Resubmissions

17/02/2024, 13:27

240217-qp27lsfg88 7

17/02/2024, 13:22

240217-qmqqssfc6s 10

Analysis

  • max time kernel
    55s
  • max time network
    36s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    17/02/2024, 13:27

General

  • Target

    2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe

  • Size

    36KB

  • MD5

    0776f0973edab7f367679e0e4763c01c

  • SHA1

    a9a61eebdc28193af7535fc141b74bb4242b9f3f

  • SHA256

    52b02a2558db793cd4fbbf614858899c18e7aa103d3750d786d8bbbaa5c84487

  • SHA512

    2d02670bd96272dbd52f7961867f03f2ff736e1768f56293cd9fd9334e5d18be3e74234a4d23a9d36de8c3adca98ccd9f546d30706c76049a3c771b9e852f8dc

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nbin:bAvJCYOOvbRPDEgXrNekd7l94i3pin

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 40 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-17_0776f0973edab7f367679e0e4763c01c_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2344
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    f92531d116532bf4b4b80d3228a51a02

    SHA1

    2570d4095af83a2815fdc274c545019172c7a989

    SHA256

    4efd3fff4643a3b5a7f3316d1d5f7f94309195c1b32b8aca0ac0bdac6bb87766

    SHA512

    e762b9278bb9ccdef6a103aacfed1ad8babd58da03d1b2cbe2141b0341784e585e727c1d298dd5e055f10608802707903670fe67d826b3123c9de04d71bbf24d

  • C:\Users\Admin\AppData\Local\Temp\Cab52F2.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar5363.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • \Users\Admin\AppData\Local\Temp\demka.exe

    Filesize

    36KB

    MD5

    1f5ace5c55faa846a935c28935832be4

    SHA1

    e867e8268ab298cffdc9832a90e933a0ca32523b

    SHA256

    322759ff2487ec489e5abb132f4d58867322308fe6e744763b0ab000791d6f22

    SHA512

    d25ef5e1c2a796000649354a181b25d67b7906e05e1974389219fafc87b10f1a6fcc9d1711c6e19254293bdc90d3aab5e44704c126fc58b440f9279e297979d2

  • memory/2008-0-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2008-1-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2008-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2152-112-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2152-113-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2344-18-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB