Analysis

  • max time kernel
    122s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-09-2024 08:42

General

  • Target

    567890760980.scr.exe

  • Size

    770KB

  • MD5

    2dcd12a2792c0f2cb39ecd4c7e20ab4f

  • SHA1

    d5fc868e09452d93f513620bf597daceed71f3ee

  • SHA256

    49a6d4dde10788e5000df6a0fad4be9ab17567fd1314b64c3d7be0257adcbc65

  • SHA512

    de7e706e6cdb87b018d6436abb2fd44f1a496de9c914fcbd8aa722bb04123c627aab905c125f8ee7a4d95fe029598b1d34f232b72dc26b3831cf98f0ccfba292

  • SSDEEP

    12288:w1ZF8Kmih8yenE8TL9XnbHBPSrwLokrRWh1Y8CRLfvTWsuXPRZtdAiMuL3TeB:wylihWhX9nV60skr+vCRLfLUXdd6uY

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Signatures

  • AgentTesla

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

  • 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 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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\567890760980.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\567890760980.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2328
    • 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\567890760980.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2880
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EedSBllZi.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2252
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EedSBllZi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6393.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2836
    • C:\Users\Admin\AppData\Local\Temp\567890760980.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\567890760980.scr.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6393.tmp

    Filesize

    1KB

    MD5

    728f86d4a9d0224fb42c54b7dc24e3a4

    SHA1

    b7d18bdd7abe6ae914b1cb3d73ec6920c6d7341f

    SHA256

    120bea68c2f4dec5d85bb8a90c167a6e39a8608c5245e592d38be6f31f130e10

    SHA512

    0388ced4de0ed2faea73754dc4049e94e1c40853c5e8ec971c9c216bf7e1caba13e47a1e80fc588a2a54ab2c7ee554b76957ef71daeb7576b4aa16ffbd7c0efa

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

    Filesize

    7KB

    MD5

    3fa9186e61e53a9f01d44388c754d9fb

    SHA1

    e3d62ff8d2f03cbac8f13e4b5df51dc67cdc9a5a

    SHA256

    0452d20a7506bacbe454d52f31b448b9d858bef7477529e80309630c06948814

    SHA512

    3a1c4c0e0fad9c110372c1d51b4fef7cba5f3e3826d97f937b68f85718f9adc2339c40d678c28c559bb141e8ca7341582b34aab4997d989b37493daef93b9b28

  • memory/2328-4-0x00000000748CE000-0x00000000748CF000-memory.dmp

    Filesize

    4KB

  • memory/2328-32-0x00000000748C0000-0x0000000074FAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2328-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

    Filesize

    4KB

  • memory/2328-5-0x00000000748C0000-0x0000000074FAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2328-6-0x00000000007E0000-0x0000000000864000-memory.dmp

    Filesize

    528KB

  • memory/2328-2-0x00000000748C0000-0x0000000074FAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2328-1-0x0000000000920000-0x00000000009E6000-memory.dmp

    Filesize

    792KB

  • memory/2328-3-0x0000000000880000-0x000000000089E000-memory.dmp

    Filesize

    120KB

  • memory/2648-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2648-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-31-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB