Analysis

  • max time kernel
    159s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    16-10-2022 00:00

General

  • Target

    9fbb7fea0cc870e5d7ad1d858750cdbee54e3e1f15aba0fb7e88228bb1387a99.exe

  • Size

    356KB

  • MD5

    e65a231cdeb9acfd97366f059df074ab

  • SHA1

    a50852d484f2113ec6ee05d8eef6c92136105fa0

  • SHA256

    9fbb7fea0cc870e5d7ad1d858750cdbee54e3e1f15aba0fb7e88228bb1387a99

  • SHA512

    3ab2d7bf433a1aaca091702fca02baec6ccd9337426763377076b7d3ef3b742e8bc3c9b0744b51751e35fece84e2d0612615161bf8c1207ab971d2ec50e22799

  • SSDEEP

    6144:e98L598L598L598BEbS89TBqzyfAa6rtrI3bA+bS:lKKut89Tszm

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9fbb7fea0cc870e5d7ad1d858750cdbee54e3e1f15aba0fb7e88228bb1387a99.exe
    "C:\Users\Admin\AppData\Local\Temp\9fbb7fea0cc870e5d7ad1d858750cdbee54e3e1f15aba0fb7e88228bb1387a99.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet && wmic shadowcopy delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1960
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1936
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C echo ^[autorun^] >autorun.inf
      2⤵
      • Drops autorun.inf file
      PID:1784
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C echo ^open^=KasperskyScan^.exe >>autorun.inf
      2⤵
      • Drops autorun.inf file
      PID:316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C echo ^execute=^KasperskyScan^.exe >>autorun.inf
      2⤵
      • Drops autorun.inf file
      PID:632
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\autorun.inf

    Filesize

    12B

    MD5

    7b74b59eb512d0797b7f12bf5176b8c4

    SHA1

    1ff3e7eea7883a65abf79353a6039dfcd518f4da

    SHA256

    50c692a2d0e822df720c66654c601a49d1d23bbe0c329624c02a97564a738a27

    SHA512

    3f46b9cddad177a21ba6b52928c739821aa108ab92da4c907a8808689782ce3fa2036381912b267b02c0daabd992f11cde0ea867082d8d336e53d8ec79435a29

  • C:\Users\Admin\AppData\Local\Temp\autorun.inf

    Filesize

    37B

    MD5

    3883f693b2911e7b9cabaf1d89601ebd

    SHA1

    a733bc5b66e5b7beb1ab54ce430ff16cdb935fcb

    SHA256

    747ea7ec54ee0bc9b637867de0c451df65c840f757988f5a3b6e3fe6c73ab1b6

    SHA512

    41fb0555004f392f2c67fd7675d2aea2a7a28a4f51d92237fdaff2d60624c559a5401335887b66f49a721dff669f8f9bd150fde0afe0845eb366309ca1088a98

  • C:\Users\Admin\AppData\Local\Temp\autorun.inf

    Filesize

    65B

    MD5

    fbefa88e6b51c05dd63d97dfdbeb3589

    SHA1

    67e09918d878c6615befab5dc9194439027f268d

    SHA256

    3861acedffd29452d2fdb96728f7347652bde9353915d3873a7414843f49b8b1

    SHA512

    58f8c1a64f2eb21be7b96db335d1ade0ce0878566a8386b3689b650132ca28e14761b20fdfe50f2af9915dff2bdd3a5b07f6f3ed082e4e6998ec5f0cd052f12f

  • memory/316-59-0x0000000000000000-mapping.dmp

  • memory/632-61-0x0000000000000000-mapping.dmp

  • memory/1752-54-0x00000000012C0000-0x00000000012C8000-memory.dmp

    Filesize

    32KB

  • memory/1752-55-0x0000000076681000-0x0000000076683000-memory.dmp

    Filesize

    8KB

  • memory/1784-58-0x0000000000000000-mapping.dmp

  • memory/1936-57-0x0000000000000000-mapping.dmp

  • memory/1960-56-0x0000000000000000-mapping.dmp