Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    15-05-2024 22:05

General

  • Target

    5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe

  • Size

    117KB

  • MD5

    a8e828a136789222fda0009748ad8325

  • SHA1

    134aae25a885b5c92cc8003ad44c8cc82fe34507

  • SHA256

    5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538

  • SHA512

    f13865fe5bf23860e591fd42a230dc844ded17ec726459e445823437519fcb567959e067dcb6b87c8712120d79718d899f3531fec63ee94dde15c477620da9ab

  • SSDEEP

    1536:aJUGCqveEeXdTeG4wu6oQuwEhQQWKXJR721rSTdk/cpAKdlaKrorkgA55i:aHFveEyTAK7VKXXS1GT7AKzaKrtP55i

Malware Config

Signatures

  • Detects executables containing base64 encoded User Agent 7 IoCs
  • Blocklisted process makes network request 10 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe
    "C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&c:\joibl.exe "C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:1664
      • \??\c:\joibl.exe
        c:\joibl.exe "C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1812
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\zgaby\mczipwj.dll",AbortProc c:\joibl.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\joibl.exe

    Filesize

    117KB

    MD5

    5bacbd25abc7682abde7ba93c8d5fdb1

    SHA1

    e1c5466d0ba2e35ac747e297591de73ee51c2b7b

    SHA256

    ce62402190dd72a342781a1612bf9d15aa2547f166f054f048d08db307275288

    SHA512

    71801d05abc4d76af0e62076da5f510c292157a4b580cf6624515c402f85ec77f349ccff1bc06bd32f0461ac242775e1dff5f792fd294fe81eb24492a5074e96

  • \??\c:\zgaby\mczipwj.dll

    Filesize

    87KB

    MD5

    a2c2137ff7abf6be6bcae4252c394a69

    SHA1

    07b402104df563f9486c2eef975fee70f65a5145

    SHA256

    37ab4b7ee8f6b61c3854af4ed4676fd0d69f0260fb1296ad75e57aa08e1eeb03

    SHA512

    5d05ed7c55bee8f41502acaea3d41fcf4421ad641d43f0b97b4cdc8fe584983da7712c561a53b708e88391df7929914746115700ae733155418693bcec6989a9

  • memory/1812-6-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1812-8-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2484-2-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2484-0-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2708-15-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-14-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-16-0x0000000010033000-0x0000000010034000-memory.dmp

    Filesize

    4KB

  • memory/2708-17-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-19-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-18-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-20-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-22-0x0000000010033000-0x0000000010034000-memory.dmp

    Filesize

    4KB

  • memory/2708-25-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-26-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2708-27-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/3032-5-0x0000000000170000-0x0000000000198000-memory.dmp

    Filesize

    160KB