Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 12:09

General

  • Target
    d35381609a7837b54625620b260ceba0_JaffaCakes118.exe
  • Size 580KB
  • Sample240405-pbmpbsbe51
  • SHA256 e451310ccd2dc212d3c4233ef75c6bd4a6b238e6ef44119ae4769cac2a2e5f54
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 13 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Suspicious use of SetThreadContext 13 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d35381609a7837b54625620b260ceba0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d35381609a7837b54625620b260ceba0_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\steamerrorreporter.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\steamerrorreporter.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3752
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\steamerrorreporter.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\steamerrorreporter.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1588
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:544
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:3316
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:1576
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:692
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:4448
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:1592
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:4032
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:2856
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:4628
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:396
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:1872
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:3960
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Loads dropped DLL
        PID:4568

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        RegAsm.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RegAsm.exe.log
        • Size 128B
        • SHA256 e24033ceec97fd03402b03acaaabd1d1e378e83bb1683afbccac760e00f8ead5
        • MD5 SHA1 SHA512

        AgileDotNetRT.dll

        • Path C:\Users\Admin\AppData\Local\Temp\ee50048c-b6eb-4ad3-b983-551cd617a0fd\AgileDotNetRT.dll
        • Size 136KB
        • SHA256 77dc05a6bda90757f66552ee3f469b09f1e00732b4edca0f542872fb591ed9db
        • MD5 SHA1 SHA512 SSDEEP

        steamerrorreporter.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\steamerrorreporter.exe
        • Size 580KB
        • SHA256 e451310ccd2dc212d3c4233ef75c6bd4a6b238e6ef44119ae4769cac2a2e5f54
        • MD5 SHA1 SHA512 SSDEEP

        memory/396-123-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/544-36-0x0000000003060000-0x0000000003070000-memory.dmp

        memory/544-27-0x0000000000400000-0x000000000046E000-memory.dmp

        memory/544-37-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/544-35-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/544-45-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/544-44-0x00000000722A0000-0x00000000722D7000-memory.dmp

        memory/544-41-0x00000000722A0000-0x00000000722D7000-memory.dmp

        memory/544-38-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/692-83-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/692-84-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/692-77-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/692-80-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/692-71-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/692-78-0x00000000029B0000-0x00000000029C0000-memory.dmp

        memory/1576-64-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1576-57-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/1576-59-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1576-61-0x0000000002BA0000-0x0000000002BB0000-memory.dmp

        memory/1576-62-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/1576-65-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/1588-25-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1588-23-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1588-46-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1588-47-0x0000000000F50000-0x0000000000F60000-memory.dmp

        memory/1588-48-0x0000000000F50000-0x0000000000F60000-memory.dmp

        memory/1588-24-0x0000000000F50000-0x0000000000F60000-memory.dmp

        memory/1588-26-0x0000000000F50000-0x0000000000F60000-memory.dmp

        memory/1592-91-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/1592-98-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/1592-92-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1592-95-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/1592-97-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1600-0-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1600-2-0x00000000014F0000-0x0000000001500000-memory.dmp

        memory/1600-3-0x00000000014F0000-0x0000000001500000-memory.dmp

        memory/1600-1-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1600-20-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/1872-130-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/2856-113-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/2856-111-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/2856-109-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/2856-110-0x0000000000BD0000-0x0000000000BE0000-memory.dmp

        memory/3316-67-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/3316-66-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/3316-56-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/3316-63-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/3316-60-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/3316-58-0x0000000002D40000-0x0000000002D50000-memory.dmp

        memory/3316-52-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/3752-39-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/3752-42-0x00000000018D0000-0x00000000018E0000-memory.dmp

        memory/3752-15-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/3752-16-0x00000000018D0000-0x00000000018E0000-memory.dmp

        memory/3752-19-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/3752-21-0x00000000018D0000-0x00000000018E0000-memory.dmp

        memory/3752-40-0x00000000018D0000-0x00000000018E0000-memory.dmp

        memory/3960-140-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/4032-99-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/4032-94-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4032-96-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/4032-93-0x0000000002D30000-0x0000000002D40000-memory.dmp

        memory/4032-89-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/4032-87-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4032-100-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4448-82-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/4448-74-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/4448-72-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4448-76-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4448-75-0x0000000002860000-0x0000000002870000-memory.dmp

        memory/4448-79-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/4448-81-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4568-143-0x0000000074190000-0x00000000741EB000-memory.dmp

        memory/4628-104-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4628-106-0x0000000002CB0000-0x0000000002CC0000-memory.dmp

        memory/4628-107-0x0000000075470000-0x0000000075A21000-memory.dmp

        memory/4628-108-0x00000000722D0000-0x0000000072307000-memory.dmp

        memory/4628-105-0x0000000074190000-0x00000000741EB000-memory.dmp