Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 20:59

General

  • Target

    22fbecc5ab6ce99c45f913ff7185fb98270e50a8aacb4ffce26f4cda550418ac.exe

  • Size

    1.4MB

  • MD5

    6e7c2a5fa3bc45d162bd878967ece57a

  • SHA1

    66f0c1fd768802239421273aa21df1f2eb29b5ca

  • SHA256

    22fbecc5ab6ce99c45f913ff7185fb98270e50a8aacb4ffce26f4cda550418ac

  • SHA512

    0ee9c9aa1f2044d0ad7f7881dc361ce6f9aba86e78e70d75ee61aede7a9e60882deeda9aa53f5c49bba2cecddfb979cdb4fce9a7f693b991c8a700da5f5b4a5c

  • SSDEEP

    24576:JlOvZbETSvHKQ0Ewcs73kY3PPQ2sqoPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPq:JsRbEyAjkY3PPNoPPPPPPPPPPPPPPPPS

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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\22fbecc5ab6ce99c45f913ff7185fb98270e50a8aacb4ffce26f4cda550418ac.exe
    "C:\Users\Admin\AppData\Local\Temp\22fbecc5ab6ce99c45f913ff7185fb98270e50a8aacb4ffce26f4cda550418ac.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:1508
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x418
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1332

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/1508-54-0x0000000075451000-0x0000000075453000-memory.dmp
    Filesize

    8KB