Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    14-04-2022 12:39

General

  • Target

    e484d01f9c3885794ba1fbd44760b61fe779cb0a5deccaa0b191e04f6f9810c0.exe

  • Size

    756KB

  • MD5

    f102830b868ee3c2a5c50831d0848052

  • SHA1

    6040522ab7642bea1555995c7b43906dcee46173

  • SHA256

    e484d01f9c3885794ba1fbd44760b61fe779cb0a5deccaa0b191e04f6f9810c0

  • SHA512

    b77c2fd5bc2ec52064be214954e5010accfa785463cabca7ae2b07893f2541ca66b66a95cab9d32f90158dcf8244096051d6674e0f1020a2c9cab72523588df2

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mmm777

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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e484d01f9c3885794ba1fbd44760b61fe779cb0a5deccaa0b191e04f6f9810c0.exe
    "C:\Users\Admin\AppData\Local\Temp\e484d01f9c3885794ba1fbd44760b61fe779cb0a5deccaa0b191e04f6f9810c0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Jrqpij" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB714.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1236
    • C:\Users\Admin\AppData\Local\Temp\e484d01f9c3885794ba1fbd44760b61fe779cb0a5deccaa0b191e04f6f9810c0.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2932

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e484d01f9c3885794ba1fbd44760b61fe779cb0a5deccaa0b191e04f6f9810c0.exe.log

    Filesize

    1KB

    MD5

    6f8f3a9a57cb30e686d3355e656031e0

    SHA1

    acccd6befb1a2f40e662280bc5182e086a0d079b

    SHA256

    283586e83b25099a5698cb9caf9c594a37060d11e0f55c81bb9c6d4f728448ea

    SHA512

    8f11d645ff4f8d5b1c45b06eb52cd45319659255306d60e80e33abfd04b9e3b1164679f11a8a23bd493e4b3f6b9841d70e553a01835eeaf6035b4d05e4fd7b54

  • C:\Users\Admin\AppData\Local\Temp\tmpB714.tmp

    Filesize

    1KB

    MD5

    9b823e701e5e3b9dedceff2f269aa39f

    SHA1

    2ebb2b1224f142f773cd9e39caf68519e5f38192

    SHA256

    551fcacc78a4f812efb1ec1a7fd682e217d84851bbe36daace492ab969e231c4

    SHA512

    f41b77de6b2e811536a351c3c08e64663966bfab47818efb52546132d38c909c0e440f195a1c568f2b91bd74da4c2bb110b35ba4b75b9dba307fde03bd44f48b

  • memory/2932-143-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2932-145-0x00000000065E0000-0x0000000006646000-memory.dmp

    Filesize

    408KB

  • memory/3716-134-0x0000000000550000-0x0000000000614000-memory.dmp

    Filesize

    784KB

  • memory/3716-135-0x0000000009AF0000-0x000000000A094000-memory.dmp

    Filesize

    5.6MB

  • memory/3716-136-0x00000000051C0000-0x0000000005252000-memory.dmp

    Filesize

    584KB

  • memory/3716-137-0x0000000005000000-0x000000000500A000-memory.dmp

    Filesize

    40KB

  • memory/3716-138-0x0000000008A70000-0x0000000008F9C000-memory.dmp

    Filesize

    5.2MB

  • memory/3716-139-0x0000000008840000-0x00000000088DC000-memory.dmp

    Filesize

    624KB