Analysis

  • max time kernel
    120s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 01:49

General

  • Target

    38ca74e6c53f8662c27fce4c7e33ea8cf36e30d3d4a72cfaa53888401c3461b0.exe

  • Size

    668KB

  • MD5

    5df6381a3558d1566a86d05e9e576fb0

  • SHA1

    494138abc7678d541943af13a1ce1316fb3c344a

  • SHA256

    38ca74e6c53f8662c27fce4c7e33ea8cf36e30d3d4a72cfaa53888401c3461b0

  • SHA512

    d647aac6668e1ac0988ccd5924f6fba325decb9bc753c6508ed8d428c3a47e73f374d4aa04dfa8ce1947673ac584bdb4bf1cc0ae98ad2a53597a745bec116894

  • SSDEEP

    12288:t3L5SdSM6sXkviIaNINeBzYasamEIOno+rK+4w7vv:t18L+iIaON+Ya3zsu3

Malware Config

Signatures

  • joker

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38ca74e6c53f8662c27fce4c7e33ea8cf36e30d3d4a72cfaa53888401c3461b0.exe
    "C:\Users\Admin\AppData\Local\Temp\38ca74e6c53f8662c27fce4c7e33ea8cf36e30d3d4a72cfaa53888401c3461b0.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:832
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x52c
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:544

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/832-54-0x0000000075921000-0x0000000075923000-memory.dmp
    Filesize

    8KB