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Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 17:01

General

  • Target

    06a342da8fe87ea74a7b5c3e945212d2_JaffaCakes118.exe

  • Size

    1.4MB

  • MD5

    06a342da8fe87ea74a7b5c3e945212d2

  • SHA1

    01e94d38c651de33c1698da25717c05e837c1251

  • SHA256

    f53b6d36630cd089f95cc2127cb9c564068512d6a4a4eaec1fe95e25f7f32d1a

  • SHA512

    715003570d39f3d593d1319b8e8513b865bb8738a2cf216242b81df04698a3efacb68ce465dc05e2eab491e4194df0095855af4c05851231a996d92a67f19fb5

  • SSDEEP

    12288:cSz96nx/5heyeqkiML46rZ7aT6qOLF4SijBU4uI1n+oT2fXJqWgSHRzjlM+DWLWO:cSx6zJV6rF/zLF1ijQINT2fX/U

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    xxxlahot2

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\06a342da8fe87ea74a7b5c3e945212d2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\06a342da8fe87ea74a7b5c3e945212d2_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2560
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RzLyBv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A16.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4556
    • C:\Users\Admin\AppData\Local\Temp\06a342da8fe87ea74a7b5c3e945212d2_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\06a342da8fe87ea74a7b5c3e945212d2_JaffaCakes118.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1380

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\06a342da8fe87ea74a7b5c3e945212d2_JaffaCakes118.exe.log

    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

  • C:\Users\Admin\AppData\Local\Temp\tmp3A16.tmp

    Filesize

    1KB

    MD5

    849c97f7d26c9fa09d0b568d3ece7bb8

    SHA1

    5da87b17b0be48ad88feb12debb415187376c099

    SHA256

    f9bb5bc434e86c8e5fbc4d701cbb3a0ff4589d4bed550a7920ea1ff539b50dd4

    SHA512

    c8f4b27250d050971741331d257ac30a24a11c5e1614c50ff9a9ac0e75c289e91a748a2c90218ae5a38676de87369adceaec70364b5f0df6d8e40b601ffc9ac9

  • memory/1380-30-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1380-29-0x00000000065F0000-0x0000000006640000-memory.dmp

    Filesize

    320KB

  • memory/1380-27-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1380-26-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1380-25-0x0000000006170000-0x00000000061D6000-memory.dmp

    Filesize

    408KB

  • memory/1380-24-0x00000000060C0000-0x00000000060D8000-memory.dmp

    Filesize

    96KB

  • memory/1380-23-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1380-22-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1380-18-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2560-7-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2560-6-0x00000000053F0000-0x0000000005446000-memory.dmp

    Filesize

    344KB

  • memory/2560-11-0x0000000006070000-0x0000000006112000-memory.dmp

    Filesize

    648KB

  • memory/2560-10-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2560-9-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

    Filesize

    4KB

  • memory/2560-8-0x0000000005140000-0x000000000515E000-memory.dmp

    Filesize

    120KB

  • memory/2560-21-0x0000000074E00000-0x00000000755B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2560-12-0x0000000005E60000-0x0000000005E9C000-memory.dmp

    Filesize

    240KB

  • memory/2560-0-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

    Filesize

    4KB

  • memory/2560-5-0x0000000005110000-0x000000000511A000-memory.dmp

    Filesize

    40KB

  • memory/2560-4-0x0000000005170000-0x0000000005202000-memory.dmp

    Filesize

    584KB

  • memory/2560-3-0x0000000005680000-0x0000000005C24000-memory.dmp

    Filesize

    5.6MB

  • memory/2560-2-0x0000000005030000-0x00000000050CC000-memory.dmp

    Filesize

    624KB

  • memory/2560-1-0x0000000000560000-0x00000000006C8000-memory.dmp

    Filesize

    1.4MB