, DLL
Source: Amcache.hve.5.dr String found in binary or memory: http://upx.sf.net

Key, Mouse, Clipboard, Microphone and Screen Capturing
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Yara detected Ursnif
Source: Yara match File source: test2.dll, type: SAMPLE
Source: Yara match File source: 0.2.loaddll32.exe.10000000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.rundll32.exe.10000000.0.unpack, type: UNPACKEDPE

E-Banking Fraud
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Yara detected Ursnif
Source: Yara match File source: test2.dll, type: SAMPLE
Source: Yara match File source: 0.2.loaddll32.exe.10000000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.rundll32.exe.10000000.0.unpack, type: UNPACKEDPE
Uses 32bit PE files
Source: test2.dll Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE, DLL
PE file does not import any functions
Source: test2.dll Static PE information: No import functions for PE file found
One or more processes crash
Source: C:\Windows\SysWOW64\rundll32.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 712 -s 656
Source: test2.dll Virustotal: Detection: 39%
Source: test2.dll Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_OVER, IMAGE_SCN_LNK_REMOVE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_PROTECTED, IMAGE_SCN_NO_DEFER_SPEC_EXC, IMAGE_SCN_MEM_LOCKED, IMAGE_SCN_MEM_PRELOAD, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_128BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Windows\System32\loaddll32.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\test2.dll",#1
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\test2.dll"
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\test2.dll",#1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\test2.dll",#1
Source: C:\Windows\SysWOW64\rundll32.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 712 -s 656
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\test2.dll",#1 Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\test2.dll",#1 Jump to behavior
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:788:120:WilError_01
Source: C:\Windows\SysWOW64\WerFault.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess712
Source: C:\Windows\SysWOW64\WerFault.exe File created: C:\ProgramData\Microsoft\Windows\WER\Temp\WER5DBB.tmp Jump to behavior
Source: classification engine Classification label: mal68.troj.winDLL@7/6@0/0
Source: C:\Windows\SysWOW64\WerFault.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Uses code obfuscation techniques (call, push, ret)
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 3_2_032610A4 pushad ; retf 3_2_032610A5
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 3_2_0325DBB9 pushad ; iretd 3_2_0325DBC1
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 3_2_0325CFC8 pushad ; iretd 3_2_0325D015

Hooking and other Techniques for Hiding and Protection
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Yara detected Ursnif
Source: Yara match File source: test2.dll, type: SAMPLE
Source: Yara match File source: 0.2.loaddll32.exe.10000000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.rundll32.exe.10000000.0.unpack, type: UNPACKEDPE
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: Amcache.hve.5.dr Binary or memory string: VMware
Source: Amcache.hve.5.dr Binary or memory string: scsi/disk&ven_vmware&prod_virtual_disk/5&1ec51bf7&0&000000
Source: Amcache.hve.5.dr Binary or memory string: VMware-42 35 34 13 2a 07 0a 9c-ee 7f dd c3 60 c7 b9 af
Source: Amcache.hve.5.dr Binary or memory string: @scsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/5&280b647&0&000000
Source: Amcache.hve.5.dr Binary or memory string: VMware Virtual USB Mouse
Source: Amcache.hve.5.dr Binary or memory string: VMware, Inc.
Source: Amcache.hve.5.dr Binary or memory string: VMware Virtual disk SCSI Disk Devicehbin
Source: Amcache.hve.5.dr Binary or memory string: Microsoft Hyper-V Generation Counter
Source: Amcache.hve.5.dr Binary or memory string: VMware7,1
Source: Amcache.hve.5.dr Binary or memory string: NECVMWar VMware SATA CD00
Source: Amcache.hve.5.dr Binary or memory string: VMware Virtual disk SCSI Disk Device
Source: Amcache.hve.5.dr Binary or memory string: scsi\cdromnecvmwarvmware_sata_cd001.00,scsi\cdromnecvmwarvmware_sata_cd00,scsi\cdromnecvmwar,scsi\necvmwarvmware_sata_cd001,necvmwarvmware_sata_cd001,gencdrom
Source: Amcache.hve.5.dr Binary or memory string: scsi\diskvmware__virtual_disk____2.0_,scsi\diskvmware__virtual_disk____,scsi\diskvmware__,scsi\vmware__virtual_disk____2,vmware__virtual_disk____2,gendisk
Source: Amcache.hve.5.dr Binary or memory string: VMware, Inc.me
Source: Amcache.hve.5.dr Binary or memory string: scsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/5&280b647&0&000000
Source: Amcache.hve.5.dr Binary or memory string: BiosVendor:VMware, Inc.,BiosVersion:VMW71.00V.18227214.B64.2106252220,BiosReleaseDate:06/25/2021,BiosMajorRelease:0xff,BiosMinorRelease:0xff,SystemManufacturer:VMware, Inc.,SystemProduct:VMware7,1,SystemFamily:,SystemSKUNumber:,BaseboardManufacturer:,BaseboardProduct:,BaseboardVersion:,EnclosureType:0x1
Source: Amcache.hve.5.dr Binary or memory string: :scsi/disk&ven_vmware&prod_virtual_disk/5&1ec51bf7&0&000000
Checks if the current process is being debugged
Source: C:\Windows\System32\loaddll32.exe Process queried: DebugPort Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process queried: DebugPort Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process queried: DebugPort Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\test2.dll",#1 Jump to behavior
AV process strings found (often used to terminate AV products)
Source: Amcache.hve.5.dr Binary or memory string: c:\program files\windows defender\msmpeng.exe

Stealing of Sensitive Information
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Yara detected Ursnif
Source: Yara match File source: test2.dll, type: SAMPLE
Source: Yara match File source: 0.2.loaddll32.exe.10000000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.rundll32.exe.10000000.0.unpack, type: UNPACKEDPE

Remote Access Functionality
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Yara detected Ursnif
Source: Yara match File source: test2.dll, type: SAMPLE
Source: Yara match File source: 0.2.loaddll32.exe.10000000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.rundll32.exe.10000000.0.unpack, type: UNPACKEDPE
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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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 828211 Sample: test2.dll Startdate: 16/03/2023 Architecture: WINDOWS Score: 68 18 Antivirus / Scanner detection for submitted sample 2->18 20 Multi AV Scanner detection for submitted file 2->20 22 Yara detected  Ursnif 2->22 24 Machine Learning detection for sample 2->24 8 loaddll32.exe 1 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 conhost.exe 8->12         started        process5 14 rundll32.exe 10->14         started        process6 16 WerFault.exe 23 9 14->16         started       
⊘No contacted IP infos