Analysis

  • max time kernel
    132s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-11-2024 02:02

General

  • Target

    424007811 NOLU TEKLiF HK..exe

  • Size

    744KB

  • MD5

    520a262f80cf02e30659bc426ba7c170

  • SHA1

    e310439406536997b929f5efa687e54e9464f2f1

  • SHA256

    e906e21afae36935bb736db8fa0373c88f2988cd5c8c3e8a646e41eaa449ac6f

  • SHA512

    d6c4d7a1e3df4d2a640996231436550c86f6026783fe4c499ecc676e5fe838a48cc6321194c3deb92d8ecdedfb4603c66748e84d492bdbcdd169bb2b696e999d

  • SSDEEP

    12288:f43aCm25qFwzm/OXeDWIiH+UVFKuHwesVOCH2No7sTVBXSryCJVM5:wX56Gm/oexRUauHwesXICgCJVe

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.apexrnun.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    CCu5Z?WuH+bS4hsz

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 1 IoCs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe
    "C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3372
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2064
    • C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe
      "C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"
      2⤵
        PID:3904
      • C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe
        "C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3180

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_duvctznw.km2.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2064-49-0x0000000006F00000-0x0000000006F1A000-memory.dmp

      Filesize

      104KB

    • memory/2064-50-0x0000000006F70000-0x0000000006F7A000-memory.dmp

      Filesize

      40KB

    • memory/2064-32-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/2064-60-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/2064-57-0x0000000007220000-0x0000000007228000-memory.dmp

      Filesize

      32KB

    • memory/2064-56-0x0000000007240000-0x000000000725A000-memory.dmp

      Filesize

      104KB

    • memory/2064-55-0x0000000007140000-0x0000000007154000-memory.dmp

      Filesize

      80KB

    • memory/2064-31-0x00000000056B0000-0x0000000005A04000-memory.dmp

      Filesize

      3.3MB

    • memory/2064-54-0x0000000007130000-0x000000000713E000-memory.dmp

      Filesize

      56KB

    • memory/2064-53-0x0000000007100000-0x0000000007111000-memory.dmp

      Filesize

      68KB

    • memory/2064-52-0x0000000007180000-0x0000000007216000-memory.dmp

      Filesize

      600KB

    • memory/2064-33-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

      Filesize

      120KB

    • memory/2064-19-0x0000000005430000-0x0000000005452000-memory.dmp

      Filesize

      136KB

    • memory/2064-15-0x0000000004640000-0x0000000004676000-memory.dmp

      Filesize

      216KB

    • memory/2064-48-0x0000000007540000-0x0000000007BBA000-memory.dmp

      Filesize

      6.5MB

    • memory/2064-17-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/2064-18-0x0000000004D00000-0x0000000005328000-memory.dmp

      Filesize

      6.2MB

    • memory/2064-47-0x0000000006BC0000-0x0000000006C63000-memory.dmp

      Filesize

      652KB

    • memory/2064-46-0x00000000061A0000-0x00000000061BE000-memory.dmp

      Filesize

      120KB

    • memory/2064-20-0x00000000054D0000-0x0000000005536000-memory.dmp

      Filesize

      408KB

    • memory/2064-36-0x0000000070320000-0x000000007036C000-memory.dmp

      Filesize

      304KB

    • memory/2064-35-0x0000000006B70000-0x0000000006BA2000-memory.dmp

      Filesize

      200KB

    • memory/2064-34-0x0000000006110000-0x000000000615C000-memory.dmp

      Filesize

      304KB

    • memory/3180-13-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/3180-51-0x0000000006CB0000-0x0000000006D00000-memory.dmp

      Filesize

      320KB

    • memory/3180-62-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/3180-61-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/3180-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3180-26-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/3180-16-0x0000000005730000-0x0000000005796000-memory.dmp

      Filesize

      408KB

    • memory/3372-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

      Filesize

      4KB

    • memory/3372-2-0x0000000005DC0000-0x0000000006364000-memory.dmp

      Filesize

      5.6MB

    • memory/3372-3-0x0000000005700000-0x0000000005792000-memory.dmp

      Filesize

      584KB

    • memory/3372-1-0x0000000000C40000-0x0000000000D00000-memory.dmp

      Filesize

      768KB

    • memory/3372-10-0x00000000084B0000-0x0000000008536000-memory.dmp

      Filesize

      536KB

    • memory/3372-9-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/3372-7-0x0000000005DB0000-0x0000000005DC2000-memory.dmp

      Filesize

      72KB

    • memory/3372-6-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/3372-5-0x00000000057A0000-0x00000000057AA000-memory.dmp

      Filesize

      40KB

    • memory/3372-4-0x00000000058B0000-0x000000000594C000-memory.dmp

      Filesize

      624KB

    • memory/3372-14-0x00000000746A0000-0x0000000074E50000-memory.dmp

      Filesize

      7.7MB

    • memory/3372-8-0x00000000746AE000-0x00000000746AF000-memory.dmp

      Filesize

      4KB