Analysis

  • max time kernel
    205s
  • max time network
    91s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:33

General

  • Target

    530b9dcf381d80eadf10753518aea6b74d6731643267807cf43850a47fadd4ef.exe

  • Size

    208KB

  • MD5

    10081c32379bf2ecf19bcdadced9a4c0

  • SHA1

    e98f00551b19ec2b9224bee5b979092892eaf012

  • SHA256

    530b9dcf381d80eadf10753518aea6b74d6731643267807cf43850a47fadd4ef

  • SHA512

    893db1e260aa66bb002301a5464de9a818cd88358860e308d5257b435121e591edc4262ee2f62a1cf45f608435db000a4cf3b734eca87a45fe2a6dbdf19f1d50

  • SSDEEP

    1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 14 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\530b9dcf381d80eadf10753518aea6b74d6731643267807cf43850a47fadd4ef.exe
    "C:\Users\Admin\AppData\Local\Temp\530b9dcf381d80eadf10753518aea6b74d6731643267807cf43850a47fadd4ef.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Users\Admin\AppData\Local\Temp\530b9dcf381d80eadf10753518aea6b74d6731643267807cf43850a47fadd4ef.exe
      "C:\Users\Admin\AppData\Local\Temp\530b9dcf381d80eadf10753518aea6b74d6731643267807cf43850a47fadd4ef.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:276
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\VUYLB.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1772
        • 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:1684
      • 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:1812
        • 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:816
        • 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:1640

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    141B

    MD5

    e83a2e0b3c1e03dfb96ffd9924117a45

    SHA1

    27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

    SHA256

    655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

    SHA512

    5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

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

    208KB

    MD5

    1f98782cabc5527620493743aad149df

    SHA1

    31beb852fc6d9a3f8cb373c76a672f5a1e28ab8a

    SHA256

    f06bb378072161091b1b64c909244038abfce7deede82db2615deab17ee6e26c

    SHA512

    5bec413901c037c9f91a8b43bd0ee49fab6561323a543fb619694ba50f401fbf0eaf589fa3abe431225ca1854941cdaa239ba22482859ef0e0051828ea5cb4bc

  • memory/276-69-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/276-59-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/276-70-0x0000000075BA1000-0x0000000075BA3000-memory.dmp
    Filesize

    8KB

  • memory/276-58-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/276-102-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/276-61-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/276-66-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/276-65-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/276-63-0x00000000004085D0-mapping.dmp
  • memory/276-62-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/816-112-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/816-90-0x00000000004085D0-mapping.dmp
  • memory/1452-56-0x00000000008DD000-0x00000000008F3000-memory.dmp
    Filesize

    88KB

  • memory/1640-98-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1640-95-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1640-93-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1640-99-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1640-100-0x0000000000476940-mapping.dmp
  • memory/1640-107-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1640-108-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1640-109-0x0000000074DB1000-0x0000000074DB3000-memory.dmp
    Filesize

    8KB

  • memory/1640-110-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1684-73-0x0000000000000000-mapping.dmp
  • memory/1772-71-0x0000000000000000-mapping.dmp
  • memory/1812-82-0x00000000005BD000-0x00000000005D2000-memory.dmp
    Filesize

    84KB

  • memory/1812-78-0x0000000000000000-mapping.dmp