Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2024 17:57

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 2 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 2 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 11 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 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4120
    • 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
      • 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:1096
      • 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:4476
      • C:\Windows\IMF\Windows Services.exe
        "C:\Windows\IMF\Windows Services.exe" {Arguments If Needed}
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4732
        • 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:1544
        • C:\Windows\IMF\Runtime Explorer.exe
          "C:\Windows\IMF\Runtime Explorer.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3572
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath C:\Users\Admin\AppData\Roaming\
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1044
    • 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:2344
      • C:\Program Files\MSextract\MSbuild.exe
        "C:\Program Files\MSextract\MSbuild.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3496
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TcjPCP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3BDB.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3896
        • C:\Program Files\MSextract\MSbuild.exe
          "{path}"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:400
      • 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:3304

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\Microsoft\CLR_v4.0_32\UsageLogs\HWID Changer.exe.log

    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    7c9c547e86ae7530ed0f31c79034a5ec

    SHA1

    b747f29c3c230799c9192c659316647c29da7b31

    SHA256

    082f3b890e37b09ca5fd68c43547a517e01c029d95ce241ea96aba7d4e3a5b93

    SHA512

    f768690d821c1ac9740c5aebe38e02d794166a3a14364fb59a029ab64d62ac10a4f30cbf21d86c82ac275333b116c1a118df019ce8adc4673fa4548cab20b7f7

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ixhrwsvk.hl0.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp3BDB.tmp

    Filesize

    1KB

    MD5

    72aa9bb65b485be62a918bf7cb13a3fc

    SHA1

    a2646799c6cc6a02c1b74656228bd5aaa33ae493

    SHA256

    51e61e17d5d22b3e936ca25c64f1d2dbcf88c4e24814f31b5019767d346fad3d

    SHA512

    2c2d70126958d56790dcc00b518c69a48535554c051c3c5a4979364d7423e97c74ed322dd25a54d52de847a14114985e84c707e4faa36539ff8b88f69c0732b2

  • 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/400-162-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1044-132-0x0000000005BC0000-0x0000000005F14000-memory.dmp

    Filesize

    3.3MB

  • memory/1044-154-0x0000000007730000-0x0000000007741000-memory.dmp

    Filesize

    68KB

  • memory/1044-144-0x000000006F970000-0x000000006F9BC000-memory.dmp

    Filesize

    304KB

  • memory/1044-143-0x0000000006390000-0x00000000063DC000-memory.dmp

    Filesize

    304KB

  • memory/1044-155-0x0000000007770000-0x0000000007784000-memory.dmp

    Filesize

    80KB

  • memory/1096-8-0x0000000000980000-0x0000000000994000-memory.dmp

    Filesize

    80KB

  • memory/1096-96-0x0000000006520000-0x0000000006596000-memory.dmp

    Filesize

    472KB

  • memory/1096-98-0x0000000006500000-0x000000000651E000-memory.dmp

    Filesize

    120KB

  • memory/1096-12-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/1096-114-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/1096-11-0x00000000068C0000-0x000000000693E000-memory.dmp

    Filesize

    504KB

  • memory/1096-10-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/1096-9-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/1544-121-0x0000000000780000-0x0000000000792000-memory.dmp

    Filesize

    72KB

  • memory/3304-58-0x00000000008E0000-0x00000000009C4000-memory.dmp

    Filesize

    912KB

  • memory/3496-55-0x0000000000910000-0x00000000009EC000-memory.dmp

    Filesize

    880KB

  • memory/3496-158-0x0000000006510000-0x0000000006540000-memory.dmp

    Filesize

    192KB

  • memory/3496-95-0x0000000005580000-0x0000000005594000-memory.dmp

    Filesize

    80KB

  • memory/3496-157-0x00000000080F0000-0x0000000008174000-memory.dmp

    Filesize

    528KB

  • memory/4120-3-0x0000000005B20000-0x00000000060C4000-memory.dmp

    Filesize

    5.6MB

  • memory/4120-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

    Filesize

    4KB

  • memory/4120-4-0x0000000005610000-0x00000000056A2000-memory.dmp

    Filesize

    584KB

  • memory/4120-2-0x00000000054A0000-0x000000000553C000-memory.dmp

    Filesize

    624KB

  • memory/4120-6-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/4120-5-0x0000000005590000-0x000000000559A000-memory.dmp

    Filesize

    40KB

  • memory/4120-1-0x0000000000AB0000-0x0000000000AF2000-memory.dmp

    Filesize

    264KB

  • memory/4120-29-0x0000000074A70000-0x0000000075220000-memory.dmp

    Filesize

    7.7MB

  • memory/4120-7-0x00000000057B0000-0x0000000005806000-memory.dmp

    Filesize

    344KB

  • memory/4476-70-0x00000000060A0000-0x00000000060BE000-memory.dmp

    Filesize

    120KB

  • memory/4476-71-0x0000000006C60000-0x0000000006D03000-memory.dmp

    Filesize

    652KB

  • memory/4476-13-0x0000000002160000-0x0000000002196000-memory.dmp

    Filesize

    216KB

  • memory/4476-97-0x0000000006E00000-0x0000000006E0A000-memory.dmp

    Filesize

    40KB

  • memory/4476-115-0x0000000007010000-0x00000000070A6000-memory.dmp

    Filesize

    600KB

  • memory/4476-116-0x0000000006F90000-0x0000000006FA1000-memory.dmp

    Filesize

    68KB

  • memory/4476-76-0x00000000073D0000-0x0000000007A4A000-memory.dmp

    Filesize

    6.5MB

  • memory/4476-122-0x0000000006FC0000-0x0000000006FCE000-memory.dmp

    Filesize

    56KB

  • memory/4476-125-0x0000000006FD0000-0x0000000006FE4000-memory.dmp

    Filesize

    80KB

  • memory/4476-127-0x00000000070D0000-0x00000000070EA000-memory.dmp

    Filesize

    104KB

  • memory/4476-128-0x00000000070B0000-0x00000000070B8000-memory.dmp

    Filesize

    32KB

  • memory/4476-77-0x0000000006D90000-0x0000000006DAA000-memory.dmp

    Filesize

    104KB

  • memory/4476-59-0x0000000006030000-0x0000000006062000-memory.dmp

    Filesize

    200KB

  • memory/4476-60-0x000000006F8D0000-0x000000006F91C000-memory.dmp

    Filesize

    304KB

  • memory/4476-35-0x0000000005AB0000-0x0000000005AFC000-memory.dmp

    Filesize

    304KB

  • memory/4476-34-0x0000000005A70000-0x0000000005A8E000-memory.dmp

    Filesize

    120KB

  • memory/4476-27-0x0000000005480000-0x00000000057D4000-memory.dmp

    Filesize

    3.3MB

  • memory/4476-16-0x0000000004C40000-0x0000000004CA6000-memory.dmp

    Filesize

    408KB

  • memory/4476-17-0x0000000005410000-0x0000000005476000-memory.dmp

    Filesize

    408KB

  • memory/4476-15-0x0000000004BA0000-0x0000000004BC2000-memory.dmp

    Filesize

    136KB

  • memory/4476-14-0x0000000004D30000-0x0000000005358000-memory.dmp

    Filesize

    6.2MB

  • memory/4732-113-0x0000000000AD0000-0x0000000000AE2000-memory.dmp

    Filesize

    72KB