Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 01:00

General

  • Target

    scan_865784.scr

  • Size

    762KB

  • MD5

    ab81060e67501bc08bd8a3f9bac5367f

  • SHA1

    f877625633f98d1f42c50e37006f808aa61630ba

  • SHA256

    7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c

  • SHA512

    61782aa2dc9663cdeb016a0b0dac91cbb4eaee8f293a1f96486539dae32c144643b299c87745657ad0682208aa5586e1ad3340e62f99f371dbdc683eb3b2717a

  • SSDEEP

    12288:VUxAdWvsd2eUUHd8GX5b+EE203zQeDZDr0ZeVN1csr8qHv0U3TB39:VUxpa2ZUHd8GXhE20DnFf0MVNrnPx39

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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 5 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\scan_865784.scr
    "C:\Users\Admin\AppData\Local\Temp\scan_865784.scr" /S
    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:1864
    • 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\scan_865784.scr"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:752
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jUTthTUyPiZyGH.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4240
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jUTthTUyPiZyGH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9FA6.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4264
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1152

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          2KB

          MD5

          968cb9309758126772781b83adb8a28f

          SHA1

          8da30e71accf186b2ba11da1797cf67f8f78b47c

          SHA256

          92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

          SHA512

          4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          18KB

          MD5

          2ac8b5f298563fd31c286c3ace7b1735

          SHA1

          9ba96502e9e78549de41d001d379f2e1f4f58482

          SHA256

          d87ca4f88e062f756635844eb8586b2607398ce6db2a93603428527ed73aaad7

          SHA512

          e25926464eb74eaaa2191f4db0187e0ff49261f74c5fdc209abe9e4f1409fccb1485b87eebfcc84c798149da6c1f308775566af9faa3d5e2f6f63861c2d28f44

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_deeunbet.3zg.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp9FA6.tmp

          Filesize

          1KB

          MD5

          08ef906b16929315d18e54dd337a4ada

          SHA1

          f6a5f85e273dccfab652cd5cf673b076c1fe0e8f

          SHA256

          2e9202dca925cd9020ad3ba910bb9eca407f6cddfe26c3c628b2a2fac2f80339

          SHA512

          678df14f547ba05e64297049c34a183c7709116ac8a78f6b4370365fecf51e7b2a76cab266451ce036cac34e1184c4b64bdcb3d9cbace786df3ece20efb653bc

        • memory/752-21-0x0000000005A30000-0x0000000005A52000-memory.dmp

          Filesize

          136KB

        • memory/752-73-0x0000000008170000-0x00000000087EA000-memory.dmp

          Filesize

          6.5MB

        • memory/752-52-0x0000000074D90000-0x0000000074DDC000-memory.dmp

          Filesize

          304KB

        • memory/752-25-0x0000000006210000-0x0000000006564000-memory.dmp

          Filesize

          3.3MB

        • memory/752-22-0x0000000006130000-0x0000000006196000-memory.dmp

          Filesize

          408KB

        • memory/752-24-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/752-14-0x0000000002EF0000-0x0000000002F26000-memory.dmp

          Filesize

          216KB

        • memory/752-16-0x0000000005A90000-0x00000000060B8000-memory.dmp

          Filesize

          6.2MB

        • memory/752-15-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/752-17-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/752-75-0x0000000007BA0000-0x0000000007BAA000-memory.dmp

          Filesize

          40KB

        • memory/752-23-0x00000000061A0000-0x0000000006206000-memory.dmp

          Filesize

          408KB

        • memory/752-88-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1152-41-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/1152-89-0x00000000064E0000-0x0000000006530000-memory.dmp

          Filesize

          320KB

        • memory/1152-90-0x00000000065B0000-0x00000000065BA000-memory.dmp

          Filesize

          40KB

        • memory/1864-0-0x000000007450E000-0x000000007450F000-memory.dmp

          Filesize

          4KB

        • memory/1864-8-0x00000000047C0000-0x0000000004844000-memory.dmp

          Filesize

          528KB

        • memory/1864-7-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1864-9-0x000000000C100000-0x000000000C19C000-memory.dmp

          Filesize

          624KB

        • memory/1864-5-0x0000000006770000-0x000000000678E000-memory.dmp

          Filesize

          120KB

        • memory/1864-47-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1864-1-0x0000000000350000-0x0000000000414000-memory.dmp

          Filesize

          784KB

        • memory/1864-2-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/1864-6-0x000000007450E000-0x000000007450F000-memory.dmp

          Filesize

          4KB

        • memory/1864-3-0x00000000054B0000-0x0000000005A54000-memory.dmp

          Filesize

          5.6MB

        • memory/1864-4-0x0000000004FD0000-0x0000000005062000-memory.dmp

          Filesize

          584KB

        • memory/4240-72-0x0000000007800000-0x00000000078A3000-memory.dmp

          Filesize

          652KB

        • memory/4240-80-0x0000000007C80000-0x0000000007C9A000-memory.dmp

          Filesize

          104KB

        • memory/4240-74-0x0000000007940000-0x000000000795A000-memory.dmp

          Filesize

          104KB

        • memory/4240-71-0x00000000077D0000-0x00000000077EE000-memory.dmp

          Filesize

          120KB

        • memory/4240-50-0x0000000007790000-0x00000000077C2000-memory.dmp

          Filesize

          200KB

        • memory/4240-76-0x0000000007BC0000-0x0000000007C56000-memory.dmp

          Filesize

          600KB

        • memory/4240-77-0x0000000007B40000-0x0000000007B51000-memory.dmp

          Filesize

          68KB

        • memory/4240-78-0x0000000007B70000-0x0000000007B7E000-memory.dmp

          Filesize

          56KB

        • memory/4240-79-0x0000000007B80000-0x0000000007B94000-memory.dmp

          Filesize

          80KB

        • memory/4240-19-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/4240-81-0x0000000007C60000-0x0000000007C68000-memory.dmp

          Filesize

          32KB

        • memory/4240-84-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/4240-51-0x0000000074D90000-0x0000000074DDC000-memory.dmp

          Filesize

          304KB

        • memory/4240-48-0x0000000006620000-0x000000000663E000-memory.dmp

          Filesize

          120KB

        • memory/4240-49-0x0000000006660000-0x00000000066AC000-memory.dmp

          Filesize

          304KB

        • memory/4240-40-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB

        • memory/4240-18-0x0000000074500000-0x0000000074CB0000-memory.dmp

          Filesize

          7.7MB