Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    27-04-2024 01:36

General

  • Target

    a990796f65eb709905c0f6499e3b3e64220c5bb9792db744d9c22bddbb603e87.exe

  • Size

    660KB

  • MD5

    860f88b68917d3a5f57297cc22a12129

  • SHA1

    fb3315bb96fe758eb648cc31cd938e80f73afe49

  • SHA256

    a990796f65eb709905c0f6499e3b3e64220c5bb9792db744d9c22bddbb603e87

  • SHA512

    9d8b62094c0d594009fabe5bfba60e68b16ebf13bda69cf96136054eb17dbd527cc6f11c61e4a8e061f42b60be78d143adc243e38c8dc9f1c9e01324b7c197cf

  • SSDEEP

    12288:/UF9WMwo8A2HtW8PI4sCBOOuKT+Cv8mU/eM2TCd8xD4/oNIJlDTrS3v/4:/U2MD8dHjI4tBOOuk+oA/eL+S3Ale3vw

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a990796f65eb709905c0f6499e3b3e64220c5bb9792db744d9c22bddbb603e87.exe
    "C:\Users\Admin\AppData\Local\Temp\a990796f65eb709905c0f6499e3b3e64220c5bb9792db744d9c22bddbb603e87.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:836
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a990796f65eb709905c0f6499e3b3e64220c5bb9792db744d9c22bddbb603e87.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Users\Admin\AppData\Local\Temp\a990796f65eb709905c0f6499e3b3e64220c5bb9792db744d9c22bddbb603e87.exe
      "C:\Users\Admin\AppData\Local\Temp\a990796f65eb709905c0f6499e3b3e64220c5bb9792db744d9c22bddbb603e87.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/836-0-0x0000000001210000-0x00000000012BC000-memory.dmp

    Filesize

    688KB

  • memory/836-1-0x0000000074440000-0x0000000074B2E000-memory.dmp

    Filesize

    6.9MB

  • memory/836-2-0x0000000004C70000-0x0000000004CB0000-memory.dmp

    Filesize

    256KB

  • memory/836-3-0x0000000000450000-0x0000000000468000-memory.dmp

    Filesize

    96KB

  • memory/836-4-0x0000000000610000-0x000000000061E000-memory.dmp

    Filesize

    56KB

  • memory/836-5-0x0000000000660000-0x0000000000674000-memory.dmp

    Filesize

    80KB

  • memory/836-6-0x000000000A270000-0x000000000A2F4000-memory.dmp

    Filesize

    528KB

  • memory/836-20-0x0000000074440000-0x0000000074B2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2804-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2804-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2804-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2804-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2804-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2804-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2804-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2804-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB