Analysis

  • max time kernel
    35s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2023 17:18

General

  • Target

    aaa7f269998ab8f868fc880124e6e15e7872f32d3508d54a90fc1cdf443a8322.exe

  • Size

    756KB

  • MD5

    0f336e8e46a795e9dff2585f72e46c22

  • SHA1

    4da7e197b297756abde642d83b208ed3498775fb

  • SHA256

    aaa7f269998ab8f868fc880124e6e15e7872f32d3508d54a90fc1cdf443a8322

  • SHA512

    691c2fba7679417bb95a968bab7608ca292fe8659ad69936fed913a7d54cd61d766862d180379191fe346cd8abd2bb0eefb7837a12e989af1eb428c74acc961b

  • SSDEEP

    12288:szQIYsNpaWi59B582PHa2dT3/36vKMtwRMmVcKMl/GT+3+2+W9Y:sz/859B582P62db/23wRMJl6JhoY

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.aksumer.com
  • Port:
    21
  • Username:
    aksumerc
  • Password:
    211116.kS*-

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 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aaa7f269998ab8f868fc880124e6e15e7872f32d3508d54a90fc1cdf443a8322.exe
    "C:\Users\Admin\AppData\Local\Temp\aaa7f269998ab8f868fc880124e6e15e7872f32d3508d54a90fc1cdf443a8322.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2900
    • C:\Users\Admin\AppData\Local\Temp\aaa7f269998ab8f868fc880124e6e15e7872f32d3508d54a90fc1cdf443a8322.exe
      "C:\Users\Admin\AppData\Local\Temp\aaa7f269998ab8f868fc880124e6e15e7872f32d3508d54a90fc1cdf443a8322.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2900-0-0x0000000000D30000-0x0000000000DF4000-memory.dmp

    Filesize

    784KB

  • memory/2900-1-0x0000000074B60000-0x000000007524E000-memory.dmp

    Filesize

    6.9MB

  • memory/2900-2-0x0000000004F50000-0x0000000004F90000-memory.dmp

    Filesize

    256KB

  • memory/2900-3-0x00000000003F0000-0x0000000000406000-memory.dmp

    Filesize

    88KB

  • memory/2900-5-0x0000000000540000-0x000000000054A000-memory.dmp

    Filesize

    40KB

  • memory/2900-4-0x0000000000480000-0x0000000000488000-memory.dmp

    Filesize

    32KB

  • memory/2900-6-0x0000000006210000-0x000000000629A000-memory.dmp

    Filesize

    552KB

  • memory/2900-18-0x0000000074B60000-0x000000007524E000-memory.dmp

    Filesize

    6.9MB

  • memory/2932-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2932-21-0x0000000000860000-0x00000000008A0000-memory.dmp

    Filesize

    256KB

  • memory/2932-20-0x0000000074B60000-0x000000007524E000-memory.dmp

    Filesize

    6.9MB

  • memory/2932-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2932-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2932-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2932-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2932-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2932-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2932-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2932-22-0x0000000074B60000-0x000000007524E000-memory.dmp

    Filesize

    6.9MB

  • memory/2932-23-0x0000000000860000-0x00000000008A0000-memory.dmp

    Filesize

    256KB