Analysis

  • max time kernel
    145s
  • 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
    14-01-2025 01:31

General

  • Target

    Ref#11310057.exe

  • Size

    145KB

  • MD5

    4695c58b4e2dd8c7865ccc0bc0693367

  • SHA1

    a8d4b077cd63843ad5305b063aa1d95a4f398eb7

  • SHA256

    3a56216ded9e2b6fae078b2c0beb9601d8404444818bf9e413884e3cd886d8f8

  • SHA512

    27de43000cdb506632ac01049d767fbd1ace0783d2914f0d16083458f6555474159fb4e5345cd0b6e18ec9ddff95e74678077910a4ceae500229084da9f366f6

  • SSDEEP

    3072:rqoBB1EMoND5/7CbiAGtt4mt2PRKjIUuppC/j:1RkFAGt9MJKYW

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 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).

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3356
      • C:\Users\Admin\AppData\Local\Temp\Ref#11310057.exe
        "C:\Users\Admin\AppData\Local\Temp\Ref#11310057.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Checks computer location settings
        • Drops startup file
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2104
        • C:\Users\Admin\AppData\Local\Temp\ckuv.exe
          "C:\Users\Admin\AppData\Local\Temp\ckuv.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2780
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5364

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ckuv.exe

      Filesize

      56KB

      MD5

      cdd3d1bb178c391a905c40d2b292f4d6

      SHA1

      bf7fce373510e8fac054703f879c5aac2e8ed584

      SHA256

      f0881d1c9f9e086eb8d814e03cd6c01f357f0cae2627ff27e011104c6e88ccea

      SHA512

      e089bc47342b8ffe798e665f3d248de711e704058717398b240809db261e5226ad748f80f7e45ae1bb7efa27196a9a520109cb633782394c90c13b0d79c0e41a

    • memory/2104-17-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-61-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-2-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2104-3-0x00000000750FE000-0x00000000750FF000-memory.dmp

      Filesize

      4KB

    • memory/2104-4-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2104-5-0x0000000005E80000-0x0000000005F9A000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-29-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-27-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-51-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-69-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-67-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-65-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-63-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-15-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-59-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-57-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-55-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-53-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-49-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-47-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-45-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-43-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-41-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-39-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-37-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-36-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-33-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-31-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-25-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-23-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-19-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-0-0x00000000750FE000-0x00000000750FF000-memory.dmp

      Filesize

      4KB

    • memory/2104-1-0x00000000001F0000-0x0000000000218000-memory.dmp

      Filesize

      160KB

    • memory/2104-13-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-11-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-21-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-9-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-7-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-6-0x0000000005E80000-0x0000000005F94000-memory.dmp

      Filesize

      1.1MB

    • memory/2104-1328-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2104-1329-0x0000000005970000-0x00000000059E4000-memory.dmp

      Filesize

      464KB

    • memory/2104-1330-0x00000000059F0000-0x0000000005A60000-memory.dmp

      Filesize

      448KB

    • memory/2104-1331-0x0000000005FC0000-0x000000000600C000-memory.dmp

      Filesize

      304KB

    • memory/2104-1332-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2104-1346-0x00000000055A0000-0x00000000055F4000-memory.dmp

      Filesize

      336KB

    • memory/2104-1345-0x0000000006B20000-0x00000000070C4000-memory.dmp

      Filesize

      5.6MB

    • memory/2104-1353-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2104-1355-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2104-1358-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2104-1359-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-1344-0x00000000007C0000-0x00000000007D2000-memory.dmp

      Filesize

      72KB

    • memory/2780-1347-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-1349-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-1364-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-1368-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/5364-1362-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/5364-1363-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/5364-1366-0x0000000006E10000-0x0000000006EA2000-memory.dmp

      Filesize

      584KB

    • memory/5364-1365-0x0000000006D20000-0x0000000006D70000-memory.dmp

      Filesize

      320KB

    • memory/5364-1361-0x0000000005900000-0x0000000005966000-memory.dmp

      Filesize

      408KB

    • memory/5364-1367-0x0000000006D90000-0x0000000006D9A000-memory.dmp

      Filesize

      40KB

    • memory/5364-1360-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/5364-1369-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB