Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2024 17:45

General

  • Target

    HWID Changer by SILENQER/HWID Changer.exe

  • Size

    237KB

  • MD5

    aee0ba7c69ab3449557a52ed4e6fe7db

  • SHA1

    a9700d9644b4f88f9d8232096719f1428402c8b1

  • SHA256

    2e93d89eefb4edf698d8f695c93efe3e797c01655af6194b5c0d566f37a365fd

  • SHA512

    ed0af7dbb27d10e47661c6d6fcea0753fb423f012f47bc2ea6b11bb8fdfe699e1f2cf482248450553d5813c894460bca4de51e655c216e08a87ac805108bf8b5

  • SSDEEP

    3072:r4llGPkV6jW+tKFh36Lv+GSBADfBZRBadxlv:r6lGsMrETGmALon

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    Remcos

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/fBSseKkF

  • delay

    3

  • download_payload

    false

  • install

    false

  • install_name

    Wservices.exe

  • main_folder

    Temp

  • pin_spread

    false

  • sub_folder

    \

  • usb_spread

    false

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/fBSseKkF

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Limerat family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 24 IoCs
  • Loads dropped DLL 41 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 28 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 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 19 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HWID Changer by SILENQER\HWID Changer.exe
    "C:\Users\Admin\AppData\Local\Temp\HWID Changer by SILENQER\HWID Changer.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Users\Admin\AppData\Local\Temp\HWID Changer by SILENQER\compreg\Launcher.exe
      "C:\Users\Admin\AppData\Local\Temp\HWID Changer by SILENQER\compreg\Launcher.exe"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath C:\Windows\IMF\
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3064
      • C:\Windows\IMF\Windows Services.exe
        "C:\Windows\IMF\Windows Services.exe" {Arguments If Needed}
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3024
        • C:\Windows\IMF\Secure System Shell.exe
          "C:\Windows\IMF\Secure System Shell.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2968
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2956
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2136
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2148
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2164
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2132
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1608
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2540
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:684
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2792
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2640
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2008
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1072
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2140
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1976
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2096
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2988
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2768
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:3064
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1940
    • C:\Users\Admin\AppData\Local\Temp\HWID Changer by SILENQER\compreg\config.exe
      "C:\Users\Admin\AppData\Local\Temp\HWID Changer by SILENQER\compreg\config.exe"
      2⤵
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Program Files\MSextract\MSbuild.exe
        "C:\Program Files\MSextract\MSbuild.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2680
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TcjPCP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC8CB.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:612
        • C:\Program Files\MSextract\MSbuild.exe
          "{path}"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1508
      • C:\Program Files\MSextract\HWID Changer.exe
        "C:\Program Files\MSextract\HWID Changer.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\MSextract\HWID Changer.exe

    Filesize

    885KB

    MD5

    43c147d6afafbf546ac6fdfe4ae049c9

    SHA1

    faf2ced44d5794372c0c42b32d47f68580e18dbf

    SHA256

    9ecccf1c26e43ca90cf997dc0ecd3e1ef6f3405a8bc46583725bc7e1d27fd235

    SHA512

    249b1c7130c3dd9c315c2eeafdb2748d0c97b9cd710056b36d983785e01185e308ef2a1c80d0c1d7adce05557b6b70ac7dcf581be7975836651ef98673fa7bb8

  • C:\Program Files\MSextract\MSbuild.exe

    Filesize

    858KB

    MD5

    a71cd5886cca33a25f832a1ed37bc4af

    SHA1

    7bacf2f5f80c03a298528106a34db71951a1e94e

    SHA256

    8c5b2aa9fc23e7e50d09bb41c9729efd821e6094a0477a65054ff20938723d88

    SHA512

    eb672552875d873dd2e5518ac022e99e0a8531a52f9d67f2dbaf09b66809483a7881fbf46472ed9f38df9bb46bd89016a53220fbf38149a2c507efda0a66be03

  • C:\Users\Admin\AppData\Local\Temp\tmpC8CB.tmp

    Filesize

    1KB

    MD5

    3cd1b744efeb9f0e1bf235bac97dfdce

    SHA1

    86c59a277e2a00d9846785932cd13c9b200fed12

    SHA256

    f2509546a74a96ac1bfca471391aa158f244309c3a630a3e7a913919d31d4fc5

    SHA512

    8d2218442001447e02223f0f77b06d68186baa10933908131e84764d15834966df2c45af0c6289dd6a9d9f3189d4c5ee734f88fb53fd0f2792af24588dc572d6

  • C:\Windows\IMF\Runtime Explorer.exe

    Filesize

    152KB

    MD5

    03f5e0141f4519f0c5ac26ce0b036a0f

    SHA1

    4f7a2a230e7a194a898cc9f2d563ac8777fe99c0

    SHA256

    78a408c628e33e3332645f480ee7ce01b5dc24fc96cf16ffa0868d43f3d421ef

    SHA512

    86a68f040654006e06b51c5714e0d7168d0d1bef7f3c39843632068104f773f771d21be4bc251d712f3e915cd1058f89ad31d9e3f3d9e7cf6da6785cbf22d8d7

  • C:\Windows\IMF\Secure System Shell.exe

    Filesize

    45KB

    MD5

    7d0c7359e5b2daa5665d01afdc98cc00

    SHA1

    c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

    SHA256

    f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

    SHA512

    a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

  • C:\Windows\IMF\Windows Services.exe

    Filesize

    46KB

    MD5

    ad0ce1302147fbdfecaec58480eb9cf9

    SHA1

    874efbc76e5f91bc1425a43ea19400340f98d42b

    SHA256

    2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

    SHA512

    adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

  • memory/1508-111-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1508-118-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1508-117-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1508-113-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1508-121-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1508-115-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1508-120-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2492-8-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2492-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

    Filesize

    4KB

  • memory/2492-2-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2492-1-0x0000000000F00000-0x0000000000F42000-memory.dmp

    Filesize

    264KB

  • memory/2580-38-0x0000000000F60000-0x0000000001044000-memory.dmp

    Filesize

    912KB

  • memory/2680-107-0x0000000000540000-0x0000000000570000-memory.dmp

    Filesize

    192KB

  • memory/2680-80-0x00000000003F0000-0x0000000000404000-memory.dmp

    Filesize

    80KB

  • memory/2680-106-0x0000000005F20000-0x0000000005FA4000-memory.dmp

    Filesize

    528KB

  • memory/2680-24-0x00000000013C0000-0x000000000149C000-memory.dmp

    Filesize

    880KB

  • memory/2836-69-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-7-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-6-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-5-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-4-0x0000000000450000-0x00000000004CE000-memory.dmp

    Filesize

    504KB

  • memory/2836-3-0x00000000002F0000-0x0000000000304000-memory.dmp

    Filesize

    80KB

  • memory/2968-74-0x00000000000D0000-0x00000000000E2000-memory.dmp

    Filesize

    72KB

  • memory/3024-68-0x0000000000DF0000-0x0000000000E02000-memory.dmp

    Filesize

    72KB