Analysis

  • max time kernel
    146s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    15-10-2022 00:02

General

  • Target

    3504d330003d44ef689f174d10f74f8e3eabcc30779a645005a888c2fad1e622.exe

  • Size

    2.4MB

  • MD5

    05a73e7a382558505bd23e3644d4c46a

  • SHA1

    5c7830fe5ee7879c5eed6626350635c0a09c1628

  • SHA256

    3504d330003d44ef689f174d10f74f8e3eabcc30779a645005a888c2fad1e622

  • SHA512

    7fc391325328e9485b40ff490588eafe8fb54b581b3c651cb462f06af377e376cd8c7337136254d4155f23c5ca4b3338a91f8adbcd7ee068aad1ec646044215d

  • SSDEEP

    49152:JqcQFTIOZeqWm23GtLQzXlTnOf9p3vTGzgwpR:4cQUFmD8TUf3xm

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\3504d330003d44ef689f174d10f74f8e3eabcc30779a645005a888c2fad1e622.exe
    "C:\Users\Admin\AppData\Local\Temp\3504d330003d44ef689f174d10f74f8e3eabcc30779a645005a888c2fad1e622.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1552
    • 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:904
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1280
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C echo ^[autorun^] >autorun.inf
      2⤵
      • Drops autorun.inf file
      PID:2016
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C echo ^open^=KasperskyScan^.exe >>autorun.inf
      2⤵
      • Drops autorun.inf file
      PID:1940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C echo ^execute=^KasperskyScan^.exe >>autorun.inf
      2⤵
      • Drops autorun.inf file
      PID:836
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • 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

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

    Filesize

    65B

    MD5

    fbefa88e6b51c05dd63d97dfdbeb3589

    SHA1

    67e09918d878c6615befab5dc9194439027f268d

    SHA256

    3861acedffd29452d2fdb96728f7347652bde9353915d3873a7414843f49b8b1

    SHA512

    58f8c1a64f2eb21be7b96db335d1ade0ce0878566a8386b3689b650132ca28e14761b20fdfe50f2af9915dff2bdd3a5b07f6f3ed082e4e6998ec5f0cd052f12f

  • memory/836-61-0x0000000000000000-mapping.dmp

  • memory/904-56-0x0000000000000000-mapping.dmp

  • memory/1280-57-0x0000000000000000-mapping.dmp

  • memory/1552-54-0x00000000009D0000-0x00000000009D8000-memory.dmp

    Filesize

    32KB

  • memory/1552-55-0x0000000075681000-0x0000000075683000-memory.dmp

    Filesize

    8KB

  • memory/1940-59-0x0000000000000000-mapping.dmp

  • memory/2016-58-0x0000000000000000-mapping.dmp