Analysis

  • max time kernel
    149s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:32

General

  • Target

    cff1a0eb4d9422886aed9827a0613e58fbd7c732152a3bdaa005e4c931547a28.exe

  • Size

    208KB

  • MD5

    0b2c9c9ddb7befef10b7696664197ce0

  • SHA1

    94ed8f9efc4ec9323a521a8f04a2f7c188b151b0

  • SHA256

    cff1a0eb4d9422886aed9827a0613e58fbd7c732152a3bdaa005e4c931547a28

  • SHA512

    8d80d350607d99350ddf9972578a2a68c628935d2663d8d51fa56eeed0694aeae46c346373b194c0897165251a917e20cb3f0165ff7c366479aa39b97d7b7ab1

  • SSDEEP

    1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 15 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cff1a0eb4d9422886aed9827a0613e58fbd7c732152a3bdaa005e4c931547a28.exe
    "C:\Users\Admin\AppData\Local\Temp\cff1a0eb4d9422886aed9827a0613e58fbd7c732152a3bdaa005e4c931547a28.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Users\Admin\AppData\Local\Temp\cff1a0eb4d9422886aed9827a0613e58fbd7c732152a3bdaa005e4c931547a28.exe
      "C:\Users\Admin\AppData\Local\Temp\cff1a0eb4d9422886aed9827a0613e58fbd7c732152a3bdaa005e4c931547a28.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\EJYAX.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1396
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svhust" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe" /f
          4⤵
          • Adds Run key to start application
          PID:960
      • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
        "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:668
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1488
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Suspicious use of FindShellTrayWindow
          PID:940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\EJYAX.bat
    Filesize

    141B

    MD5

    e83a2e0b3c1e03dfb96ffd9924117a45

    SHA1

    27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

    SHA256

    655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

    SHA512

    5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    3e5f6e6562176311eca043b10149736c

    SHA1

    e72bf5b262a930046a99395b82de5b7b3a7d0bdd

    SHA256

    21dda277196b80d6f587f1826905f7ca64bf48da8a141257f8b2875d53d83a71

    SHA512

    878525c9c23276f2185aefda45804cb0ceac81772e40a5c76dce401a9f77575237c5c168281c8825a6eed83eb06e7bf064244ab282a83d691e4578254d5cd333

  • memory/668-82-0x00000000002AD000-0x00000000002C2000-memory.dmp
    Filesize

    84KB

  • memory/668-78-0x0000000000000000-mapping.dmp
  • memory/940-100-0x0000000000476940-mapping.dmp
  • memory/940-107-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/940-109-0x0000000074531000-0x0000000074533000-memory.dmp
    Filesize

    8KB

  • memory/940-110-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/940-108-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/940-92-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/940-99-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/940-97-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/940-94-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/960-73-0x0000000000000000-mapping.dmp
  • memory/1076-56-0x000000000055D000-0x0000000000573000-memory.dmp
    Filesize

    88KB

  • memory/1396-71-0x0000000000000000-mapping.dmp
  • memory/1488-90-0x00000000004085D0-mapping.dmp
  • memory/1488-111-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1488-113-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-59-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-66-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-61-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-58-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-102-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-62-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-63-0x00000000004085D0-mapping.dmp
  • memory/1672-65-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-70-0x0000000075C51000-0x0000000075C53000-memory.dmp
    Filesize

    8KB

  • memory/1672-69-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB