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Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    23/10/2023, 09:34

General

  • Target

    A3QKP6E1.EXE.exe

  • Size

    726KB

  • MD5

    3eaa0df0516ba7f6f47f9b36846e6ffc

  • SHA1

    78108ea78b491bb5c5f71bff598f67fc695fa801

  • SHA256

    ea85d3b8e5460295de4961afc0dada2d5251369539869353ec2aa6003772207c

  • SHA512

    9523c6720445fcb894e40ec7387959dfcd059b2b6b7a2e91dfb2331ce0053f03c8b1019fc5c8a72769791a852ab56871161914f33ab311561356d6b2a04da0c5

  • SSDEEP

    12288:HSX9K7R4SMvuvTXQNTaK3w4EZwtyB9U9yZoBszL:HStoRmEDQNTRwZwQPU9Yo+

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\A3QKP6E1.EXE.exe
    "C:\Users\Admin\AppData\Local\Temp\A3QKP6E1.EXE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YpJNyD.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2792
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YpJNyD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD308.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2716
    • C:\Users\Admin\AppData\Local\Temp\A3QKP6E1.EXE.exe
      "C:\Users\Admin\AppData\Local\Temp\A3QKP6E1.EXE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD308.tmp

    Filesize

    1KB

    MD5

    bcfebb883c5091411937ba3b2655e559

    SHA1

    fc4ba9c0b14f2565d071faf078d2d772a95fea80

    SHA256

    fe12751a733ffcf89976de62a8b54ccaf341fa855112d9910fc5c32a91042dd6

    SHA512

    f38095ab966bdf7a234bf6e103454fc27c90cbf6a9ceba421fef31d7cf8de42ff9cae01ab8cdb7e764c209427ff742d15a31313f58e961e2c1a7123a8bdfd96c

  • memory/1928-0-0x0000000000C40000-0x0000000000CFC000-memory.dmp

    Filesize

    752KB

  • memory/1928-1-0x0000000074500000-0x0000000074BEE000-memory.dmp

    Filesize

    6.9MB

  • memory/1928-2-0x0000000000710000-0x0000000000750000-memory.dmp

    Filesize

    256KB

  • memory/1928-3-0x00000000004F0000-0x000000000050C000-memory.dmp

    Filesize

    112KB

  • memory/1928-4-0x0000000074500000-0x0000000074BEE000-memory.dmp

    Filesize

    6.9MB

  • memory/1928-5-0x0000000000710000-0x0000000000750000-memory.dmp

    Filesize

    256KB

  • memory/1928-6-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/1928-7-0x00000000074B0000-0x000000000752A000-memory.dmp

    Filesize

    488KB

  • memory/1928-28-0x0000000074500000-0x0000000074BEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2788-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2788-15-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2788-17-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2788-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2788-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2788-27-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2788-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2788-20-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2788-35-0x0000000074500000-0x0000000074BEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2788-31-0x0000000074500000-0x0000000074BEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2792-30-0x000000006E8D0000-0x000000006EE7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2792-32-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB

  • memory/2792-33-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB

  • memory/2792-34-0x000000006E8D0000-0x000000006EE7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2792-29-0x000000006E8D0000-0x000000006EE7B000-memory.dmp

    Filesize

    5.7MB