Analysis

  • max time kernel
    128s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-10-2024 18:36

General

  • Target

    531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe

  • Size

    961KB

  • MD5

    531d5d995233f8d2239f4f56a8e5388e

  • SHA1

    c0eebdb7022757508cce1b0b57b14c36d884f82a

  • SHA256

    d3497f2745d0d081f5e8de1f79e58fab450500d495680438e8dce13fe3f4043a

  • SHA512

    0247e9cab5f6687904c865f5512400f72eecc218b658a3df8e4e316ec3abdbe9babdfac1bb89cdddfa393c74c8b84abbdf663dab89adff2b3ba64cdbb116f819

  • SSDEEP

    24576:V0AcK8CtracGntNgwBevci/utURy7a7O8U:V0Kvar1eki/utjOOR

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1620445910:AAF2v81NoINJsu_XXnpGet1YDm-NxnznaIE/sendDocument

Signatures

  • AgentTesla

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

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • AgentTesla payload 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies system executable filetype association 2 TTPs 1 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 3 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
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Users\Admin\AppData\Local\Temp\3582-490\531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Users\Admin\AppData\Local\Temp\3582-490\531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\531d5d995233f8d2239f4f56a8e5388e_JaffaCakes118.exe

    Filesize

    920KB

    MD5

    3d4b1329fdcbc4efa3cebf3e0511a436

    SHA1

    8c0a7e98b0f7a3a0bde765f84957be58604e982e

    SHA256

    1c65db2ba951b557c38be3177040b36f25a7f586dbabe2f62ff1383e95c450ec

    SHA512

    43f291367e4356c6507a26d3d49af3c28cadc3bc73b49a78eb261cade17360eee014f539d095730a0bcca8cb7debe1be1e78f10e68ecbf4655962443cfa55d84

  • memory/584-108-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/584-96-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/584-100-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/584-102-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/584-104-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/584-105-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/584-107-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/584-98-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2076-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2076-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2796-94-0x0000000000AC0000-0x0000000000AFE000-memory.dmp

    Filesize

    248KB

  • memory/2796-93-0x0000000005040000-0x00000000050D8000-memory.dmp

    Filesize

    608KB

  • memory/2796-12-0x00000000748EE000-0x00000000748EF000-memory.dmp

    Filesize

    4KB

  • memory/2796-90-0x00000000748E0000-0x0000000074FCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2796-14-0x00000000748E0000-0x0000000074FCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2796-88-0x00000000748EE000-0x00000000748EF000-memory.dmp

    Filesize

    4KB

  • memory/2796-35-0x0000000000310000-0x0000000000322000-memory.dmp

    Filesize

    72KB

  • memory/2796-13-0x0000000000E50000-0x0000000000F3C000-memory.dmp

    Filesize

    944KB

  • memory/2796-109-0x00000000748E0000-0x0000000074FCE000-memory.dmp

    Filesize

    6.9MB