Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26-04-2024 09:41

General

  • Target

    Invoice.exe

  • Size

    822KB

  • MD5

    df0a67f2a0c162c5a5dee0a8fcd8ab22

  • SHA1

    07981693f5b38fa99a88aca0e13ba5b6022b1465

  • SHA256

    e62255f98543e0bb1abf017af13fd483e1382158021b7edde65fa55c1ad290cf

  • SHA512

    b62ea9a4710dfc855cfd47f2c0cb8787c9ea6b1159387431d1cc70b5989dd59086aaadd62e42fea9b21d28834b6ece20dc1715245762d026e48e315544529f75

  • SSDEEP

    12288:zPqnHvjNIrpf9rN/mc/CQw5PXdFPemY3kI26WE+34DO2IOxzV2SYm9nEix9H82rF:zyPjKr5BNDuXvfY0RfmIkzLNP5rJ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.starmech.net
  • Port:
    587
  • Username:
    electronics@starmech.net
  • Password:
    nics123
  • Email To:
    godwingodwin397@gmail.com

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2972
    • 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\Invoice.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2392
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kaJNzBnxbXm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2544
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kaJNzBnxbXm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4875.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2632
    • C:\Users\Admin\AppData\Local\Temp\Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2676

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

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\tmp4875.tmp
    Filesize

    1KB

    MD5

    0455b02931d0e95c81f444c566d089e6

    SHA1

    d2f826fed018db9a441e8c2a2728e29e112897e3

    SHA256

    27d60597e0090e890652e92f1bc798e7b80ce3afbdaaa10e3ce376ce1395eee9

    SHA512

    45e160e7c22a7478bb7c548e8ab1b337e7f8f8e7cbb01c5478d87e89b22dcaf1965ff4fb998d7f3d7e42be87cc02e60b4dd6a5d9c8c310128385bc58ab701cfe

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\M69P8G3A2MSOFQ0ZDHY2.temp
    Filesize

    7KB

    MD5

    11f1aa5a9959d5f5175c8eeb081cc7f2

    SHA1

    a307b7c3acea5c6d70ae5d1b094cef2e0dd80df1

    SHA256

    6f8f3ee32f14948f76bcb82d09b1733eb8b36f44bc117dd7fe796892cfef9d53

    SHA512

    fdfd7b9cc405d46abeee0f9a0e05bc420f5f8ceaeb1eb46ebe0375e566a9ba4b923e9a40c51f244d882d00e005384bf0a8a24521818f63bf1e1616a57d86feae

  • memory/2392-26-0x000000006EC60000-0x000000006F20B000-memory.dmp
    Filesize

    5.7MB

  • memory/2392-43-0x000000006EC60000-0x000000006F20B000-memory.dmp
    Filesize

    5.7MB

  • memory/2392-33-0x00000000029A0000-0x00000000029E0000-memory.dmp
    Filesize

    256KB

  • memory/2392-39-0x00000000029A0000-0x00000000029E0000-memory.dmp
    Filesize

    256KB

  • memory/2392-32-0x000000006EC60000-0x000000006F20B000-memory.dmp
    Filesize

    5.7MB

  • memory/2392-28-0x00000000029A0000-0x00000000029E0000-memory.dmp
    Filesize

    256KB

  • memory/2544-30-0x000000006EC60000-0x000000006F20B000-memory.dmp
    Filesize

    5.7MB

  • memory/2544-24-0x000000006EC60000-0x000000006F20B000-memory.dmp
    Filesize

    5.7MB

  • memory/2544-42-0x000000006EC60000-0x000000006F20B000-memory.dmp
    Filesize

    5.7MB

  • memory/2544-37-0x0000000002880000-0x00000000028C0000-memory.dmp
    Filesize

    256KB

  • memory/2544-41-0x0000000002880000-0x00000000028C0000-memory.dmp
    Filesize

    256KB

  • memory/2676-40-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2676-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2676-18-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2676-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2676-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2676-25-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2676-31-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2676-36-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2972-5-0x0000000005A80000-0x0000000005B02000-memory.dmp
    Filesize

    520KB

  • memory/2972-3-0x0000000000380000-0x00000000003A0000-memory.dmp
    Filesize

    128KB

  • memory/2972-2-0x00000000020E0000-0x0000000002120000-memory.dmp
    Filesize

    256KB

  • memory/2972-35-0x0000000074110000-0x00000000747FE000-memory.dmp
    Filesize

    6.9MB

  • memory/2972-4-0x0000000000330000-0x0000000000344000-memory.dmp
    Filesize

    80KB

  • memory/2972-0-0x0000000000020000-0x00000000000F4000-memory.dmp
    Filesize

    848KB

  • memory/2972-1-0x0000000074110000-0x00000000747FE000-memory.dmp
    Filesize

    6.9MB