limerat | 078f237e95224e906f03b4920f9b42e82ce461f7ea86505eaa45f4de26aa4f65

Analysis

max time kernel
116s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 17:45

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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

Score

10^/10

limerat discovery execution persistence rat

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.
rat limerat
Limerat family
limerat

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.

execution

PowerShell

T1059.001

pid	Process
1424	powershell.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Startup.lnk	Launcher.exe

Executes dropped EXE 6 IoCs

pid	Process
2564	MSbuild.exe
2588	HWID Changer.exe
2272	Windows Services.exe
640	Secure System Shell.exe
2528	Runtime Explorer.exe
3064	MSbuild.exe

Loads dropped DLL 5 IoCs

pid	Process
2624	Launcher.exe
2624	Launcher.exe
2272	Windows Services.exe
2272	Windows Services.exe
2272	Windows Services.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Runtime Explorer = "C:\\Windows\\IMF\\\\Windows Services.exe"	Launcher.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2564 set thread context of 3064	2564	MSbuild.exe	42

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\MSextract\MSbuild.exe	config.exe
File opened for modification	C:\Program Files\MSextract	config.exe
File created	C:\Program Files\MSextract\__tmp_rar_sfx_access_check_259451658	config.exe
File created	C:\Program Files\MSextract\HWID Changer.exe	config.exe
File opened for modification	C:\Program Files\MSextract\HWID Changer.exe	config.exe
File created	C:\Program Files\MSextract\MSbuild.exe	config.exe

Drops file in Windows directory 9 IoCs

description	ioc	Process
File created	C:\Windows\IMF\Secure System Shell.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Secure System Shell.exe	Launcher.exe
File created	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File opened for modification	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File created	C:\Windows\IMF\LICENCE.dat	Launcher.exe
File created	C:\Windows\IMF\Windows Services.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Windows Services.exe	Launcher.exe
File created	C:\Windows\IMF\Runtime Explorer.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Runtime Explorer.exe	Launcher.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Launcher.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HWID Changer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Secure System Shell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Runtime Explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HWID Changer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSbuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows Services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSbuild.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2624	Launcher.exe
1424	powershell.exe
2272	Windows Services.exe
2272	Windows Services.exe
2272	Windows Services.exe
2272	Windows Services.exe
640	Secure System Shell.exe
2564	MSbuild.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	Launcher.exe
Token: SeDebugPrivilege	1424	powershell.exe
Token: SeDebugPrivilege	2272	Windows Services.exe
Token: SeDebugPrivilege	640	Secure System Shell.exe
Token: SeDebugPrivilege	2564	MSbuild.exe
Token: SeDebugPrivilege	3064	MSbuild.exe
Token: SeDebugPrivilege	3064	MSbuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2528	Runtime Explorer.exe

