Resubmissions

19-01-2022 16:34

220119-t23wfsbecm 10

25-11-2021 12:37

211125-ptgwssfbhj 8

Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    25-11-2021 12:37

General

  • Target

    74b4d14d2d1af6642d5867eb89c277aa02f5e4ac667d87b5aca380f40eabe1bf.exe

  • Size

    6.5MB

  • MD5

    458c04ae359dbe061aeef0141ee3a564

  • SHA1

    b70b8ac0ebda6a4f3f6628f1c0bd26e2df4a55ec

  • SHA256

    74b4d14d2d1af6642d5867eb89c277aa02f5e4ac667d87b5aca380f40eabe1bf

  • SHA512

    f0f967fce0377ab3b1190d4e288747cdc3df57fc267b6319940d8c867f84b1b9ce4731d28c8b2075971ffc4b105a81a9087ccc7e25e677b9565bd37b9266aa1e

Score
8/10

Malware Config

Signatures

  • 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.

  • 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 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74b4d14d2d1af6642d5867eb89c277aa02f5e4ac667d87b5aca380f40eabe1bf.exe
    "C:\Users\Admin\AppData\Local\Temp\74b4d14d2d1af6642d5867eb89c277aa02f5e4ac667d87b5aca380f40eabe1bf.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\AdoptOpenJDK\OpenJDK Security 11 0.0.1.7\install\AC3E5AF\adv.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\74b4d14d2d1af6642d5867eb89c277aa02f5e4ac667d87b5aca380f40eabe1bf.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1637584660 " AI_EUIMSI=""
      2⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Suspicious use of FindShellTrayWindow
      PID:1536
  • 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:1816
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ADE953E1D012AA03243C51767131F127 C
      2⤵
      • Loads dropped DLL
      PID:1820
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 998AB654CEBADBDCA5A76EE57B564681
      2⤵
      • Loads dropped DLL
      PID:1436
    • C:\Users\Admin\AppData\Roaming\AdoptOpenJDK\OpenJDK Security 11\evreporter.exe
      "C:\Users\Admin\AppData\Roaming\AdoptOpenJDK\OpenJDK Security 11\evreporter.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1540-55-0x0000000075971000-0x0000000075973000-memory.dmp

    Filesize

    8KB

  • memory/1816-58-0x000007FEFC141000-0x000007FEFC143000-memory.dmp

    Filesize

    8KB