Analysis

  • max time kernel
    153s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220331-en
  • submitted
    14-04-2022 12:36

General

  • Target

    4ce893759b9551b85e7da9a9240da89250ae2caebdec09399deab52128f816fd.exe

  • Size

    989KB

  • MD5

    20d41b23ce125d7ae86c1a1e5b9d208c

  • SHA1

    99967b9cc47e145819bd5e0d58200497f07e5b0b

  • SHA256

    4ce893759b9551b85e7da9a9240da89250ae2caebdec09399deab52128f816fd

  • SHA512

    a719386808b620c157e6e80f2615ae4fe68c73a677ac9bd43b72093d339dfc16ff55efe374d8c1832718e5c8aeb2cd1c66a9d38261c218aa4d2c17c2376d8094

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    tinfortruck.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    owen@123

Signatures

  • AgentTesla

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

  • Meta Stealer Stealer

    Meta Stealer steals passwords stored in browsers, written in C++.

  • AgentTesla Payload 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ce893759b9551b85e7da9a9240da89250ae2caebdec09399deab52128f816fd.exe
    "C:\Users\Admin\AppData\Local\Temp\4ce893759b9551b85e7da9a9240da89250ae2caebdec09399deab52128f816fd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:720
    • C:\Users\Admin\AppData\Local\Temp\4ce893759b9551b85e7da9a9240da89250ae2caebdec09399deab52128f816fd.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4600

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4ce893759b9551b85e7da9a9240da89250ae2caebdec09399deab52128f816fd.exe.log

    Filesize

    1KB

    MD5

    6f8f3a9a57cb30e686d3355e656031e0

    SHA1

    acccd6befb1a2f40e662280bc5182e086a0d079b

    SHA256

    283586e83b25099a5698cb9caf9c594a37060d11e0f55c81bb9c6d4f728448ea

    SHA512

    8f11d645ff4f8d5b1c45b06eb52cd45319659255306d60e80e33abfd04b9e3b1164679f11a8a23bd493e4b3f6b9841d70e553a01835eeaf6035b4d05e4fd7b54

  • memory/720-124-0x0000000000370000-0x000000000046E000-memory.dmp

    Filesize

    1016KB

  • memory/720-125-0x00000000077B0000-0x0000000007D54000-memory.dmp

    Filesize

    5.6MB

  • memory/720-126-0x00000000072E0000-0x0000000007372000-memory.dmp

    Filesize

    584KB

  • memory/720-127-0x0000000007490000-0x000000000749A000-memory.dmp

    Filesize

    40KB

  • memory/720-128-0x0000000009CB0000-0x000000000A1DC000-memory.dmp

    Filesize

    5.2MB

  • memory/720-129-0x000000000A1E0000-0x000000000A27C000-memory.dmp

    Filesize

    624KB

  • memory/4600-131-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4600-133-0x0000000006230000-0x0000000006296000-memory.dmp

    Filesize

    408KB

  • memory/4600-134-0x0000000006EF0000-0x0000000006F40000-memory.dmp

    Filesize

    320KB