Resubmissions

19-01-2022 16:33

220119-t2pntsbeh3 10

25-11-2021 12:32

211125-pqpggafbfp 8

Analysis

  • max time kernel
    154s
  • max time network
    160s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    25-11-2021 12:32

General

  • Target

    d69e8d0678be5a8da741058f0ae2a6f99ffb8e3326ac50fda54336b23a546fc6.exe

  • Size

    6.3MB

  • MD5

    d8f03daa4389b4e6ce37a3d3664e74f5

  • SHA1

    9f044353923afec678d50777e8dc2e18a4b5ce21

  • SHA256

    d69e8d0678be5a8da741058f0ae2a6f99ffb8e3326ac50fda54336b23a546fc6

  • SHA512

    4ea37e044be69b88c53f7bdecd0eb5c431fc3f112bd1cfd53942463756cd3187a3a5a2ead9a4ea82f6fc323213a17b9231d6ce9493f68cfe71aac250121a99f9

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 13 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d69e8d0678be5a8da741058f0ae2a6f99ffb8e3326ac50fda54336b23a546fc6.exe
    "C:\Users\Admin\AppData\Local\Temp\d69e8d0678be5a8da741058f0ae2a6f99ffb8e3326ac50fda54336b23a546fc6.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\Fieldston Software\Extended Voul Painter 3.2.1.6\install\B615D1E\adv2.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\d69e8d0678be5a8da741058f0ae2a6f99ffb8e3326ac50fda54336b23a546fc6.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1636075031 " AI_EUIMSI=""
      2⤵
      • Enumerates connected drives
      • Suspicious use of FindShellTrayWindow
      PID:2804
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3452
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 925A455FB71F539D6E2CFAF82C126A2B C
      2⤵
      • Loads dropped DLL
      PID:1204
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4EF86AC7B38A9E28F2F2ADEEBA3DD298
      2⤵
      • Loads dropped DLL
      PID:3536
    • C:\Users\Admin\AppData\Roaming\Fieldston Software\Extended Voul Painter\syncapp.exe
      "C:\Users\Admin\AppData\Roaming\Fieldston Software\Extended Voul Painter\syncapp.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      PID:2728

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1204-124-0x00000000027C0000-0x00000000027C1000-memory.dmp

    Filesize

    4KB

  • memory/1204-123-0x00000000027C0000-0x00000000027C1000-memory.dmp

    Filesize

    4KB

  • memory/2804-130-0x0000000002A70000-0x0000000002A71000-memory.dmp

    Filesize

    4KB

  • memory/2804-131-0x0000000002A70000-0x0000000002A71000-memory.dmp

    Filesize

    4KB

  • memory/3452-121-0x000001997FCB0000-0x000001997FCB2000-memory.dmp

    Filesize

    8KB

  • memory/3452-120-0x000001997FCB0000-0x000001997FCB2000-memory.dmp

    Filesize

    8KB

  • memory/3536-135-0x0000000000180000-0x0000000000181000-memory.dmp

    Filesize

    4KB

  • memory/3536-134-0x0000000000180000-0x0000000000181000-memory.dmp

    Filesize

    4KB