Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 06:20

General

  • Target

    PO Invoice XJ210821Q.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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO Invoice XJ210821Q.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\PO Invoice XJ210821Q.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:3024
    • 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\PO Invoice XJ210821Q.PDF.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2660
    • 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:2672
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FBEgLGhUrO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2A8A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2784
    • C:\Users\Admin\AppData\Local\Temp\PO Invoice XJ210821Q.PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\PO Invoice XJ210821Q.PDF.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2A8A.tmp

    Filesize

    1KB

    MD5

    88f415833bb1f0a32ebe142505311f24

    SHA1

    688a8f0f1e45954b414c70eb479746981161ebee

    SHA256

    838a5a2cbe31e561f273089b49ef35e934fea2098de9df78c19cc81824b5d9fe

    SHA512

    c91f75619c9a349f3d7846d4bffaec25c7080aa230edcdc6355c80c7f81f8138376f31004e7a941516bfc2c90cbc6436abc188343379da60db92db83628deb17

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

    Filesize

    7KB

    MD5

    28d21b4bd0089aa8158671ba69d119a5

    SHA1

    8d254c14c5c807d02a6071b61052ebffee012be4

    SHA256

    956e23172b28c17b3175fef552cafbbd4398a11b6a4678427db42935ea54e59d

    SHA512

    36c6efb7058615612570a03169b4cff1636c49d80fc3a22649a631febaf3e08af5b5c11077780dc4e937019d0fc6e367d471a401fe4933993361d2a7943a73a6

  • memory/2572-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2572-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2572-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2572-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2572-26-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2572-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2572-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2572-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3024-6-0x0000000005240000-0x00000000052C4000-memory.dmp

    Filesize

    528KB

  • memory/3024-1-0x0000000000010000-0x00000000000B8000-memory.dmp

    Filesize

    672KB

  • memory/3024-0-0x0000000073EEE000-0x0000000073EEF000-memory.dmp

    Filesize

    4KB

  • memory/3024-2-0x0000000073EE0000-0x00000000745CE000-memory.dmp

    Filesize

    6.9MB

  • memory/3024-3-0x0000000000410000-0x0000000000422000-memory.dmp

    Filesize

    72KB

  • memory/3024-5-0x0000000073EE0000-0x00000000745CE000-memory.dmp

    Filesize

    6.9MB

  • memory/3024-4-0x0000000073EEE000-0x0000000073EEF000-memory.dmp

    Filesize

    4KB

  • memory/3024-31-0x0000000073EE0000-0x00000000745CE000-memory.dmp

    Filesize

    6.9MB