Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21-09-2024 04:09

General

  • Target

    ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe

  • Size

    531KB

  • MD5

    ef0aafefa653a36a33a9a8469f1e8159

  • SHA1

    00abdec221e84a67140e2ae239f4c64a9213b211

  • SHA256

    b796ebc23a355b8fbd29552b2ff7142f09617c25a30a33d5a92626f69e337d48

  • SHA512

    bb778a37da1b9b325da9719195830f5e2877d4fbffda74927b8baff5e714dd0c73b3f3b19c567554191bb105779d229a029e2da3f82bc9831a755c2d06c2c72f

  • SSDEEP

    12288:KiTzYG1w0wODUfOg5ZodnvtcZCnRn0LdAA:KiTz/tUfjwnvhnRngA

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail3.dynamail.asia
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Fehm.718907M

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

    Abuse InstallUtil to proxy execution of malicious code.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe"
    1⤵
    • System Binary Proxy Execution: InstallUtil
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    40KB

    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • \Users\Admin\AppData\Local\Temp\b1f92ac9-345d-4ee6-83d6-512dab76f3b9\i.dll

    Filesize

    94KB

    MD5

    14ff402962ad21b78ae0b4c43cd1f194

    SHA1

    f8a510eb26666e875a5bdd1cadad40602763ad72

    SHA256

    fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

    SHA512

    daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

  • memory/2200-0-0x0000000073C0E000-0x0000000073C0F000-memory.dmp

    Filesize

    4KB

  • memory/2200-1-0x0000000000260000-0x00000000002EA000-memory.dmp

    Filesize

    552KB

  • memory/2200-2-0x0000000000230000-0x000000000025C000-memory.dmp

    Filesize

    176KB

  • memory/2200-3-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2200-14-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-28-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-42-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-54-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-68-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-72-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-70-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-66-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-64-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-62-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-60-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-58-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-56-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-52-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-50-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-48-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-46-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-44-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-40-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-38-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-36-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-34-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-32-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-30-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-26-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-24-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-22-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-20-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-18-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-16-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-12-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-11-0x0000000000230000-0x0000000000256000-memory.dmp

    Filesize

    152KB

  • memory/2200-10-0x0000000074620000-0x00000000746A0000-memory.dmp

    Filesize

    512KB

  • memory/2200-191-0x0000000073C0E000-0x0000000073C0F000-memory.dmp

    Filesize

    4KB

  • memory/2200-192-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2200-194-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2200-195-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2200-196-0x00000000005B0000-0x00000000005BC000-memory.dmp

    Filesize

    48KB

  • memory/2200-215-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2948-213-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2948-214-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2948-216-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2948-217-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2948-218-0x0000000073C00000-0x00000000742EE000-memory.dmp

    Filesize

    6.9MB