Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    17/10/2024, 01:06

General

  • Target

    37c956f1f3465836e42f099387cc90858675dbaa49c4135e071094f6950f3f11.exe

  • Size

    830KB

  • MD5

    da8e235a8019c40dc69522b91a7394fd

  • SHA1

    750abd7ee675fe443ae63a099ea2738ba92b9417

  • SHA256

    37c956f1f3465836e42f099387cc90858675dbaa49c4135e071094f6950f3f11

  • SHA512

    fac8477b8d527d61ae05d304e66ceb7d5ce73a4a3233ce643868403a75d479b6eea66c249a4d9f60d5b1b2c5b3c866dfe4861573737aac4618cbd18d2425f0c8

  • SSDEEP

    24576:CqZKKrVbCx3YN3QzB+aci/9Rvg9uMiv+7HaC:sKlCygX1d4P

Malware Config

Extracted

Family

agenttesla

Credentials

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 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 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 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\37c956f1f3465836e42f099387cc90858675dbaa49c4135e071094f6950f3f11.exe
    "C:\Users\Admin\AppData\Local\Temp\37c956f1f3465836e42f099387cc90858675dbaa49c4135e071094f6950f3f11.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1996
    • 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\37c956f1f3465836e42f099387cc90858675dbaa49c4135e071094f6950f3f11.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2672
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JJYwGBPRBbedw.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2752
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JJYwGBPRBbedw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF94D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2500
    • C:\Users\Admin\AppData\Local\Temp\37c956f1f3465836e42f099387cc90858675dbaa49c4135e071094f6950f3f11.exe
      "C:\Users\Admin\AppData\Local\Temp\37c956f1f3465836e42f099387cc90858675dbaa49c4135e071094f6950f3f11.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF94D.tmp

    Filesize

    1KB

    MD5

    10516ba1ed8e02907bb1a17113bb215b

    SHA1

    e97cf222580c5269dc992a61edee9c5de1f5ef12

    SHA256

    32db2745d37c76f0e2173e3f1411fe6e6c0421529e6ca81da1fae436b8210ce8

    SHA512

    38703c223abed4fc61178d56729ad60e4b3ad74d81812e1e9cb399f810859d5bb25b562715e37156e1e0859023e8ed935a20923249077c516c8d22fd02625b35

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

    Filesize

    7KB

    MD5

    7c218b40264c1f237ddfec38f06e5c3f

    SHA1

    9b2ed513d8bf170515b4b3901a01fc06ed673934

    SHA256

    9c50e109a059d8e018cdf92a5bd8542f48e7dc109f088c904c8e96df6dd09aa8

    SHA512

    898c91c410e87ecad8532886af15e96a8a9fcadebbfd9c7b6f94124b5b0289976b005460d00ecc260ea18f360106a6ba0a0f57cb2720a33d1c0acfc78075e415

  • memory/1104-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1104-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1104-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1104-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1104-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1104-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1104-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1104-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1996-6-0x00000000053D0000-0x0000000005464000-memory.dmp

    Filesize

    592KB

  • memory/1996-1-0x0000000000070000-0x0000000000144000-memory.dmp

    Filesize

    848KB

  • memory/1996-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

    Filesize

    4KB

  • memory/1996-2-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/1996-3-0x0000000000540000-0x0000000000552000-memory.dmp

    Filesize

    72KB

  • memory/1996-5-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/1996-4-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

    Filesize

    4KB

  • memory/1996-31-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB