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Analysis

  • max time kernel
    135s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/05/2023, 01:50

General

  • Target

    c7057a9a9f625dc07c2d893859df339831330e74a0cfb6b7677bf973f0af279f.exe

  • Size

    671KB

  • MD5

    e0b1800a3e2130e054ccb47449deaf40

  • SHA1

    0607caa0928ba90d7129371dc3c927a4e6738149

  • SHA256

    c7057a9a9f625dc07c2d893859df339831330e74a0cfb6b7677bf973f0af279f

  • SHA512

    e22f7618cc75cb83c38729924c5bdc2bcbad3d35297f08c521d8aa1c006ee65129bc1a49ce2f61e4dc85af263ce94c3bf02387b943d0d5d7095e5143f4ce68de

  • SSDEEP

    12288:P5ymzZBEP85fOqOPwoGzVqgH2qHQVBS1YbS5YILRjSBZVGSjrAArtJiRC:l9BEP8BOqywoGzVqw28QVBSQsHljeCOL

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5814058627:AAFjPgERfyp3AZJXAfISMezajcw2VR_A_9U/

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.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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
  • 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\c7057a9a9f625dc07c2d893859df339831330e74a0cfb6b7677bf973f0af279f.exe
    "C:\Users\Admin\AppData\Local\Temp\c7057a9a9f625dc07c2d893859df339831330e74a0cfb6b7677bf973f0af279f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:264
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\oJQHsIjJ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4260
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oJQHsIjJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB51.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3936
    • C:\Users\Admin\AppData\Local\Temp\c7057a9a9f625dc07c2d893859df339831330e74a0cfb6b7677bf973f0af279f.exe
      "C:\Users\Admin\AppData\Local\Temp\c7057a9a9f625dc07c2d893859df339831330e74a0cfb6b7677bf973f0af279f.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_geqxm1oa.sof.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpBB51.tmp

    Filesize

    1KB

    MD5

    a45880a3cab30abf166e54dbaf8b34a8

    SHA1

    e9b3dd787e8e1e38d9dda52374b319a16bef804b

    SHA256

    aa92a012c9eb1f56f961e26c785b5ada538f4138f54977006983b168d3db2b3e

    SHA512

    a9453d91dac49bc5b353eb3df5dd9106e0c838a4ddf0133b135a03f3af1a19fa75bdb864ea71483f87e1c992c4c07fc472b28e939864994ace3579a067699369

  • memory/264-139-0x0000000007810000-0x00000000078AC000-memory.dmp

    Filesize

    624KB

  • memory/264-136-0x0000000005750000-0x000000000575A000-memory.dmp

    Filesize

    40KB

  • memory/264-137-0x0000000005740000-0x0000000005750000-memory.dmp

    Filesize

    64KB

  • memory/264-138-0x0000000005740000-0x0000000005750000-memory.dmp

    Filesize

    64KB

  • memory/264-135-0x00000000057D0000-0x0000000005862000-memory.dmp

    Filesize

    584KB

  • memory/264-134-0x0000000005D80000-0x0000000006324000-memory.dmp

    Filesize

    5.6MB

  • memory/264-133-0x0000000000CE0000-0x0000000000D8E000-memory.dmp

    Filesize

    696KB

  • memory/1772-197-0x0000000004DB0000-0x0000000004DC0000-memory.dmp

    Filesize

    64KB

  • memory/1772-185-0x0000000006B90000-0x0000000006D52000-memory.dmp

    Filesize

    1.8MB

  • memory/1772-147-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1772-184-0x0000000006970000-0x00000000069C0000-memory.dmp

    Filesize

    320KB

  • memory/1772-164-0x0000000004DB0000-0x0000000004DC0000-memory.dmp

    Filesize

    64KB

  • memory/4260-158-0x0000000005B40000-0x0000000005BA6000-memory.dmp

    Filesize

    408KB

  • memory/4260-179-0x000000007EF70000-0x000000007EF80000-memory.dmp

    Filesize

    64KB

  • memory/4260-148-0x00000000051E0000-0x0000000005202000-memory.dmp

    Filesize

    136KB

  • memory/4260-163-0x00000000061C0000-0x00000000061DE000-memory.dmp

    Filesize

    120KB

  • memory/4260-151-0x0000000004CF0000-0x0000000004D00000-memory.dmp

    Filesize

    64KB

  • memory/4260-165-0x0000000004CF0000-0x0000000004D00000-memory.dmp

    Filesize

    64KB

  • memory/4260-166-0x0000000007180000-0x00000000071B2000-memory.dmp

    Filesize

    200KB

  • memory/4260-167-0x00000000707C0000-0x000000007080C000-memory.dmp

    Filesize

    304KB

  • memory/4260-177-0x0000000006760000-0x000000000677E000-memory.dmp

    Filesize

    120KB

  • memory/4260-152-0x0000000005AD0000-0x0000000005B36000-memory.dmp

    Filesize

    408KB

  • memory/4260-180-0x0000000007B10000-0x000000000818A000-memory.dmp

    Filesize

    6.5MB

  • memory/4260-181-0x00000000074C0000-0x00000000074DA000-memory.dmp

    Filesize

    104KB

  • memory/4260-182-0x0000000007530000-0x000000000753A000-memory.dmp

    Filesize

    40KB

  • memory/4260-183-0x0000000007740000-0x00000000077D6000-memory.dmp

    Filesize

    600KB

  • memory/4260-150-0x0000000004CF0000-0x0000000004D00000-memory.dmp

    Filesize

    64KB

  • memory/4260-146-0x0000000005330000-0x0000000005958000-memory.dmp

    Filesize

    6.2MB

  • memory/4260-192-0x00000000076F0000-0x00000000076FE000-memory.dmp

    Filesize

    56KB

  • memory/4260-193-0x0000000007800000-0x000000000781A000-memory.dmp

    Filesize

    104KB

  • memory/4260-194-0x00000000077E0000-0x00000000077E8000-memory.dmp

    Filesize

    32KB

  • memory/4260-144-0x0000000004C20000-0x0000000004C56000-memory.dmp

    Filesize

    216KB