Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2024 01:10

General

  • Target

    DETAILS.exe

  • Size

    728KB

  • MD5

    339649aa12a77cfcc09c7b07fc9d7f52

  • SHA1

    038ef4d52e2553340063d713660a1c4aa1fb7619

  • SHA256

    922ed44d8e5c7526f172f18f7f2bcb352ae3c89295aa0b18448e6e18892ec4ef

  • SHA512

    c329d09e06adf39e27ea380ada1913ecf3ef4211c3edcd1f3c1515f55fc0e9360e256efe7f1adc57852e56905e0376b61c87151e543bf8461e2e12c5d52196c2

  • SSDEEP

    12288:3JglQx+3ZRl5RY4btD+K5t7UQC4u88ildNMPbUrpOwD4muneIjRxmL87vWX1pfSf:ZpxQRhtV88dgbUdOwTunGL8j15ya0M

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 2 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DETAILS.exe
    "C:\Users\Admin\AppData\Local\Temp\DETAILS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1632
    • 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\DETAILS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2036
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TQUDbFDZarHZ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2528
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TQUDbFDZarHZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5254.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2632
    • C:\Users\Admin\AppData\Local\Temp\DETAILS.exe
      "C:\Users\Admin\AppData\Local\Temp\DETAILS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2208

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\tmp5254.tmp
    Filesize

    1KB

    MD5

    0937b4d0c916fbdc0a2fff4e9a19703d

    SHA1

    d77996dad2bf5863e547ad1d79111e64fa396b4a

    SHA256

    adeae72731483c0f86ec52001592662e8a3d26aa844653896c4759b6626e4c01

    SHA512

    a59bb9a4a6c9cd8486b0cc4466bc2f70bb9215601e4c8441b4e2edd9bea8a0fbc22d7d320f6caaca0970089dda99841bb5a75005d29b548889bc4f544e67aaf3

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\OFZ1X975TDXTOVCMNOK0.temp
    Filesize

    7KB

    MD5

    b5254808dd77699372590f5711ed5e31

    SHA1

    c5ce62db64a7c16a48c5600204af132a32e034f6

    SHA256

    798edb94799998f0a9c950d479ff097412feb1be2d6131db89f8267a09bb6592

    SHA512

    017e3d3ad525e9733a19fc7688ae61323d16793cec30dc42212b6b05ccc1f5468cd9953fd637415cbfa9a738050de421e21c2a9ae1a239f45fb603cb12096dea

  • memory/1632-3-0x0000000001F90000-0x0000000001FA2000-memory.dmp
    Filesize

    72KB

  • memory/1632-4-0x0000000001FA0000-0x0000000001FAC000-memory.dmp
    Filesize

    48KB

  • memory/1632-5-0x0000000005DB0000-0x0000000005E34000-memory.dmp
    Filesize

    528KB

  • memory/1632-2-0x0000000001E90000-0x0000000001ED0000-memory.dmp
    Filesize

    256KB

  • memory/1632-1-0x0000000074640000-0x0000000074D2E000-memory.dmp
    Filesize

    6.9MB

  • memory/1632-0-0x0000000000050000-0x000000000010A000-memory.dmp
    Filesize

    744KB

  • memory/1632-30-0x0000000074640000-0x0000000074D2E000-memory.dmp
    Filesize

    6.9MB

  • memory/2036-35-0x0000000002AA0000-0x0000000002AE0000-memory.dmp
    Filesize

    256KB

  • memory/2036-40-0x000000006E670000-0x000000006EC1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2036-39-0x000000006E670000-0x000000006EC1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2036-24-0x000000006E670000-0x000000006EC1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2036-26-0x0000000002AA0000-0x0000000002AE0000-memory.dmp
    Filesize

    256KB

  • memory/2036-34-0x0000000002AA0000-0x0000000002AE0000-memory.dmp
    Filesize

    256KB

  • memory/2208-18-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2208-19-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2208-21-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2208-31-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2208-44-0x0000000000A60000-0x0000000000AA0000-memory.dmp
    Filesize

    256KB

  • memory/2208-43-0x00000000745E0000-0x0000000074CCE000-memory.dmp
    Filesize

    6.9MB

  • memory/2208-36-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2208-42-0x0000000000A60000-0x0000000000AA0000-memory.dmp
    Filesize

    256KB

  • memory/2208-28-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2208-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2208-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2208-41-0x00000000745E0000-0x0000000074CCE000-memory.dmp
    Filesize

    6.9MB

  • memory/2528-22-0x000000006E670000-0x000000006EC1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2528-38-0x000000006E670000-0x000000006EC1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2528-37-0x0000000002A70000-0x0000000002AB0000-memory.dmp
    Filesize

    256KB

  • memory/2528-27-0x0000000002A70000-0x0000000002AB0000-memory.dmp
    Filesize

    256KB

  • memory/2528-32-0x000000006E670000-0x000000006EC1B000-memory.dmp
    Filesize

    5.7MB