Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    30-04-2024 01:17

General

  • Target

    9c878a2c13a594a4826086e2989c5899623cbab9067a3903611037bb7d0cba5c.exe

  • Size

    704KB

  • MD5

    b29505d59dc338554f8e272b09ded6e6

  • SHA1

    8bb06d59c4a3698ff2fb5e00fb6d79efc4dc33f8

  • SHA256

    9c878a2c13a594a4826086e2989c5899623cbab9067a3903611037bb7d0cba5c

  • SHA512

    49f6100c3af40c782923fca5c7a06073126cd735d92a0d67dfe79827ef59be0bac4009d83546f35e5f3e3c847e0a84fe6a4a13c6f20ffe8f10cf029b57e6c52d

  • SSDEEP

    12288:5mpzHKhnAgJiaQbU7rY0YTutlk95h33U8xRvomEpTVp1bWTO8gB778Qd:4HKJLJViOZYTMWVxqmElH1bWbgBz

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • 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).

  • 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 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c878a2c13a594a4826086e2989c5899623cbab9067a3903611037bb7d0cba5c.exe
    "C:\Users\Admin\AppData\Local\Temp\9c878a2c13a594a4826086e2989c5899623cbab9067a3903611037bb7d0cba5c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2028
    • 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\9c878a2c13a594a4826086e2989c5899623cbab9067a3903611037bb7d0cba5c.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zaxfutU.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2600
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zaxfutU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5004.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2720
    • C:\Users\Admin\AppData\Local\Temp\9c878a2c13a594a4826086e2989c5899623cbab9067a3903611037bb7d0cba5c.exe
      "C:\Users\Admin\AppData\Local\Temp\9c878a2c13a594a4826086e2989c5899623cbab9067a3903611037bb7d0cba5c.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2452

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

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\tmp5004.tmp
    Filesize

    1KB

    MD5

    21840113fb544758118faf9e4920b0b1

    SHA1

    680995ab7d7d83ed72cfe62a583c1564836bce4e

    SHA256

    da413919208774e144de81a5b3a39880540f7e494dcf41d0a7c02074caf8a54d

    SHA512

    d5714c35cf66b3069ff08c8139cc6a11832c59fc533cfceab1a6bca4613aff7005e120f6a856a3bc1c887a7aa90a50a788193188adc0897801220d6857735db5

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    Filesize

    7KB

    MD5

    6a57be6b219411dac459dee59a14782a

    SHA1

    c64b6f8403afbf83593464028968fa91c965e41b

    SHA256

    94f1b34337db5b2f76e0e8e16652cb7f9c9c14f590e8b198c95c99e00f3c18d8

    SHA512

    e78dc1ba0e678b6d28fccadf1ba90241598dec4773a754939753ff09abdb4722f1a5acc010068d796e9d9fa11b30bfc4f5e202462ea1d62531f6fca57686fdff

  • memory/2028-5-0x0000000000670000-0x0000000000686000-memory.dmp
    Filesize

    88KB

  • memory/2028-31-0x0000000074360000-0x0000000074A4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2028-0-0x0000000000130000-0x00000000001E6000-memory.dmp
    Filesize

    728KB

  • memory/2028-4-0x0000000000510000-0x000000000051E000-memory.dmp
    Filesize

    56KB

  • memory/2028-6-0x0000000002120000-0x00000000021A4000-memory.dmp
    Filesize

    528KB

  • memory/2028-2-0x0000000004DD0000-0x0000000004E10000-memory.dmp
    Filesize

    256KB

  • memory/2028-1-0x0000000074360000-0x0000000074A4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2028-3-0x00000000004B0000-0x00000000004C8000-memory.dmp
    Filesize

    96KB

  • memory/2452-21-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2452-30-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2452-29-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2452-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2452-25-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2452-23-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2452-19-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2452-28-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB