Analysis

  • max time kernel
    146s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    14/05/2024, 18:53

General

  • Target

    429458b7c5d2dee2eb6bd5025d843f4a_JaffaCakes118.msi

  • Size

    544KB

  • MD5

    429458b7c5d2dee2eb6bd5025d843f4a

  • SHA1

    1baf8a0730cb170463898ac1b92728564a0e29a5

  • SHA256

    e94078928fb1d55b790647c581b0e7f44a10961f0a6f7c6d809cf1681cca9de3

  • SHA512

    77799fa3ec73585b8afbf8a75d937be7de9e0f6719f66d81e1b4d42aff5f28b51a35a6c744d923e1e042be5f17c50f28e776a23076fe550fbcabca5c6f7bd6ae

  • SSDEEP

    12288:qEgIou4TBViseZyEZhsepkrJL61lk1oarFHpZQfJYKZbF6wgs4:qEg7p/ise4epkt641oqDZQdZbrv

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 10 IoCs
  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\429458b7c5d2dee2eb6bd5025d843f4a_JaffaCakes118.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1924
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Windows\Installer\MSI32C6.tmp
      "C:\Windows\Installer\MSI32C6.tmp"
      2⤵
      • Suspicious use of SetThreadContext
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1488
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lxguKQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF5D4.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2912
      • C:\Windows\Installer\MSI32C6.tmp
        "C:\Windows\Installer\MSI32C6.tmp"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2184
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2680
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "000000000000058C" "0000000000000574"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\f7631af.rbs

    Filesize

    663B

    MD5

    0448505657cacf31f423f98bda2e54c0

    SHA1

    e4ca66ece8a0e08dac97dd05435658324c817c9c

    SHA256

    317723f7b85cb50b152ed5111d517f3cdfa58b8cbc9db215228741ec86831d8f

    SHA512

    42b08f728449a4b113f78e9159c4861dd1d4bd97b959f3a0253b2b019d57f7001b2aff8df66aec2164a81514f618f1c51fe63375808bb3d3b949728e253d2aa2

  • C:\Users\Admin\AppData\Local\Temp\tmpF5D4.tmp

    Filesize

    1KB

    MD5

    a08385a8d45598859d4caddf59803fa9

    SHA1

    26d1f4b42bcfbffc20690eddc3ad1a9208260a32

    SHA256

    2d6309f5339eb8e280c6cf11b25fb1921eca5e21de1c7be6ba4c5b878dae0194

    SHA512

    0db278320cf5c9ad1f9e21c36cfcac7d79351850cf86c25f950b6d9db9eef64ffa2e5abc44da84ea0bfca2285a27114ab87016f094c29a3ade6a36624d286d56

  • C:\Windows\Installer\MSI32C6.tmp

    Filesize

    519KB

    MD5

    ce0052028c920e82135a65681564ab22

    SHA1

    217674745fa7ce6b70ed1f8f36d1b93b2c5f6a93

    SHA256

    5b5e16a1ab40d1ce8bf4d0c865df6594b1df6baaa9f8a6aa0dd3819c0855fb42

    SHA512

    cbdd80e605d8728ae18199db614dc5801d380006526ec831d0038adcb39ab3a355f39e721bed8a5a7675619576037d2e0e7723e4d79ded5362ae98c316282c0d

  • memory/1488-12-0x00000000009C0000-0x0000000000A48000-memory.dmp

    Filesize

    544KB

  • memory/1488-13-0x0000000001FE0000-0x0000000002054000-memory.dmp

    Filesize

    464KB

  • memory/1488-20-0x00000000004B0000-0x00000000004BA000-memory.dmp

    Filesize

    40KB

  • memory/2184-32-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/2184-34-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/2184-23-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/2184-30-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/2184-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2184-28-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/2184-25-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/2184-21-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/2184-54-0x0000000000720000-0x000000000072A000-memory.dmp

    Filesize

    40KB

  • memory/2184-55-0x0000000000980000-0x0000000000982000-memory.dmp

    Filesize

    8KB