Resubmissions

19-01-2022 16:34

220119-t229xsbecl 10

25-11-2021 12:32

211125-pqpggaaed4 8

Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-01-2022 16:34

General

  • Target

    d2fc2159debd0a2222673cdc028c5f88ca5cc6c72f5665d60c5d27806757cff2.exe

  • Size

    5.7MB

  • MD5

    998dd3d8897f2c619d9e5975f7aeed7e

  • SHA1

    817745be0e42515167e1650b77630b7b34c4e8ab

  • SHA256

    d2fc2159debd0a2222673cdc028c5f88ca5cc6c72f5665d60c5d27806757cff2

  • SHA512

    cdb8fc0e08007911bcf5d51af6cafc4773ec10df8cf91f9c132d36c23dbee1fac563651f9cdf4513a01fdb4d95cf26d4695944e1eda3067dee4d4b9c04cc25bd

Malware Config

Extracted

Family

cryptbot

C2

cemeif67.top

morota06.top

Attributes
  • payload_url

    http://bojitn09.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\d2fc2159debd0a2222673cdc028c5f88ca5cc6c72f5665d60c5d27806757cff2.exe
    "C:\Users\Admin\AppData\Local\Temp\d2fc2159debd0a2222673cdc028c5f88ca5cc6c72f5665d60c5d27806757cff2.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1316
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\linq2db.net\Linq Reports Creator 3.6.7.2\install\129B23C\adv.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\d2fc2159debd0a2222673cdc028c5f88ca5cc6c72f5665d60c5d27806757cff2.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1642354267 " AI_EUIMSI=""
      2⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Suspicious use of FindShellTrayWindow
      PID:824
  • 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:1168
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ADE1D9C0DDDC29D576404620C103BA0E C
      2⤵
      • Loads dropped DLL
      PID:1816
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B6C98CD0E5F1059FB618478951F512C7
      2⤵
      • Loads dropped DLL
      PID:544
    • C:\Users\Admin\AppData\Roaming\linq2db.net\Linq Reports Creator\fsucenter.exe
      "C:\Users\Admin\AppData\Roaming\linq2db.net\Linq Reports Creator\fsucenter.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:1124
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\pUHwHdST & timeout 4 & del /f /q "C:\Users\Admin\AppData\Roaming\linq2db.net\Linq Reports Creator\fsucenter.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1836
        • C:\Windows\SysWOW64\timeout.exe
          timeout 4
          4⤵
          • Delays execution with timeout.exe
          PID:976

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1124-125-0x0000000000190000-0x00000000004B4000-memory.dmp

    Filesize

    3.1MB

  • memory/1168-58-0x000007FEFC371000-0x000007FEFC373000-memory.dmp

    Filesize

    8KB

  • memory/1316-55-0x0000000076851000-0x0000000076853000-memory.dmp

    Filesize

    8KB