Analysis

  • max time kernel
    132s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    21/11/2022, 15:23

General

  • Target
    file.exe
  • Size 1011KB
  • Sample221121-ssf5nafc75
  • SHA256 1e178cb5d1ceea8f6a38b6ac8c8cf7f930419e89d9d2c161548643dcff600c96
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 42 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 20 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:112
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Wuwedteata.tmp",Tiuqiiueaur
      2⤵
      • Blocklisted process makes network request
      • Sets DLL path for service in the registry
      • Sets service image path in registry
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 22530
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:2000
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
        3⤵
          PID:1780
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k LocalService
      1⤵
      • Loads dropped DLL
      PID:2028
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "c:\program files (x86)\microsoft visual studio 8\common7\adobeid.dll",hitbRjVP
        2⤵
          PID:1104

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            63921eef-8415-4368-9201-f0df4af5778f.devicemetadata-ms

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\63921eef-8415-4368-9201-f0df4af5778f.devicemetadata-ms
            • Size 107KB
            • SHA256 a3200e64195e3f3eaf17239602f38684802bf8aa8786189ca0190ca9f7486b31
            • MD5 SHA1 SHA512 SSDEEP

            CiAB0001.000

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\CiAB0001.000
            • Size 240B
            • SHA256 04fd7654331261ff9ec331c31b238ba7770f082abfb817d7881813ec02084a4e
            • MD5 SHA1 SHA512

            Desktop.ini

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\Desktop.ini
            • Size 343B
            • SHA256 a94a4b63382c2aa263c4a353e54151681ee314981df61dd365ce27c1f150ed03
            • MD5 SHA1 SHA512

            GRINTL32.REST.trx_dll

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\GRINTL32.REST.trx_dll
            • Size 246KB
            • SHA256 6f6f870bcbb6b7826b0b609e380e57e50fa034cd3eb7ecd38c638707f7cdce7f
            • MD5 SHA1 SHA512 SSDEEP

            Help_MKWD_AssetId.H1W

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\Help_MKWD_AssetId.H1W
            • Size 229KB
            • SHA256 4ef68eed7e223505c5b747b21cb86062863ae160cf1f5fb251039386ba30b10b
            • MD5 SHA1 SHA512 SSDEEP

            Help_MValidator.Lck

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\Help_MValidator.Lck
            • Size 4B
            • SHA256 db44b8db4f05d720ef1a57abadeed0c164d47b17416c7dd7d136d8f10fba91c9
            • MD5 SHA1 SHA512

            Riirsyiyayu.tmp

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\Riirsyiyayu.tmp
            • Size 3.5MB
            • SHA256 be4570bde8f6d3315dfbc01d8f5c0219ae44ff096646650b7a1d2db429e388d6
            • MD5 SHA1 SHA512 SSDEEP

            SETTINGS.DIA

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\SETTINGS.DIA
            • Size 4B
            • SHA256 67abdd721024f0ff4e0b3f4c2fc13bc5bad42d0b7851d456d88d203d15aaa450
            • MD5 SHA1 SHA512

            Sticky Notes.lnk

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\Sticky Notes.lnk
            • Size 1KB
            • SHA256 eca4ce8da3f0105bb78436711f1971dcccbf756c16d119203e55f8a2af627ce9
            • MD5 SHA1 SHA512

            guest.bmp

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\guest.bmp
            • Size 48KB
            • SHA256 40015814487b93a8372f33284d45586739a4a1e9d2b7961ab8c6d4d9561d10cb
            • MD5 SHA1 SHA512 SSDEEP

            overlay.png

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\overlay.png
            • Size 28KB
            • SHA256 5c5b0de42d55486ed61dd3a6e96ab09f467bb38ae39fced97adc51ba07426c0e
            • MD5 SHA1 SHA512 SSDEEP

            usertile26.bmp

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\usertile26.bmp
            • Size 48KB
            • SHA256 410fd53c9634965c2b56efbf7a774d79014c98a2cd1d767adc51636e97428c5d
            • MD5 SHA1 SHA512 SSDEEP

            usertile30.bmp

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\usertile30.bmp
            • Size 48KB
            • SHA256 e69f8ed2ba8b1bf7bccd65052fb89719e1ff5178cf82b95fd302a3ae950811bb
            • MD5 SHA1 SHA512 SSDEEP

            usertile37.bmp

            • Path C:\ProgramData\{36041D63-C487-DEE5-C779-2662B278DB3B}\usertile37.bmp
            • Size 48KB
            • SHA256 c238df51bf8d9f5d8c36081a83f31c1338cde73d3347b9ba6c7f62892e367a44
            • MD5 SHA1 SHA512 SSDEEP

            Wuwedteata.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\Wuwedteata.tmp
            • Size 752KB
            • SHA256 6ecc725eab418e27d8fa2f1031fce6bc119d677b8d72e0447050a87489e8e0ca
            • MD5 SHA1 SHA512 SSDEEP

            adobeid.dll

            • Path \??\c:\program files (x86)\microsoft visual studio 8\common7\adobeid.dll
            • Size 752KB
            • SHA256 86df2fce65511995b0adff7ced252e9d1443c2a48082ee06c2d33f28fe3dad21
            • MD5 SHA1 SHA512 SSDEEP

