Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-09-2024 19:42

General

  • Target

    POInvoiceXJ210821Q.PDF.exe

  • Size

    664KB

  • MD5

    ec1d27d0c50590f58a3d43b8b979e4dc

  • SHA1

    bb6768eec71bd66c50a94b21cdd059994dc264b3

  • SHA256

    c17e06753e71aa66826658cc44f2e620b39d0e52b26d7dc5747ad5966f0ae0a3

  • SHA512

    2bf4090a6bc11e8a5b2055752a51d008aedd7f4dc3483282194b9666f19840ababa805aa18dfccf6d994d46ddf4503e5abed7201556b6388d38af93e6c890aa1

  • SSDEEP

    12288:LhdPAcO4nEOS405ZbvTAuWelX2QqycJGD7uoj6C/e8bQbGsxykR:LvlS405PX2QqRGD7u/ClIGoB

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.libreriagandhi.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    x6p2^m#1#~+O

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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:868
    • 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\POInvoiceXJ210821Q.PDF.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2172
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FBEgLGhUrO.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2704
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FBEgLGhUrO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3765.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2788
    • C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.exe"
      2⤵
        PID:2568
      • C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.exe
        "C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2324

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3765.tmp

      Filesize

      1KB

      MD5

      51fb5bf24b9d335f8a29762097aa32ca

      SHA1

      5d34259239e003398d974fd4a0c475d6a9c7271c

      SHA256

      5e90ce77396e16b565471ee23c77dc15bcd36e0d50ca3862fe3ed4a362b654c5

      SHA512

      e28c546f83b0ffa6095d2fc71b9154d6d402bae3cb0f6fa7849bf688651ad1f23d8b67c034ed143f01a0cc425d19071a1f6bd1a150eefe6433e8b0b5fc55b13a

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\XQYDJ4W7EXL41RGL1V8F.temp

      Filesize

      7KB

      MD5

      efb81f36546cb1bf6d26b18f834c8dab

      SHA1

      283fb0fdbd84ffdb16380372b35bd15cded4733f

      SHA256

      572e26cf10a9a57bbe8b9a6641f8397985a4af84a41d0b9307cda4f74b6f78d9

      SHA512

      c097fff0b3e64fe4b813a05b0c6eef8bbe12d1410048732887da32645d7228216ae5870ef345888925823640a53d7352f5255ed263bb4ff93a9f1cee409762c3

    • memory/868-4-0x000000007489E000-0x000000007489F000-memory.dmp

      Filesize

      4KB

    • memory/868-32-0x0000000074890000-0x0000000074F7E000-memory.dmp

      Filesize

      6.9MB

    • memory/868-0-0x000000007489E000-0x000000007489F000-memory.dmp

      Filesize

      4KB

    • memory/868-5-0x0000000074890000-0x0000000074F7E000-memory.dmp

      Filesize

      6.9MB

    • memory/868-6-0x0000000005370000-0x00000000053F4000-memory.dmp

      Filesize

      528KB

    • memory/868-2-0x0000000074890000-0x0000000074F7E000-memory.dmp

      Filesize

      6.9MB

    • memory/868-1-0x0000000000100000-0x00000000001A8000-memory.dmp

      Filesize

      672KB

    • memory/868-3-0x0000000000350000-0x0000000000362000-memory.dmp

      Filesize

      72KB

    • memory/2324-21-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2324-28-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2324-29-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2324-31-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2324-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2324-25-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2324-23-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2324-19-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB