Analysis Report c2b6efb1_by_Libranalysis

Overview

General Information

Sample Name: c2b6efb1_by_Libranalysis (renamed file extension from none to dll)
Analysis ID: 413035
MD5: c2b6efb1b15eab83bcec9afd875fbb34
SHA1: fab251bf2316a77c53f3b92ad016ed9697f4f14a
SHA256: 2626744dae64045e445cbab9a2a225827d362ef6a0c20efa56b67dcec779857e
Infos:

Most interesting Screenshot:

Detection

Dridex
Score: 72
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected Dridex unpacked file
C2 URLs / IPs found in malware configuration
Machine Learning detection for sample
Checks if the current process is being debugged
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to query locales information (e.g. system language)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
One or more processes crash
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)

Classification

AV Detection:

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Found malware configuration
Source: 2.2.rundll32.exe.10000000.3.unpack Malware Configuration Extractor: Dridex {"Version": 22201, "C2 list": ["43.229.206.212:443", "82.209.17.209:8172", "162.241.209.225:4125"], "RC4 keys": ["16dkGStOzdHgjuCciXGdSX7UrHWfYSUG8wEUtKNgzHrWMfTGafJbC", "39t3NdDhurvpltFNCpvA5goSylkxjIBtIwWPTv1DPbNEcuIekQC7O"]}
Multi AV Scanner detection for submitted file
Source: c2b6efb1_by_Libranalysis.dll ReversingLabs: Detection: 30%
Machine Learning detection for sample
Source: c2b6efb1_by_Libranalysis.dll Joe Sandbox ML: detected

Compliance:

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Uses 32bit PE files
Source: c2b6efb1_by_Libranalysis.dll Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL
Source: c2b6efb1_by_Libranalysis.dll Static PE information: DYNAMIC_BASE, NX_COMPAT
Source: Binary string: ole32.pdb$. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: fltLib.pdb2. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ClusApi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: mpr.pdb) source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wkernel32.pdb source: WerFault.exe, 0000000E.00000003.300083889.0000000004C39000.00000004.00000001.sdmp
Source: Binary string: bcrypt.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc_os.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ucrtbase.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: msvcrt.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: wrpcrt4.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wntdll.pdb source: WerFault.exe, 0000000E.00000003.299305257.0000000002DE3000.00000004.00000001.sdmp
Source: Binary string: shcore.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: dwmapi.pdb* source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wgdi32.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: advapi32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: fltLib.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: rundll32.pdbk source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: wsspicli.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: shell32.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: msvcp_win.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: dnsapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: combase.pdb(. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: rasapi32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wkernelbase.pdb source: WerFault.exe, 0000000E.00000003.299742055.0000000002DEF000.00000004.00000001.sdmp
Source: Binary string: wimm32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: shlwapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: mpr.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wwin32u.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: setupapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: imagehlp.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc.pdb* source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wUxTheme.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: dwmapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wntdll.pdb( source: WerFault.exe, 0000000E.00000003.299305257.0000000002DE3000.00000004.00000001.sdmp
Source: Binary string: shcore.pdbk source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: profapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ws2_32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: winspool.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wgdi32full.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: shell32.pdbk source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: sechost.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: iphlpapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: rasman.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: nsi.pdb source: WerFault.exe, 0000000E.00000003.308241383.0000000005271000.00000004.00000040.sdmp
Source: Binary string: sechost.pdb.. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: propsys.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: cfgmgr32.pdbk source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: fpmvppp.pdb source: loaddll32.exe, 00000000.00000002.229634203.0000000010025000.00000002.00020000.sdmp, c2b6efb1_by_Libranalysis.dll
Source: Binary string: powrprof.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: msctf.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: setupapi.pdb. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ole32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc_os.pdb<. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: AcLayers.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: Kernel.Appcore.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: cryptbase.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wkernelbase.pdb( source: WerFault.exe, 0000000E.00000003.299742055.0000000002DEF000.00000004.00000001.sdmp
Source: Binary string: bcryptprimitives.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: cfgmgr32.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: combase.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: Windows.Storage.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wkernel32.pdb( source: WerFault.exe, 0000000E.00000003.299310661.0000000002DE9000.00000004.00000001.sdmp
Source: Binary string: rundll32.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: oleaut32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: apphelp.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: wuser32.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp

Networking:

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C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor IPs: 43.229.206.212:443
Source: Malware configuration extractor IPs: 82.209.17.209:8172
Source: Malware configuration extractor IPs: 162.241.209.225:4125
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 82.209.17.209 82.209.17.209
Source: Joe Sandbox View IP Address: 162.241.209.225 162.241.209.225
Source: Joe Sandbox View IP Address: 43.229.206.212 43.229.206.212
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: PODA-ASCZ PODA-ASCZ
Source: Joe Sandbox View ASN Name: UNIFIEDLAYER-AS-1US UNIFIEDLAYER-AS-1US
Source: Joe Sandbox View ASN Name: INET-AS-IDPTInetGlobalIndoID INET-AS-IDPTInetGlobalIndoID
Source: WerFault.exe, 0000000E.00000003.321854224.0000000004B7C000.00000004.00000001.sdmp String found in binary or memory: http://crl.microsoft

E-Banking Fraud:

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Yara detected Dridex unpacked file
Source: Yara match File source: 00000002.00000002.328088849.0000000010001000.00000020.00020000.sdmp, type: MEMORY
Source: Yara match File source: 2.2.rundll32.exe.10000000.3.unpack, type: UNPACKEDPE

System Summary:

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Detected potential crypto function
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_100220F0 0_2_100220F0
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_10011460 2_2_10011460
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_1000846C 2_2_1000846C
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_10001494 2_2_10001494
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_1000A52C 2_2_1000A52C
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_10011D58 2_2_10011D58
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_10019348 2_2_10019348
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_10010754 2_2_10010754
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_100090CC 2_2_100090CC
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 6372 -s 764
Sample file is different than original file name gathered from version info
Source: c2b6efb1_by_Libranalysis.dll Binary or memory string: OriginalFilenamex2otfb.dllN vs c2b6efb1_by_Libranalysis.dll
Uses 32bit PE files
Source: c2b6efb1_by_Libranalysis.dll Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL
Source: c2b6efb1_by_Libranalysis.dll Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: classification engine Classification label: mal72.troj.winDLL@6/4@0/3
Source: C:\Windows\SysWOW64\WerFault.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess6372
Source: C:\Windows\SysWOW64\WerFault.exe File created: C:\ProgramData\Microsoft\Windows\WER\Temp\WER9B85.tmp Jump to behavior
Source: c2b6efb1_by_Libranalysis.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 Jump to behavior
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
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\c2b6efb1_by_Libranalysis.dll',#1
Source: c2b6efb1_by_Libranalysis.dll ReversingLabs: Detection: 30%
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe 'C:\Users\user\Desktop\c2b6efb1_by_Libranalysis.dll'
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\c2b6efb1_by_Libranalysis.dll',#1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\c2b6efb1_by_Libranalysis.dll',#1
Source: C:\Windows\SysWOW64\rundll32.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 6372 -s 764
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\c2b6efb1_by_Libranalysis.dll',#1 Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\c2b6efb1_by_Libranalysis.dll',#1 Jump to behavior
Source: c2b6efb1_by_Libranalysis.dll Static PE information: DYNAMIC_BASE, NX_COMPAT
Source: c2b6efb1_by_Libranalysis.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: Binary string: ole32.pdb$. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: fltLib.pdb2. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ClusApi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: mpr.pdb) source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wkernel32.pdb source: WerFault.exe, 0000000E.00000003.300083889.0000000004C39000.00000004.00000001.sdmp
Source: Binary string: bcrypt.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc_os.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ucrtbase.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: msvcrt.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: wrpcrt4.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wntdll.pdb source: WerFault.exe, 0000000E.00000003.299305257.0000000002DE3000.00000004.00000001.sdmp
Source: Binary string: shcore.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: dwmapi.pdb* source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wgdi32.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: advapi32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: fltLib.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: rundll32.pdbk source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: wsspicli.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: shell32.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: msvcp_win.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: dnsapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: combase.pdb(. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: rasapi32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wkernelbase.pdb source: WerFault.exe, 0000000E.00000003.299742055.0000000002DEF000.00000004.00000001.sdmp
Source: Binary string: wimm32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: shlwapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: mpr.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wwin32u.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: setupapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: imagehlp.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc.pdb* source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wUxTheme.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: dwmapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wntdll.pdb( source: WerFault.exe, 0000000E.00000003.299305257.0000000002DE3000.00000004.00000001.sdmp
Source: Binary string: shcore.pdbk source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: profapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ws2_32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: winspool.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wgdi32full.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: shell32.pdbk source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: sechost.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: iphlpapi.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: rasman.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: nsi.pdb source: WerFault.exe, 0000000E.00000003.308241383.0000000005271000.00000004.00000040.sdmp
Source: Binary string: sechost.pdb.. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: propsys.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: cfgmgr32.pdbk source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: fpmvppp.pdb source: loaddll32.exe, 00000000.00000002.229634203.0000000010025000.00000002.00020000.sdmp, c2b6efb1_by_Libranalysis.dll
Source: Binary string: powrprof.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: msctf.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: setupapi.pdb. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: ole32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc_os.pdb<. source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: AcLayers.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: Kernel.Appcore.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: cryptbase.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: wkernelbase.pdb( source: WerFault.exe, 0000000E.00000003.299742055.0000000002DEF000.00000004.00000001.sdmp
Source: Binary string: bcryptprimitives.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: cfgmgr32.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: combase.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: Windows.Storage.pdb source: WerFault.exe, 0000000E.00000003.308228455.0000000005260000.00000004.00000040.sdmp
Source: Binary string: wkernel32.pdb( source: WerFault.exe, 0000000E.00000003.299310661.0000000002DE9000.00000004.00000001.sdmp
Source: Binary string: rundll32.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: oleaut32.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: sfc.pdb source: WerFault.exe, 0000000E.00000003.308233987.0000000005266000.00000004.00000040.sdmp
Source: Binary string: apphelp.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp
Source: Binary string: wuser32.pdb source: WerFault.exe, 0000000E.00000003.308212119.00000000050D1000.00000004.00000001.sdmp

Data Obfuscation:

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Uses code obfuscation techniques (call, push, ret)
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10006207 push ebx; ret 0_2_10006208
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10004E0F push 822377FAh; iretd 0_2_10004E14
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10005813 push eax; ret 0_2_1000590D
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10006830 push 82235DBAh; iretd 0_2_10006855
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10002C33 push 0E950FD0h; iretd 0_2_10002D7C
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_1000585A push eax; ret 0_2_1000590D
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10005A7B push cs; iretd 0_2_10005B7E
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10006A80 push ebx; iretd 0_2_10006A85
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10002C8E push 0E950FD0h; iretd 0_2_10002D7C
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_1000388E push 8223930Ah; iretd 0_2_10003893
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_100048AF push 8223A1AEh; iretd 0_2_100048B4
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_100066D0 push 8223737Ah; iretd 0_2_100066D5
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_100054EF push 822385B2h; iretd 0_2_100054F4
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_1000530F push 82230D7Eh; iretd 0_2_10005314
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_1000574F push 82238352h; iretd 0_2_10005754
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_100037A2 push cs; retf 0_2_100037DC
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_100039C3 push edi; retf 0_2_100039C4
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10005FD6 push 0E950020h; retf 0_2_10005FDE
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_10002DF3 push cs; iretd 0_2_10002E7C
Source: C:\Windows\System32\loaddll32.exe Code function: 0_2_100037F5 push cs; retf 0_2_100037DC
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_1000F6CC push esi; mov dword ptr [esp], 00000000h 2_2_1000F6CD
Source: initial sample Static PE information: section name: .text entropy: 7.53078515147

Hooking and other Techniques for Hiding and Protection:

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Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Source: C:\Windows\SysWOW64\WerFault.exe Registry key monitored for changes: HKEY_CURRENT_USER_Classes Jump to behavior
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
Source: WerFault.exe, 0000000E.00000002.324513624.0000000005280000.00000002.00000001.sdmp Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: WerFault.exe, 0000000E.00000002.323547539.0000000004B4E000.00000004.00000001.sdmp Binary or memory string: Hyper-V RAWe
Source: WerFault.exe, 0000000E.00000002.323547539.0000000004B4E000.00000004.00000001.sdmp Binary or memory string: Hyper-V RAW
Source: WerFault.exe, 0000000E.00000002.324513624.0000000005280000.00000002.00000001.sdmp Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: WerFault.exe, 0000000E.00000002.324513624.0000000005280000.00000002.00000001.sdmp Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: WerFault.exe, 0000000E.00000002.324513624.0000000005280000.00000002.00000001.sdmp Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.

Anti Debugging:

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Checks if the current process is being debugged
Source: C:\Windows\System32\loaddll32.exe Process queried: DebugPort Jump to behavior
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_10006D50 GetUserNameW,MessageBoxW,GetLastError,CreateFileA,DebugBreak,FlushFileBuffers,FreeEnvironmentStringsA,GetConsoleOutputCP,GetEnvironmentStrings,GetLocaleInfoA,GetStartupInfoA,GetStringTypeA,HeapValidate,IsBadReadPtr,LCMapStringA,LoadLibraryA,OutputDebugStringA, 2_2_10006D50

HIPS / PFW / Operating System Protection Evasion:

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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\c2b6efb1_by_Libranalysis.dll',#1 Jump to behavior

Language, Device and Operating System Detection:

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Contains functionality to query locales information (e.g. system language)
Source: C:\Windows\SysWOW64\rundll32.exe Code function: GetUserNameW,MessageBoxW,GetLastError,CreateFileA,DebugBreak,FlushFileBuffers,FreeEnvironmentStringsA,GetConsoleOutputCP,GetEnvironmentStrings,GetLocaleInfoA,GetStartupInfoA,GetStringTypeA,HeapValidate,IsBadReadPtr,LCMapStringA,LoadLibraryA,OutputDebugStringA, 2_2_10006D50
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 2_2_10006D50 GetUserNameW,MessageBoxW,GetLastError,CreateFileA,DebugBreak,FlushFileBuffers,FreeEnvironmentStringsA,GetConsoleOutputCP,GetEnvironmentStrings,GetLocaleInfoA,GetStartupInfoA,GetStringTypeA,HeapValidate,IsBadReadPtr,LCMapStringA,LoadLibraryA,OutputDebugStringA, 2_2_10006D50
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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 413035 Sample: c2b6efb1_by_Libranalysis Startdate: 13/05/2021 Architecture: WINDOWS Score: 72 17 162.241.209.225 UNIFIEDLAYER-AS-1US United States 2->17 19 82.209.17.209 PODA-ASCZ Czech Republic 2->19 21 43.229.206.212 INET-AS-IDPTInetGlobalIndoID Indonesia 2->21 23 Found malware configuration 2->23 25 Multi AV Scanner detection for submitted file 2->25 27 Yara detected Dridex unpacked file 2->27 29 2 other signatures 2->29 9 loaddll32.exe 1 2->9         started        signatures3 process4 process5 11 cmd.exe 1 9->11         started        process6 13 rundll32.exe 11->13         started        process7 15 WerFault.exe 23 8 13->15         started       
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
82.209.17.209
unknown Czech Republic
30764 PODA-ASCZ true
162.241.209.225
unknown United States
46606 UNIFIEDLAYER-AS-1US true
43.229.206.212
unknown Indonesia
24532 INET-AS-IDPTInetGlobalIndoID true