Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    26-04-2024 12:55

General

  • Target

    Packing List PDF.exe

  • Size

    822KB

  • MD5

    5a12438b3b4c926c12a9376c7bf13426

  • SHA1

    c3185c6a5e5f07a5befbe4af7131d05634f5d1a3

  • SHA256

    1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3

  • SHA512

    16c1e0e18eb8b3345b8b05443b782cb1dd35492ac986811c39f3cdce8dfe85b003aba029ffca0e38aa33c951d0d08281825152b0e239471eac3de18ac67864d0

  • SSDEEP

    12288:tEqnHvjNIrpf9rN/mc/CaBmIwsyaPSIir97G6NLOZCGKEgbjuPBB5uO12rq:txPjKr5BNDWVxcSIiRG6atlB5N

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1960
    • 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\Packing List PDF.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CmxzrHBB.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2624
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E4F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2716
    • C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4E4F.tmp
    Filesize

    1KB

    MD5

    4a7fcab985f6f121e345e5e978e6a4db

    SHA1

    d79a3b4e38cbaddd8f59208e8ba83ba09dcdbeb4

    SHA256

    26e671ef57a8ff3a8ac23b7df714806f8f4a1d90f0eeb687e5a821405c8b1af3

    SHA512

    67c14f99552d3c61b3abc4b0ccaeaf1c30e5fdaeda6a7813d66b48db69cc65a02e73b0c177f6c2c33d5dd5be2cf46bb751fcd8be78e538d674ab13b417b095ce

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\OL6MTMRR3X0LOTPLFVVA.temp
    Filesize

    7KB

    MD5

    3c905ab9b3f91cfa754e958a65dec20d

    SHA1

    bccf9c484a1fb115271887707463938d6687a253

    SHA256

    189ec8ad3787ff0e642dffaa3ace00a99cf70079e1eef85359f60558366ecf64

    SHA512

    a4e561663619d6ae4a4dba6ddd44eae83c85afcad08f8b4b00bc7c3c8c0f36e114c8dc92ff03dcb270c20051e9461a1f13f60d29c5f4811c8a9b9cea55065e95

  • memory/1960-31-0x0000000074560000-0x0000000074C4E000-memory.dmp
    Filesize

    6.9MB

  • memory/1960-1-0x0000000074560000-0x0000000074C4E000-memory.dmp
    Filesize

    6.9MB

  • memory/1960-2-0x0000000004D30000-0x0000000004D70000-memory.dmp
    Filesize

    256KB

  • memory/1960-3-0x00000000004A0000-0x00000000004C0000-memory.dmp
    Filesize

    128KB

  • memory/1960-4-0x0000000000480000-0x0000000000494000-memory.dmp
    Filesize

    80KB

  • memory/1960-5-0x00000000058F0000-0x0000000005974000-memory.dmp
    Filesize

    528KB

  • memory/1960-0-0x00000000012D0000-0x00000000013A4000-memory.dmp
    Filesize

    848KB

  • memory/2736-24-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2736-28-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2736-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2736-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2736-18-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2736-27-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2736-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2736-30-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB