Analysis

  • max time kernel
    165s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 16:13

General

  • Target
    93d1e2cb11d3c40ce8f90faf5168e72b2a246688255b12a22c17dba101cf79b3_JC.vbs
  • Size 1012KB
  • Sample231012-tpde2aaf6v
  • SHA256 93d1e2cb11d3c40ce8f90faf5168e72b2a246688255b12a22c17dba101cf79b3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • icedid

Campaign
  • 361893872

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • Blocklisted process makes network request 7 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\93d1e2cb11d3c40ce8f90faf5168e72b2a246688255b12a22c17dba101cf79b3_JC.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C://windows/Temp/0291-1.dll
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4076
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C rundll32.exe C:\Users\Admin\AppData\Roaming\erevgubd3\Admin\Weistaacnn.dll,#1
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1960
        • C:\Windows\system32\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Roaming\erevgubd3\Admin\Weistaacnn.dll,#1
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Modifies registry class
          PID:3964
  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\erevgubd3\Admin\Weistaacnn.dll",#1
    1⤵
    • Loads dropped DLL
    PID:4216

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        77EC63BDA74BD0D0E0426DC8F8008506

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506
        • Size 330B
        • SHA256 928a676a762a83b4f93d93e05f67fd213a115018b1b1c7345b234f5e10ece287
        • MD5 SHA1 SHA512

        Weistaacnn.dll

        • Path C:\Users\Admin\AppData\Roaming\erevgubd3\Admin\Weistaacnn.dll
        • Size 556KB
        • SHA256 b4f17e438636e166a94b2cd7c83e1c2b3cf1184122b6204521c1024e293ba8b1
        • MD5 SHA1 SHA512 SSDEEP

        Weistaacnn.dll

        • Path C:\Users\Admin\AppData\Roaming\erevgubd3\Admin\Weistaacnn.dll
        • Size 556KB
        • SHA256 b4f17e438636e166a94b2cd7c83e1c2b3cf1184122b6204521c1024e293ba8b1
        • MD5 SHA1 SHA512 SSDEEP

        Weistaacnn.dll

        • Path C:\Users\Admin\AppData\Roaming\erevgubd3\Admin\Weistaacnn.dll
        • Size 556KB
        • SHA256 b4f17e438636e166a94b2cd7c83e1c2b3cf1184122b6204521c1024e293ba8b1
        • MD5 SHA1 SHA512 SSDEEP

        0291-1.dll

        • Path C:\Windows\Temp\0291-1.dll
        • Size 328KB
        • SHA256 226faebe0332ae4972d6bbc0e99553b4875322fb4336dfe3e42462d4c3624e79
        • MD5 SHA1 SHA512 SSDEEP

        0291-1.dll

        • Path C:\windows\Temp\0291-1.dll
        • Size 328KB
        • SHA256 226faebe0332ae4972d6bbc0e99553b4875322fb4336dfe3e42462d4c3624e79
        • MD5 SHA1 SHA512 SSDEEP

        memory/3964-18-0x000002899B260000-0x000002899B2AC000-memory.dmp

        memory/3964-13-0x000002899B260000-0x000002899B2AC000-memory.dmp

        memory/3964-12-0x000002899B1C0000-0x000002899B20F000-memory.dmp

        memory/3964-19-0x000002899B260000-0x000002899B2AC000-memory.dmp

        memory/3964-20-0x000002899B1C0000-0x000002899B20F000-memory.dmp

        memory/3964-26-0x000002899B260000-0x000002899B2AC000-memory.dmp

        memory/3964-27-0x000002899B260000-0x000002899B2AC000-memory.dmp

        memory/3964-29-0x000002899B260000-0x000002899B2AC000-memory.dmp

        memory/4076-8-0x0000000000AB0000-0x0000000000ABD000-memory.dmp

        memory/4076-4-0x0000000000AB0000-0x0000000000ABD000-memory.dmp

        memory/4216-31-0x0000021D7D940000-0x0000021D7D98F000-memory.dmp

        memory/4216-32-0x0000021D7DB00000-0x0000021D7DB4C000-memory.dmp