Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/05/2023, 16:53

General

  • Target

    PO-23000326.exe

  • Size

    725KB

  • MD5

    2c3c0bd218b8ea139e490e68b529b1ce

  • SHA1

    f76281b7315fc17621ebcdbedb61816d39595ec5

  • SHA256

    e78333be3402a8425c18a63f6938fa2f861c877e362d6c679079c17d6ee18dd2

  • SHA512

    f0bad998b57c6a02e86d2ab865f3808f6d0c96026af7a7d033b273db46ec7faf2497bc55560d94bab385c74fe88bcd125e22c9784eaede1a9229c16983ca19cc

  • SSDEEP

    12288:0DX91uYfT3t5Zb/FzFPkG4HLiy5df8A9ipC4PMe9P6MHGlc5YwpcJTX7:0R1uYfJ559d4Hdj8miETetHGO5YYcJT

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 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).

  • 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 6 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\PO-23000326.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-23000326.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ANsfmwAf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5080
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ANsfmwAf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3921.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:528
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4804

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lxchnl3f.d3r.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp3921.tmp

          Filesize

          1KB

          MD5

          e08ea0be078b3b32270c2a9ec696cbeb

          SHA1

          ad20a9508edcce37a584b81b84892856251c8406

          SHA256

          7b325d0ec0fa42bba3e2c93fdd81daff4d50d2b4198e361cf2be4c00c546f341

          SHA512

          4ef9178f79a5a6bb4d892a7ef25d8283f17a06ba6834251820de700366609307e9f8fad20d9eabe91d0748daeb697b0d1e49b7e8eacca8cede5f7bf143e11810

        • memory/2492-139-0x0000000007430000-0x00000000074CC000-memory.dmp

          Filesize

          624KB

        • memory/2492-136-0x0000000005AE0000-0x0000000005AEA000-memory.dmp

          Filesize

          40KB

        • memory/2492-137-0x00000000059C0000-0x00000000059D0000-memory.dmp

          Filesize

          64KB

        • memory/2492-138-0x00000000059C0000-0x00000000059D0000-memory.dmp

          Filesize

          64KB

        • memory/2492-135-0x0000000005A20000-0x0000000005AB2000-memory.dmp

          Filesize

          584KB

        • memory/2492-133-0x0000000000FE0000-0x000000000109C000-memory.dmp

          Filesize

          752KB

        • memory/2492-134-0x00000000060D0000-0x0000000006674000-memory.dmp

          Filesize

          5.6MB

        • memory/4804-161-0x0000000005230000-0x0000000005240000-memory.dmp

          Filesize

          64KB

        • memory/4804-191-0x0000000005230000-0x0000000005240000-memory.dmp

          Filesize

          64KB

        • memory/4804-185-0x00000000068E0000-0x0000000006AA2000-memory.dmp

          Filesize

          1.8MB

        • memory/4804-146-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/4804-149-0x0000000005240000-0x00000000052A6000-memory.dmp

          Filesize

          408KB

        • memory/4804-183-0x00000000066C0000-0x0000000006710000-memory.dmp

          Filesize

          320KB

        • memory/5080-162-0x0000000002FF0000-0x0000000003000000-memory.dmp

          Filesize

          64KB

        • memory/5080-180-0x0000000008160000-0x00000000087DA000-memory.dmp

          Filesize

          6.5MB

        • memory/5080-163-0x0000000006810000-0x000000000682E000-memory.dmp

          Filesize

          120KB

        • memory/5080-164-0x0000000002FF0000-0x0000000003000000-memory.dmp

          Filesize

          64KB

        • memory/5080-166-0x0000000006DD0000-0x0000000006E02000-memory.dmp

          Filesize

          200KB

        • memory/5080-167-0x00000000700A0000-0x00000000700EC000-memory.dmp

          Filesize

          304KB

        • memory/5080-177-0x0000000006DB0000-0x0000000006DCE000-memory.dmp

          Filesize

          120KB

        • memory/5080-178-0x0000000002FF0000-0x0000000003000000-memory.dmp

          Filesize

          64KB

        • memory/5080-179-0x000000007F5C0000-0x000000007F5D0000-memory.dmp

          Filesize

          64KB

        • memory/5080-151-0x0000000006150000-0x00000000061B6000-memory.dmp

          Filesize

          408KB

        • memory/5080-181-0x0000000007B10000-0x0000000007B2A000-memory.dmp

          Filesize

          104KB

        • memory/5080-182-0x0000000007B80000-0x0000000007B8A000-memory.dmp

          Filesize

          40KB

        • memory/5080-150-0x00000000058C0000-0x00000000058E2000-memory.dmp

          Filesize

          136KB

        • memory/5080-184-0x0000000007D90000-0x0000000007E26000-memory.dmp

          Filesize

          600KB

        • memory/5080-147-0x00000000059B0000-0x0000000005FD8000-memory.dmp

          Filesize

          6.2MB

        • memory/5080-186-0x0000000007D40000-0x0000000007D4E000-memory.dmp

          Filesize

          56KB

        • memory/5080-187-0x0000000007E50000-0x0000000007E6A000-memory.dmp

          Filesize

          104KB

        • memory/5080-188-0x0000000007E30000-0x0000000007E38000-memory.dmp

          Filesize

          32KB

        • memory/5080-144-0x0000000002EE0000-0x0000000002F16000-memory.dmp

          Filesize

          216KB