Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08-11-2022 21:48

General

  • Target

    bfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe

  • Size

    829KB

  • MD5

    0b835d9a77cd422b7e5914c8b964e3a0

  • SHA1

    3d06fecc6e7d428d23a52ac487d2f3616f38174c

  • SHA256

    bfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3

  • SHA512

    5db0b80abe7f2bed42f32f96b5608228c76f53b9a2e9cb63b01bce2912bfbd82de441a9643d79da54207f8ec4386c0c0b6018020db0c375f4d556bb6458023ee

  • SSDEEP

    12288:R2oyM3bYl9sGKVCQVW5Y24coyuWRzQtL+4vl5f1MLUQDkZbdv/fcqjySA5t8MQ2p:R+M0laGxruWxQh+1UQDkZt/EExMFp

Malware Config

Signatures

  • joker

    Joker is an Android malware that targets billing and SMS fraud.

  • ASPack v2.12-2.42 2 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 26 IoCs
  • Modifies system certificate store 2 TTPs 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe
    "C:\Users\Admin\AppData\Local\Temp\bfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe"
    1⤵
    • Loads dropped DLL
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Users\Admin\AppData\Local\Temp\copybfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe
      "C:\Users\Admin\AppData\Local\Temp\copybfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe" C:\Users\Admin\AppData\Local\Temp\copybfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1704
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://jc.110160.com/ad.htm
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1388
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1388 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        PID:1172
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x4cc
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1676

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\copybfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe

    Filesize

    829KB

    MD5

    0b835d9a77cd422b7e5914c8b964e3a0

    SHA1

    3d06fecc6e7d428d23a52ac487d2f3616f38174c

    SHA256

    bfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3

    SHA512

    5db0b80abe7f2bed42f32f96b5608228c76f53b9a2e9cb63b01bce2912bfbd82de441a9643d79da54207f8ec4386c0c0b6018020db0c375f4d556bb6458023ee

  • \Users\Admin\AppData\Local\Temp\copybfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3.exe

    Filesize

    829KB

    MD5

    0b835d9a77cd422b7e5914c8b964e3a0

    SHA1

    3d06fecc6e7d428d23a52ac487d2f3616f38174c

    SHA256

    bfdfd015cadb203cfb8d76017e040614100c322cb70791df53be2faef1aef5e3

    SHA512

    5db0b80abe7f2bed42f32f96b5608228c76f53b9a2e9cb63b01bce2912bfbd82de441a9643d79da54207f8ec4386c0c0b6018020db0c375f4d556bb6458023ee

  • memory/1704-61-0x0000000000400000-0x0000000000681000-memory.dmp

    Filesize

    2.5MB

  • memory/1704-80-0x0000000000400000-0x0000000000681000-memory.dmp

    Filesize

    2.5MB

  • memory/1896-54-0x0000000075201000-0x0000000075203000-memory.dmp

    Filesize

    8KB

  • memory/1896-55-0x0000000000400000-0x0000000000681000-memory.dmp

    Filesize

    2.5MB

  • memory/1896-60-0x0000000004FC0000-0x0000000005241000-memory.dmp

    Filesize

    2.5MB

  • memory/1896-62-0x0000000005520000-0x0000000005530000-memory.dmp

    Filesize

    64KB

  • memory/1896-78-0x0000000000400000-0x0000000000681000-memory.dmp

    Filesize

    2.5MB

  • memory/1896-79-0x0000000004FC0000-0x0000000005241000-memory.dmp

    Filesize

    2.5MB