Resubmissions

19-01-2022 16:33

220119-t2pntsbeh3 10

25-11-2021 12:32

211125-pqpggafbfp 8

Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-01-2022 16:33

General

  • Target

    d69e8d0678be5a8da741058f0ae2a6f99ffb8e3326ac50fda54336b23a546fc6.exe

  • Size

    6.3MB

  • MD5

    d8f03daa4389b4e6ce37a3d3664e74f5

  • SHA1

    9f044353923afec678d50777e8dc2e18a4b5ce21

  • SHA256

    d69e8d0678be5a8da741058f0ae2a6f99ffb8e3326ac50fda54336b23a546fc6

  • SHA512

    4ea37e044be69b88c53f7bdecd0eb5c431fc3f112bd1cfd53942463756cd3187a3a5a2ead9a4ea82f6fc323213a17b9231d6ce9493f68cfe71aac250121a99f9

Malware Config

Extracted

Family

cryptbot

C2

veowvf15.top

morysl01.top

Attributes
  • payload_url

    http://tyngle01.top/download.php?file=lv.exe

Signatures

  • Babadeda

    Babadeda is a crypter delivered as a legitimate installer and used to drop other malware families.

  • Babadeda Crypter 1 IoCs
  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Blocklisted process makes network request 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 11 IoCs
  • 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 11 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 33 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
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1148
    • 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 1642354237 " AI_EUIMSI=""
      2⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Suspicious use of FindShellTrayWindow
      PID:2032
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9656FC4529242E515EC531BAA781C0DF C
      2⤵
      • Loads dropped DLL
      PID:596
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 33A081468EF46F283854C5ECDD24259F
      2⤵
      • Loads dropped DLL
      PID:1900
    • 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
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\UFZtqYDIyOh & timeout 4 & del /f /q "C:\Users\Admin\AppData\Roaming\Fieldston Software\Extended Voul Painter\syncapp.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1948
        • C:\Windows\SysWOW64\timeout.exe
          timeout 4
          4⤵
          • Delays execution with timeout.exe
          PID:1188

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/708-57-0x000007FEFC151000-0x000007FEFC153000-memory.dmp

    Filesize

    8KB

  • memory/1148-54-0x0000000076511000-0x0000000076513000-memory.dmp

    Filesize

    8KB

  • memory/2040-124-0x0000000000AD0000-0x0000000000E6B000-memory.dmp

    Filesize

    3.6MB