            AdobeID.dll

            • Path \Program Files (x86)\Microsoft Visual Studio 8\Common7\AdobeID.dll
            • Size 752KB
            • SHA256 86df2fce65511995b0adff7ced252e9d1443c2a48082ee06c2d33f28fe3dad21
            • MD5 SHA1 SHA512 SSDEEP

            AdobeID.dll

            • Path \Program Files (x86)\Microsoft Visual Studio 8\Common7\AdobeID.dll
            • Size 752KB
            • SHA256 86df2fce65511995b0adff7ced252e9d1443c2a48082ee06c2d33f28fe3dad21
            • MD5 SHA1 SHA512 SSDEEP

            AdobeID.dll

            • Path \Program Files (x86)\Microsoft Visual Studio 8\Common7\AdobeID.dll
            • Size 752KB
            • SHA256 86df2fce65511995b0adff7ced252e9d1443c2a48082ee06c2d33f28fe3dad21
            • MD5 SHA1 SHA512 SSDEEP

            AdobeID.dll

            • Path \Program Files (x86)\Microsoft Visual Studio 8\Common7\AdobeID.dll
            • Size 752KB
            • SHA256 86df2fce65511995b0adff7ced252e9d1443c2a48082ee06c2d33f28fe3dad21
            • MD5 SHA1 SHA512 SSDEEP

            AdobeID.dll

            • Path \Program Files (x86)\Microsoft Visual Studio 8\Common7\AdobeID.dll
            • Size 752KB
            • SHA256 86df2fce65511995b0adff7ced252e9d1443c2a48082ee06c2d33f28fe3dad21
            • MD5 SHA1 SHA512 SSDEEP

            firefox.exe

            • Path \Program Files\Mozilla Firefox\firefox.exe
            • Size 562KB
            • SHA256 8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606
            • MD5 SHA1 SHA512 SSDEEP

            firefox.exe

            • Path \Program Files\Mozilla Firefox\firefox.exe
            • Size 562KB
            • SHA256 8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606
            • MD5 SHA1 SHA512 SSDEEP

            firefox.exe

            • Path \Program Files\Mozilla Firefox\firefox.exe
            • Size 562KB
            • SHA256 8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606
            • MD5 SHA1 SHA512 SSDEEP

            firefox.exe

            • Path \Program Files\Mozilla Firefox\firefox.exe
            • Size 562KB
            • SHA256 8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606
            • MD5 SHA1 SHA512 SSDEEP

            Wuwedteata.tmp

            • Path \Users\Admin\AppData\Local\Temp\Wuwedteata.tmp
            • Size 752KB
            • SHA256 6ecc725eab418e27d8fa2f1031fce6bc119d677b8d72e0447050a87489e8e0ca
            • MD5 SHA1 SHA512 SSDEEP

            memory/112-59-0x0000000000400000-0x0000000000662000-memory.dmp

            memory/112-54-0x0000000000670000-0x000000000074E000-memory.dmp

            memory/112-58-0x0000000002010000-0x0000000002131000-memory.dmp

            memory/112-57-0x0000000000670000-0x000000000074E000-memory.dmp

            memory/112-55-0x0000000074C11000-0x0000000074C13000-memory.dmp

            memory/1104-111-0x00000000041A0000-0x0000000004D1A000-memory.dmp

            memory/1104-110-0x00000000041A0000-0x0000000004D1A000-memory.dmp

            memory/1104-108-0x00000000041A0000-0x0000000004D1A000-memory.dmp

            memory/1956-72-0x00000000041F0000-0x0000000004330000-memory.dmp

            memory/1956-66-0x0000000004850000-0x00000000053CA000-memory.dmp

            memory/1956-81-0x0000000004850000-0x00000000053CA000-memory.dmp

            memory/1956-63-0x0000000004850000-0x00000000053CA000-memory.dmp

            memory/1956-65-0x0000000004850000-0x00000000053CA000-memory.dmp

            memory/1956-67-0x00000000041F0000-0x0000000004330000-memory.dmp

            memory/1956-68-0x00000000041F0000-0x0000000004330000-memory.dmp

            memory/1956-69-0x00000000041F0000-0x0000000004330000-memory.dmp

            memory/1956-74-0x00000000041F0000-0x0000000004330000-memory.dmp

            memory/1956-73-0x00000000041F0000-0x0000000004330000-memory.dmp

            memory/2000-70-0x00000000000E0000-0x0000000000377000-memory.dmp

            memory/2000-76-0x00000000022A0000-0x00000000023E0000-memory.dmp

            memory/2000-77-0x00000000022A0000-0x00000000023E0000-memory.dmp

            memory/2000-78-0x000007FEFB5D1000-0x000007FEFB5D3000-memory.dmp

            memory/2000-79-0x00000000000E0000-0x0000000000377000-memory.dmp

            memory/2000-80-0x0000000001FF0000-0x0000000002298000-memory.dmp

            memory/2028-88-0x0000000004240000-0x0000000004DBA000-memory.dmp

            memory/2028-86-0x0000000004240000-0x0000000004DBA000-memory.dmp

            memory/2028-117-0x0000000004240000-0x0000000004DBA000-memory.dmp