Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:16

General

  • Target

    Maxima Trading - Products List.exe

  • Size

    695KB

  • MD5

    f7458aa5319364b9ab0f3ab279c30e5a

  • SHA1

    b5cb9eb85241e5eec2f406837616aba9f1f89520

  • SHA256

    b326e71388c8abfb8e0e74aa913863af33e3299ad79fa42dd2d3e4c44e63da2a

  • SHA512

    4739a0f529d0dab266ae04bb3bde702c0a55aee263c8b146a495836840944acf217640e07d7e375d06af84e04273e5846843510cfd277e606a0cdbcf53c8a2dd

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    587
  • Username:
    insidesales8@mail.ru
  • Password:
    678ui@#gh123!

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 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Maxima Trading - Products List.exe
    "C:\Users\Admin\AppData\Local\Temp\Maxima Trading - Products List.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BrKoRZcucICY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D78.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1460
    • C:\Users\Admin\AppData\Local\Temp\Maxima Trading - Products List.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:220
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4308

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Maxima Trading - Products List.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\tmp2D78.tmp
      Filesize

      1KB

      MD5

      25d10daee1b01c971809522f2a846e41

      SHA1

      90273ab01058dc5d197d276a7f6a4ae1d2c2e80e

      SHA256

      32de5fa4f1985d7a160c4e71f68633b8172e9048015809b031d0c0fd3a6366d7

      SHA512

      4998a6331a60926829869b6864b5082d4721b98335fb911cf154343d2751ecfa7b66e32d4731cf344dfd62ccb934e80e38456ab64abb429b3590461cdad4b994

    • memory/220-137-0x0000000000000000-mapping.dmp
    • memory/220-138-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/220-140-0x0000000005720000-0x0000000005786000-memory.dmp
      Filesize

      408KB

    • memory/220-142-0x0000000006400000-0x0000000006450000-memory.dmp
      Filesize

      320KB

    • memory/1460-135-0x0000000000000000-mapping.dmp
    • memory/1964-132-0x00000000074C0000-0x0000000007552000-memory.dmp
      Filesize

      584KB

    • memory/1964-133-0x0000000005110000-0x000000000511A000-memory.dmp
      Filesize

      40KB

    • memory/1964-134-0x000000000AF90000-0x000000000B02C000-memory.dmp
      Filesize

      624KB

    • memory/1964-130-0x0000000000560000-0x0000000000614000-memory.dmp
      Filesize

      720KB

    • memory/1964-131-0x0000000007A70000-0x0000000008014000-memory.dmp
      Filesize

      5.6MB

    • memory/4308-141-0x0000000000000000-mapping.dmp