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Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2023, 12:19

General

  • Target

    eecdf61f19a47b61d84f48d73575337a788373567568d795108e9a54d4a1d811.exe

  • Size

    939KB

  • MD5

    401d1a480f9b8dc646a7bb349b7c8af4

  • SHA1

    45939070da433b5ef38081df24620d87f38a689d

  • SHA256

    eecdf61f19a47b61d84f48d73575337a788373567568d795108e9a54d4a1d811

  • SHA512

    648a7ef49f39309c675abce53c1c0ea2fe17c9ab4bbc7480f901bfecee3f5b9076be2f74128a7d0a1bdc65c9257403a27cb5d63d16e4a89d9796285405a90f42

  • SSDEEP

    24576:gH1BndpkB/NPQNRF7kVqeYVMS0k7OTP8U1T2s0O8BD48rWHFDW+1RUr:idc/NoNP7kvkMS02OTPP5L0O8BD48rWo

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

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eecdf61f19a47b61d84f48d73575337a788373567568d795108e9a54d4a1d811.exe
    "C:\Users\Admin\AppData\Local\Temp\eecdf61f19a47b61d84f48d73575337a788373567568d795108e9a54d4a1d811.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3348
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cXwADOUrDOBuam" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF189.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4080
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:3692
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4180

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpF189.tmp

      Filesize

      1KB

      MD5

      80d16db8da25d589bc777d00edf3c14c

      SHA1

      13f438f7584163f9a0e282a5fbfcc9b48f7a23c3

      SHA256

      788ba6e4171e58aa4a62a48f5c1e9ca5f126d9a4c9c40224136623abd72dac0b

      SHA512

      25e5199538a0be85c208cd5c7984337edcfeea43df58813a0807d5119c408f5b01a10f467d6024d8a1d4b0542411e4d06565ff7ffbfaea6e7cd9dc1b2635fb84

    • memory/3348-141-0x0000000005480000-0x0000000005490000-memory.dmp

      Filesize

      64KB

    • memory/3348-133-0x00000000008E0000-0x00000000009D0000-memory.dmp

      Filesize

      960KB

    • memory/3348-136-0x0000000005490000-0x0000000005522000-memory.dmp

      Filesize

      584KB

    • memory/3348-137-0x0000000005480000-0x0000000005490000-memory.dmp

      Filesize

      64KB

    • memory/3348-138-0x0000000005420000-0x000000000542A000-memory.dmp

      Filesize

      40KB

    • memory/3348-139-0x00000000056A0000-0x00000000056F6000-memory.dmp

      Filesize

      344KB

    • memory/3348-135-0x00000000059A0000-0x0000000005F44000-memory.dmp

      Filesize

      5.6MB

    • memory/3348-134-0x0000000005350000-0x00000000053EC000-memory.dmp

      Filesize

      624KB

    • memory/3348-140-0x0000000006C90000-0x0000000006E36000-memory.dmp

      Filesize

      1.6MB

    • memory/4180-145-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/4180-147-0x0000000005180000-0x00000000051E6000-memory.dmp

      Filesize

      408KB

    • memory/4180-148-0x0000000005400000-0x0000000005410000-memory.dmp

      Filesize

      64KB

    • memory/4180-150-0x0000000006510000-0x0000000006560000-memory.dmp

      Filesize

      320KB

    • memory/4180-151-0x0000000006730000-0x00000000068F2000-memory.dmp

      Filesize

      1.8MB

    • memory/4180-152-0x0000000005400000-0x0000000005410000-memory.dmp

      Filesize

      64KB