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 19:33

General

  • Target

    4774a2b96833f1a11b728e0eb12a68c127860ea23800ec960f601b5419c51caf.exe

  • Size

    208KB

  • MD5

    1cfb5b010240ddc49499e1e66ebad500

  • SHA1

    7d31af474970121af98c3bd3249e529a61db124c

  • SHA256

    4774a2b96833f1a11b728e0eb12a68c127860ea23800ec960f601b5419c51caf

  • SHA512

    88a7ffc672dbbbb244398a9125c0df78156f96c227ce06d111fb11b3fbf301789c88a5003f0818f26a59a7d997d788bcbf372674d4b0c81074e3183c0f2905df

  • SSDEEP

    1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 16 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\4774a2b96833f1a11b728e0eb12a68c127860ea23800ec960f601b5419c51caf.exe
    "C:\Users\Admin\AppData\Local\Temp\4774a2b96833f1a11b728e0eb12a68c127860ea23800ec960f601b5419c51caf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Users\Admin\AppData\Local\Temp\4774a2b96833f1a11b728e0eb12a68c127860ea23800ec960f601b5419c51caf.exe
      "C:\Users\Admin\AppData\Local\Temp\4774a2b96833f1a11b728e0eb12a68c127860ea23800ec960f601b5419c51caf.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\WTSWJ.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2036
        • 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:1740
      • 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:1488
        • 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:1036
        • 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:536

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    141B

    MD5

    e83a2e0b3c1e03dfb96ffd9924117a45

    SHA1

    27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

    SHA256

    655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

    SHA512

    5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

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

    208KB

    MD5

    baa0aec5d17d7011b2c051d026fac4c1

    SHA1

    04b7f7e4b8343eeecf264c246d1611658144933e

    SHA256

    e03b3b551137215344fb4f0013582cc286c33c7c2e64b7b14401217671a74c87

    SHA512

    094cde17be6d524b4288c9a084656ba7b2d7d73cfb4a8cd608501b5efed6d5e201c852c29673686784e189bb12236e8fe6419a033cc395a405ca6336ffa20589

  • memory/536-121-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/536-118-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/536-137-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/536-133-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/536-132-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/536-129-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/536-124-0x0000000000476940-mapping.dmp
  • memory/536-123-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/536-135-0x00000000741F1000-0x00000000741F3000-memory.dmp
    Filesize

    8KB

  • memory/536-116-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1036-114-0x00000000004085D0-mapping.dmp
  • memory/1036-138-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1036-134-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-85-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-86-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-82-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-87-0x00000000004085D0-mapping.dmp
  • memory/1192-126-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-83-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-89-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-90-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-93-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1192-94-0x0000000074C91000-0x0000000074C93000-memory.dmp
    Filesize

    8KB

  • memory/1488-106-0x000000000051D000-0x0000000000532000-memory.dmp
    Filesize

    84KB

  • memory/1488-102-0x0000000000000000-mapping.dmp
  • memory/1740-97-0x0000000000000000-mapping.dmp
  • memory/2036-95-0x0000000000000000-mapping.dmp