Analysis

  • max time kernel
    125s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 17:46

General

  • Target

    SANTSSWK20100001 S-JF 2000133.exe

  • Size

    665KB

  • MD5

    b611aea937591e0ed71d5419c8db438e

  • SHA1

    332c092871569bd366a911768d242d2c6971cb8e

  • SHA256

    319379237e8c63327a6ce286135cb3355ee2a592742a70e03c00cc0c351d25f5

  • SHA512

    1036cb32909bb9ff18e53f986782f828e3742c37ef07505d7cbc59e480e573394df3bbb849c098de3e0aa7c7c7f5e598382b4261f4948be8839f7e96f48a2ac7

  • SSDEEP

    12288:qpZ75lNi/0ux6qCEt+Fys4wdakntbwYgeLiT1lNWkuIQQ18vOESA:qHvNC0etD8ntMEulEkaQ18X

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mother@200

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.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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\SANTSSWK20100001 S-JF 2000133.exe
    "C:\Users\Admin\AppData\Local\Temp\SANTSSWK20100001 S-JF 2000133.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3936
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yPmkwFKokf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp93AB.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2560
    • C:\Users\Admin\AppData\Local\Temp\SANTSSWK20100001 S-JF 2000133.exe
      "C:\Users\Admin\AppData\Local\Temp\SANTSSWK20100001 S-JF 2000133.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2516
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1904,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4336 /prefetch:8
    1⤵
      PID:2316

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SANTSSWK20100001 S-JF 2000133.exe.log

      Filesize

      1KB

      MD5

      17573558c4e714f606f997e5157afaac

      SHA1

      13e16e9415ceef429aaf124139671ebeca09ed23

      SHA256

      c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

      SHA512

      f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

    • C:\Users\Admin\AppData\Local\Temp\tmp93AB.tmp

      Filesize

      1KB

      MD5

      495a918f9acb55b4cd70585a2d0bf5f6

      SHA1

      9587a89421267b107ba4bd86fe0f59baf7fb0e88

      SHA256

      0c9d41d6b3c0b9814a937d4decf9d70463a37a074bd324fcd94fcc32223b6d5f

      SHA512

      d89e8a051a02b0c04903b76376fe6fc72d8b876536cde1883e0f9c1da4562f9a4cc5d63ea1ca5407bdf8ff80f37e6a8385d0b18fbe458e126c631c6781e6fc58

    • memory/2516-26-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2516-25-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2516-24-0x00000000062E0000-0x0000000006346000-memory.dmp

      Filesize

      408KB

    • memory/2516-23-0x0000000005790000-0x00000000057A8000-memory.dmp

      Filesize

      96KB

    • memory/2516-22-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2516-20-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2516-17-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3936-5-0x0000000005180000-0x000000000518A000-memory.dmp

      Filesize

      40KB

    • memory/3936-10-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/3936-11-0x0000000001150000-0x00000000011BA000-memory.dmp

      Filesize

      424KB

    • memory/3936-9-0x000000007460E000-0x000000007460F000-memory.dmp

      Filesize

      4KB

    • memory/3936-8-0x0000000005650000-0x000000000565A000-memory.dmp

      Filesize

      40KB

    • memory/3936-7-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/3936-6-0x0000000005440000-0x0000000005496000-memory.dmp

      Filesize

      344KB

    • memory/3936-21-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/3936-0-0x000000007460E000-0x000000007460F000-memory.dmp

      Filesize

      4KB

    • memory/3936-4-0x0000000005250000-0x00000000052E2000-memory.dmp

      Filesize

      584KB

    • memory/3936-3-0x0000000005800000-0x0000000005DA4000-memory.dmp

      Filesize

      5.6MB

    • memory/3936-2-0x00000000051B0000-0x000000000524C000-memory.dmp

      Filesize

      624KB

    • memory/3936-1-0x00000000006D0000-0x000000000077C000-memory.dmp

      Filesize

      688KB