Analysis

  • max time kernel
    121s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 01:27

General

  • Target

    364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe

  • Size

    694KB

  • MD5

    a7ce361b8483aeb3d666243d6c182381

  • SHA1

    d717121422d12d09364da2d537451868fdc23c2f

  • SHA256

    364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae

  • SHA512

    005a7c289273a0b28b50392a28341cd196e377c3b4052c95cf25268fb7865a290d5e2f92aea5d804b72baa2d6cca1da8457645cce8dfa165e6c8d8a7268460d4

  • SSDEEP

    12288:n/qQ0YOwqOpZ8SkCzuq6I8p3p7rg31w22QhHA6+KbqMEjq/COHKF2wH0SyB8BM:y0O7A8STr6Jp722QhHz+HMEmbHKQCDm

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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe
    "C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SLoeKhsnbJISJ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2416
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SLoeKhsnbJISJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp403B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2472
    • C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe
      "C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe"
      2⤵
        PID:876
      • C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe
        "C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2804

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    2
    T1552

    Credentials In Files

    2
    T1552.001

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp403B.tmp
      Filesize

      1KB

      MD5

      86b624f6db88f0fd8e19e142b22964fa

      SHA1

      ae50052dfc82fe39bf94f6fdca6b99ad81d15a50

      SHA256

      2f3dc9dfbc38bc712684fb41cf29d241f55e7b3e8cbdff0643e348012827305a

      SHA512

      1775e9783692bd58d5abdfa30223aca6e6ad70384439ed6bb2c969821add3d70c2c6caffdb9a922827d594a73a417420ea4dc81dce4c2c55d7fd11076f2cb0a5

    • memory/2416-33-0x000000006E8A0000-0x000000006EE4B000-memory.dmp
      Filesize

      5.7MB

    • memory/2416-32-0x0000000002390000-0x00000000023D0000-memory.dmp
      Filesize

      256KB

    • memory/2416-30-0x000000006E8A0000-0x000000006EE4B000-memory.dmp
      Filesize

      5.7MB

    • memory/2416-29-0x000000006E8A0000-0x000000006EE4B000-memory.dmp
      Filesize

      5.7MB

    • memory/2536-2-0x0000000004E70000-0x0000000004EB0000-memory.dmp
      Filesize

      256KB

    • memory/2536-3-0x00000000004E0000-0x00000000004FA000-memory.dmp
      Filesize

      104KB

    • memory/2536-4-0x00000000004C0000-0x00000000004CC000-memory.dmp
      Filesize

      48KB

    • memory/2536-5-0x0000000004FB0000-0x0000000005034000-memory.dmp
      Filesize

      528KB

    • memory/2536-1-0x00000000745C0000-0x0000000074CAE000-memory.dmp
      Filesize

      6.9MB

    • memory/2536-11-0x00000000745C0000-0x0000000074CAE000-memory.dmp
      Filesize

      6.9MB

    • memory/2536-12-0x0000000004E70000-0x0000000004EB0000-memory.dmp
      Filesize

      256KB

    • memory/2536-27-0x00000000745C0000-0x0000000074CAE000-memory.dmp
      Filesize

      6.9MB

    • memory/2536-0-0x0000000000B30000-0x0000000000BE4000-memory.dmp
      Filesize

      720KB

    • memory/2804-18-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2804-24-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2804-26-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2804-22-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2804-28-0x00000000745C0000-0x0000000074CAE000-memory.dmp
      Filesize

      6.9MB

    • memory/2804-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

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

      264KB

    • memory/2804-31-0x0000000004AF0000-0x0000000004B30000-memory.dmp
      Filesize

      256KB

    • memory/2804-16-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

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

      264KB

    • memory/2804-35-0x00000000745C0000-0x0000000074CAE000-memory.dmp
      Filesize

      6.9MB

    • memory/2804-36-0x0000000004AF0000-0x0000000004B30000-memory.dmp
      Filesize

      256KB