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Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2022, 21:30

General

  • Target

    8afd7030956cb386cb839002f99a47e8278dd6347b7661c578e722d07d2304e8.exe

  • Size

    1.1MB

  • MD5

    df9429e6d8cba999535e34a945b847ef

  • SHA1

    262d84caf14b46c76f91aa6c1ed1b3b5013a7d25

  • SHA256

    8afd7030956cb386cb839002f99a47e8278dd6347b7661c578e722d07d2304e8

  • SHA512

    a9484bda3fbed8ff84a95be1f25f17b79d57ffe434b3f1e4594d75bdcfdeaa8bc8a0f705175be431357201fa9c1a738fb55a76befe771577c53fc211487699c6

  • SSDEEP

    24576:XOIFnM1rGoN1PSWr47HfgXt6b3sCj8nROEbapxS/TRL4cYUuY:+IUlGWrI/g96rskARokNYM

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8afd7030956cb386cb839002f99a47e8278dd6347b7661c578e722d07d2304e8.exe
    "C:\Users\Admin\AppData\Local\Temp\8afd7030956cb386cb839002f99a47e8278dd6347b7661c578e722d07d2304e8.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Windows\4080\Info\explorer.exe
      C:\Windows\4080\Info\explorer.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\4080\taskmgr.exe
        C:\Windows\4080\taskmgr.exe
        3⤵
        • Executes dropped EXE
        PID:3068

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\4080\Info\explorer.exe

    Filesize

    605KB

    MD5

    8a0b19899cddf09f2385c798674a25ce

    SHA1

    979a65d873b89896c79c4f3e7a676402d13c9d29

    SHA256

    bc32f193aa6d1ae528308066801908dcd7a26e0f8c4ac7079e78c6a3125344a8

    SHA512

    dc5fb3af9faa99b2e9004941c7bd52a27caaa485e8ca22202860d1474e4bca1fadc7c71b4db64a0cb16eb0cee29c89fc4a92e75f3c4b208e1de623f98261e2eb

  • C:\Windows\4080\Info\explorer.exe

    Filesize

    605KB

    MD5

    8a0b19899cddf09f2385c798674a25ce

    SHA1

    979a65d873b89896c79c4f3e7a676402d13c9d29

    SHA256

    bc32f193aa6d1ae528308066801908dcd7a26e0f8c4ac7079e78c6a3125344a8

    SHA512

    dc5fb3af9faa99b2e9004941c7bd52a27caaa485e8ca22202860d1474e4bca1fadc7c71b4db64a0cb16eb0cee29c89fc4a92e75f3c4b208e1de623f98261e2eb

  • C:\Windows\4080\taskmgr.exe

    Filesize

    605KB

    MD5

    8a0b19899cddf09f2385c798674a25ce

    SHA1

    979a65d873b89896c79c4f3e7a676402d13c9d29

    SHA256

    bc32f193aa6d1ae528308066801908dcd7a26e0f8c4ac7079e78c6a3125344a8

    SHA512

    dc5fb3af9faa99b2e9004941c7bd52a27caaa485e8ca22202860d1474e4bca1fadc7c71b4db64a0cb16eb0cee29c89fc4a92e75f3c4b208e1de623f98261e2eb

  • C:\Windows\4080\taskmgr.exe

    Filesize

    605KB

    MD5

    8a0b19899cddf09f2385c798674a25ce

    SHA1

    979a65d873b89896c79c4f3e7a676402d13c9d29

    SHA256

    bc32f193aa6d1ae528308066801908dcd7a26e0f8c4ac7079e78c6a3125344a8

    SHA512

    dc5fb3af9faa99b2e9004941c7bd52a27caaa485e8ca22202860d1474e4bca1fadc7c71b4db64a0cb16eb0cee29c89fc4a92e75f3c4b208e1de623f98261e2eb

  • memory/1448-137-0x0000000000400000-0x0000000000525000-memory.dmp

    Filesize

    1.1MB

  • memory/1448-142-0x0000000000400000-0x0000000000525000-memory.dmp

    Filesize

    1.1MB

  • memory/2564-132-0x0000000000400000-0x00000000005E2000-memory.dmp

    Filesize

    1.9MB

  • memory/2564-136-0x0000000000400000-0x00000000005E2000-memory.dmp

    Filesize

    1.9MB

  • memory/3068-141-0x0000000000400000-0x0000000000525000-memory.dmp

    Filesize

    1.1MB