Analysis

  • max time kernel
    134s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    25-01-2021 14:34

General

  • Target

    WbGKi8E5OE4eCFG.exe

  • Size

    479KB

  • MD5

    7f6536d5e388184f0463a7ef1082794c

  • SHA1

    366cb9bb3df0ccc33321e76bc35b1db10f92f8ca

  • SHA256

    beba13ab986b15355a6130665e717436f42c6eeed927b614217d42f5242a83b1

  • SHA512

    37f53cf4c091596f42756dc1d54cc10a67b439fa58ab596ecb6ff5ef4ab6aa37ca29f0f44cf11fe49f28428e9842c03b4ac4210b3802c18d9bf2b368b83426d2

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cefortem.cat
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Vft284Rpyn

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WbGKi8E5OE4eCFG.exe
    "C:\Users\Admin\AppData\Local\Temp\WbGKi8E5OE4eCFG.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Users\Admin\AppData\Local\Temp\WbGKi8E5OE4eCFG.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\WbGKi8E5OE4eCFG.exe.log

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/576-12-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/576-22-0x0000000005CB0000-0x0000000005CB1000-memory.dmp

    Filesize

    4KB

  • memory/576-21-0x0000000005510000-0x0000000005511000-memory.dmp

    Filesize

    4KB

  • memory/576-20-0x0000000005060000-0x0000000005061000-memory.dmp

    Filesize

    4KB

  • memory/576-15-0x0000000073190000-0x000000007387E000-memory.dmp

    Filesize

    6.9MB

  • memory/576-13-0x00000000004374DE-mapping.dmp

  • memory/636-7-0x0000000004D20000-0x0000000004D21000-memory.dmp

    Filesize

    4KB

  • memory/636-11-0x0000000006F50000-0x0000000006FAF000-memory.dmp

    Filesize

    380KB

  • memory/636-10-0x0000000006FC0000-0x0000000006FC1000-memory.dmp

    Filesize

    4KB

  • memory/636-9-0x0000000004DB0000-0x0000000004DBE000-memory.dmp

    Filesize

    56KB

  • memory/636-8-0x0000000004B50000-0x0000000004B51000-memory.dmp

    Filesize

    4KB

  • memory/636-2-0x0000000073190000-0x000000007387E000-memory.dmp

    Filesize

    6.9MB

  • memory/636-6-0x0000000004B90000-0x0000000004B91000-memory.dmp

    Filesize

    4KB

  • memory/636-5-0x0000000005090000-0x0000000005091000-memory.dmp

    Filesize

    4KB

  • memory/636-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB