Analysis

  • max time kernel
    133s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    21-01-2021 15:47

General

  • Target

    jKiL1mzTAVltJ30.exe

  • Size

    1.1MB

  • MD5

    75e6d9d24a6366383f3315536f9ee1a3

  • SHA1

    efaf4af7a2ffb745d2fb23206d1be9eef8c3bd85

  • SHA256

    02092b1f69598ecf3398e09437397c728fc452279d609d934e6dd022ec2a214c

  • SHA512

    7f55b1000aecc8113747bd3b3463a346f1cae38cbf2cdd5e9770c0c3a0c5ac34edf168a195d610ac13b771e5e817df7240a0cd7a3c3a2afc751d64bc88c441a3

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cefortem.cat
  • Port:
    587
  • Username:
    presidencia@cefortem.cat
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jKiL1mzTAVltJ30.exe
    "C:\Users\Admin\AppData\Local\Temp\jKiL1mzTAVltJ30.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:504
    • C:\Users\Admin\AppData\Local\Temp\jKiL1mzTAVltJ30.exe
      "{path}"
      2⤵
        PID:2896
      • C:\Users\Admin\AppData\Local\Temp\jKiL1mzTAVltJ30.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2044

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\jKiL1mzTAVltJ30.exe.log
      MD5

      b4f7a6a57cb46d94b72410eb6a6d45a9

      SHA1

      69f3596ffa027202d391444b769ceea0ae14c5f7

      SHA256

      23994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b

      SHA512

      be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c

    • memory/504-7-0x0000000005A60000-0x0000000005A61000-memory.dmp
      Filesize

      4KB

    • memory/504-10-0x0000000005A50000-0x0000000005A5E000-memory.dmp
      Filesize

      56KB

    • memory/504-6-0x0000000005EC0000-0x0000000005EC1000-memory.dmp
      Filesize

      4KB

    • memory/504-2-0x0000000073D40000-0x000000007442E000-memory.dmp
      Filesize

      6.9MB

    • memory/504-12-0x0000000007EC0000-0x0000000007EC1000-memory.dmp
      Filesize

      4KB

    • memory/504-9-0x0000000005780000-0x0000000005781000-memory.dmp
      Filesize

      4KB

    • memory/504-5-0x0000000007B40000-0x0000000007C31000-memory.dmp
      Filesize

      964KB

    • memory/504-11-0x0000000007D80000-0x0000000007E13000-memory.dmp
      Filesize

      588KB

    • memory/504-8-0x00000000057B0000-0x00000000057B1000-memory.dmp
      Filesize

      4KB

    • memory/504-3-0x0000000000C00000-0x0000000000C01000-memory.dmp
      Filesize

      4KB

    • memory/2044-14-0x00000000004374DE-mapping.dmp
    • memory/2044-13-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2044-16-0x0000000073D40000-0x000000007442E000-memory.dmp
      Filesize

      6.9MB

    • memory/2044-21-0x00000000053A0000-0x00000000053A1000-memory.dmp
      Filesize

      4KB

    • memory/2044-22-0x00000000056B0000-0x00000000056B1000-memory.dmp
      Filesize

      4KB

    • memory/2044-23-0x0000000005E50000-0x0000000005E51000-memory.dmp
      Filesize

      4KB