Analysis

  • max time kernel
    117s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 02:29

General

  • Target

    df9cda22adcc6f050ef0efcf8e93248b254d4708a2616b08531911d10b2a1eb1.exe

  • Size

    660KB

  • MD5

    151f30a098966d3382974b7d05ced991

  • SHA1

    42ad172a0d55c1e71affa18aef0cb9d3d15505f9

  • SHA256

    df9cda22adcc6f050ef0efcf8e93248b254d4708a2616b08531911d10b2a1eb1

  • SHA512

    475d34b9b28011ed85ca84f43da114c080e132b09c5237eb793f6a4cf233eb6460077006dcdd50cddf0de1e33fcc307d4ee9830617711b5f5fb4f5d3630ecde4

  • SSDEEP

    12288:MlYifT4uJoZ0Ez3riLoZZPRi5N1R/XajuYNSdWzkvmvp4HzYUsWKnvrAkW6mg:biVJ80Ezb2oZZPoySgRgmvJUsWcvrAk+

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df9cda22adcc6f050ef0efcf8e93248b254d4708a2616b08531911d10b2a1eb1.exe
    "C:\Users\Admin\AppData\Local\Temp\df9cda22adcc6f050ef0efcf8e93248b254d4708a2616b08531911d10b2a1eb1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1548
    • 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\df9cda22adcc6f050ef0efcf8e93248b254d4708a2616b08531911d10b2a1eb1.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2740
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qGgTuHfRaZXZWV.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2552
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qGgTuHfRaZXZWV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF43.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2768
    • C:\Users\Admin\AppData\Local\Temp\df9cda22adcc6f050ef0efcf8e93248b254d4708a2616b08531911d10b2a1eb1.exe
      "C:\Users\Admin\AppData\Local\Temp\df9cda22adcc6f050ef0efcf8e93248b254d4708a2616b08531911d10b2a1eb1.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2416

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAF43.tmp
    Filesize

    1KB

    MD5

    8ec89327e19e302687f79038e9893925

    SHA1

    83cb26f857a15064084959627841b362966d59c0

    SHA256

    ade1fbf8f1990ad416550a8182734015805abd71bee32533bfd7bfc997dfce15

    SHA512

    9dfb4063dc80d5747b42c46f811aba25b7bfa306d164b9deee4806c1558148322b3f318f68128c686675b656fc98fc8df604ac1656fcec434a03deae0975b4cf

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\G0KZZYTG5LV7EJZH2HKL.temp
    Filesize

    7KB

    MD5

    4a1dfb7eba0e972ce183b148e4285ec6

    SHA1

    1eb9f39b125768b2e984156475696f208299a0f8

    SHA256

    90f49acb1b363de259cc433e9667d1bb38d1e86d27f4ea37c9c095a6213f862b

    SHA512

    8e357f12770eec7272f33defdcc4d4d865963932c57127faa17e352f022c030da4a64e54c7e27a79c5601de00ea957237eb5e39ac75e024372f48f46360fa940

  • memory/1548-30-0x0000000074B90000-0x000000007527E000-memory.dmp
    Filesize

    6.9MB

  • memory/1548-1-0x0000000000EC0000-0x0000000000F6A000-memory.dmp
    Filesize

    680KB

  • memory/1548-2-0x0000000074B90000-0x000000007527E000-memory.dmp
    Filesize

    6.9MB

  • memory/1548-3-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/1548-4-0x00000000002C0000-0x00000000002D0000-memory.dmp
    Filesize

    64KB

  • memory/1548-5-0x0000000005260000-0x00000000052E2000-memory.dmp
    Filesize

    520KB

  • memory/1548-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp
    Filesize

    4KB

  • memory/2416-18-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-27-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2416-24-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-22-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-20-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-28-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-29-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB