Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 13:52

General

  • Target

    6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe

  • Size

    550KB

  • MD5

    b86889a778d341f384651c5950f65a47

  • SHA1

    3953603b47411e8c0b3c3906fdfad2dca66aad6b

  • SHA256

    6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40

  • SHA512

    4e044a5db64940a21825a597e3c45090f06e8e54b1dfcdd2d6e68054c2d1ea4caa6b14d7f99dfef0431e81ed5f587275a21ed54ac0c2b8dcbc84f9daf3fefacb

  • SSDEEP

    6144:jcqPlAc2jHc2j5c2pe0xVO7JpyTaeDLzjFVKIhzcwOBflXEY+2kx+YRtWel2H+j:jcqd+xVO7Jw3FV5zoflXEY+F7D4XXE

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.darnfoss.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    QhMzMMh0

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

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

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe
    "C:\Users\Admin\AppData\Local\Temp\6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2656
    • 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\6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4116
    • C:\Users\Admin\AppData\Local\Temp\6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe
      "C:\Users\Admin\AppData\Local\Temp\6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe"
      2⤵
        PID:3904
      • C:\Users\Admin\AppData\Local\Temp\6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe
        "C:\Users\Admin\AppData\Local\Temp\6e3da30b226495f4500bf25723258d452e35cea413cb18fa4ac692cd15f0ed40.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1952

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hzsinwhl.n4b.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1952-18-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1952-66-0x00000000061E0000-0x0000000006230000-memory.dmp

      Filesize

      320KB

    • memory/1952-65-0x00000000054B0000-0x00000000054C0000-memory.dmp

      Filesize

      64KB

    • memory/1952-64-0x0000000074B30000-0x00000000752E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1952-63-0x0000000005250000-0x0000000005268000-memory.dmp

      Filesize

      96KB

    • memory/1952-33-0x00000000054B0000-0x00000000054C0000-memory.dmp

      Filesize

      64KB

    • memory/1952-30-0x0000000074B30000-0x00000000752E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2656-31-0x0000000074B30000-0x00000000752E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2656-6-0x0000000006670000-0x0000000006684000-memory.dmp

      Filesize

      80KB

    • memory/2656-10-0x0000000006810000-0x0000000006880000-memory.dmp

      Filesize

      448KB

    • memory/2656-11-0x0000000006A00000-0x0000000006A66000-memory.dmp

      Filesize

      408KB

    • memory/2656-0-0x0000000000520000-0x00000000005B0000-memory.dmp

      Filesize

      576KB

    • memory/2656-2-0x0000000005510000-0x0000000005AB4000-memory.dmp

      Filesize

      5.6MB

    • memory/2656-3-0x0000000005000000-0x0000000005092000-memory.dmp

      Filesize

      584KB

    • memory/2656-4-0x00000000051D0000-0x00000000051E0000-memory.dmp

      Filesize

      64KB

    • memory/2656-9-0x0000000006680000-0x000000000671C000-memory.dmp

      Filesize

      624KB

    • memory/2656-5-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

      Filesize

      40KB

    • memory/2656-8-0x00000000051D0000-0x00000000051E0000-memory.dmp

      Filesize

      64KB

    • memory/2656-7-0x0000000074B30000-0x00000000752E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2656-1-0x0000000074B30000-0x00000000752E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-36-0x0000000000CF0000-0x0000000000D00000-memory.dmp

      Filesize

      64KB

    • memory/4116-52-0x0000000007120000-0x000000000713A000-memory.dmp

      Filesize

      104KB

    • memory/4116-32-0x0000000005940000-0x0000000005C94000-memory.dmp

      Filesize

      3.3MB

    • memory/4116-17-0x0000000004DB0000-0x0000000004DD2000-memory.dmp

      Filesize

      136KB

    • memory/4116-34-0x0000000005E10000-0x0000000005E2E000-memory.dmp

      Filesize

      120KB

    • memory/4116-35-0x0000000005E50000-0x0000000005E9C000-memory.dmp

      Filesize

      304KB

    • memory/4116-16-0x0000000004EC0000-0x00000000054E8000-memory.dmp

      Filesize

      6.2MB

    • memory/4116-37-0x000000007F650000-0x000000007F660000-memory.dmp

      Filesize

      64KB

    • memory/4116-38-0x0000000006DD0000-0x0000000006E02000-memory.dmp

      Filesize

      200KB

    • memory/4116-39-0x00000000753E0000-0x000000007542C000-memory.dmp

      Filesize

      304KB

    • memory/4116-49-0x00000000063D0000-0x00000000063EE000-memory.dmp

      Filesize

      120KB

    • memory/4116-50-0x0000000007010000-0x00000000070B3000-memory.dmp

      Filesize

      652KB

    • memory/4116-51-0x0000000007770000-0x0000000007DEA000-memory.dmp

      Filesize

      6.5MB

    • memory/4116-25-0x0000000005760000-0x00000000057C6000-memory.dmp

      Filesize

      408KB

    • memory/4116-53-0x0000000007190000-0x000000000719A000-memory.dmp

      Filesize

      40KB

    • memory/4116-54-0x00000000073A0000-0x0000000007436000-memory.dmp

      Filesize

      600KB

    • memory/4116-55-0x0000000007320000-0x0000000007331000-memory.dmp

      Filesize

      68KB

    • memory/4116-56-0x0000000007350000-0x000000000735E000-memory.dmp

      Filesize

      56KB

    • memory/4116-57-0x0000000007360000-0x0000000007374000-memory.dmp

      Filesize

      80KB

    • memory/4116-58-0x0000000007460000-0x000000000747A000-memory.dmp

      Filesize

      104KB

    • memory/4116-59-0x0000000007440000-0x0000000007448000-memory.dmp

      Filesize

      32KB

    • memory/4116-62-0x0000000074B30000-0x00000000752E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-15-0x0000000000CF0000-0x0000000000D00000-memory.dmp

      Filesize

      64KB

    • memory/4116-14-0x0000000000CF0000-0x0000000000D00000-memory.dmp

      Filesize

      64KB

    • memory/4116-13-0x0000000074B30000-0x00000000752E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-12-0x0000000004850000-0x0000000004886000-memory.dmp

      Filesize

      216KB