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2624	1916	HWID Changer.exe	31
PID 1916 wrote to memory of 2624	1916	HWID Changer.exe	31
PID 1916 wrote to memory of 2624	1916	HWID Changer.exe	31
PID 1916 wrote to memory of 2624	1916	HWID Changer.exe	31
PID 1916 wrote to memory of 2624	1916	HWID Changer.exe	31
PID 1916 wrote to memory of 2624	1916	HWID Changer.exe	31
PID 1916 wrote to memory of 2624	1916	HWID Changer.exe	31
PID 2624 wrote to memory of 1424	2624	Launcher.exe	32
PID 2624 wrote to memory of 1424	2624	Launcher.exe	32
PID 2624 wrote to memory of 1424	2624	Launcher.exe	32
PID 2624 wrote to memory of 1424	2624	Launcher.exe	32
PID 2624 wrote to memory of 1424	2624	Launcher.exe	32
PID 2624 wrote to memory of 1424	2624	Launcher.exe	32
PID 2624 wrote to memory of 1424	2624	Launcher.exe	32
PID 1916 wrote to memory of 2548	1916	HWID Changer.exe	34
PID 1916 wrote to memory of 2548	1916	HWID Changer.exe	34
PID 1916 wrote to memory of 2548	1916	HWID Changer.exe	34
PID 1916 wrote to memory of 2548	1916	HWID Changer.exe	34
PID 2548 wrote to memory of 2564	2548	config.exe	35
PID 2548 wrote to memory of 2564	2548	config.exe	35
PID 2548 wrote to memory of 2564	2548	config.exe	35
PID 2548 wrote to memory of 2564	2548	config.exe	35
PID 2548 wrote to memory of 2588	2548	config.exe	36
PID 2548 wrote to memory of 2588	2548	config.exe	36
PID 2548 wrote to memory of 2588	2548	config.exe	36
PID 2548 wrote to memory of 2588	2548	config.exe	36
PID 2624 wrote to memory of 2272	2624	Launcher.exe	37
PID 2624 wrote to memory of 2272	2624	Launcher.exe	37
PID 2624 wrote to memory of 2272	2624	Launcher.exe	37
PID 2624 wrote to memory of 2272	2624	Launcher.exe	37
PID 2624 wrote to memory of 2272	2624	Launcher.exe	37
PID 2624 wrote to memory of 2272	2624	Launcher.exe	37
PID 2624 wrote to memory of 2272	2624	Launcher.exe	37
PID 2272 wrote to memory of 640	2272	Windows Services.exe	38
PID 2272 wrote to memory of 640	2272	Windows Services.exe	38
PID 2272 wrote to memory of 640	2272	Windows Services.exe	38
PID 2272 wrote to memory of 640	2272	Windows Services.exe	38
PID 2272 wrote to memory of 640	2272	Windows Services.exe	38
PID 2272 wrote to memory of 640	2272	Windows Services.exe	38
PID 2272 wrote to memory of 640	2272	Windows Services.exe	38
PID 2272 wrote to memory of 2528	2272	Windows Services.exe	39
PID 2272 wrote to memory of 2528	2272	Windows Services.exe	39
PID 2272 wrote to memory of 2528	2272	Windows Services.exe	39
PID 2272 wrote to memory of 2528	2272	Windows Services.exe	39
PID 2272 wrote to memory of 2528	2272	Windows Services.exe	39
PID 2272 wrote to memory of 2528	2272	Windows Services.exe	39
PID 2272 wrote to memory of 2528	2272	Windows Services.exe	39
PID 2564 wrote to memory of 1768	2564	MSbuild.exe	40
PID 2564 wrote to memory of 1768	2564	MSbuild.exe	40
PID 2564 wrote to memory of 1768	2564	MSbuild.exe	40
PID 2564 wrote to memory of 1768	2564	MSbuild.exe	40
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42
PID 2564 wrote to memory of 3064	2564	MSbuild.exe	42

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:1916
- 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:2624
- - 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:1424
- - 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:2272
  - - 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:640
  - - 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:2528
- 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:2548
- - 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
    - Suspicious use of WriteProcessMemory
    PID:2564
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TcjPCP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp692F.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1768
  - - C:\Program Files\MSextract\MSbuild.exe
      "{path}"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:3064
- - 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:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
885KB

MD5
43c147d6afafbf546ac6fdfe4ae049c9

SHA1
faf2ced44d5794372c0c42b32d47f68580e18dbf

SHA256
9ecccf1c26e43ca90cf997dc0ecd3e1ef6f3405a8bc46583725bc7e1d27fd235

SHA512
249b1c7130c3dd9c315c2eeafdb2748d0c97b9cd710056b36d983785e01185e308ef2a1c80d0c1d7adce05557b6b70ac7dcf581be7975836651ef98673fa7bb8

Download Submit
C:\Program Files\MSextract\MSbuild.exe

Filesize
858KB

MD5
a71cd5886cca33a25f832a1ed37bc4af

SHA1
7bacf2f5f80c03a298528106a34db71951a1e94e

SHA256
8c5b2aa9fc23e7e50d09bb41c9729efd821e6094a0477a65054ff20938723d88

SHA512
eb672552875d873dd2e5518ac022e99e0a8531a52f9d67f2dbaf09b66809483a7881fbf46472ed9f38df9bb46bd89016a53220fbf38149a2c507efda0a66be03

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp692F.tmp

Filesize
1KB

MD5
1916cc23ad20ce6be7002662c6b9a946

SHA1
6424a2292afe2ad605bc99b027355fb63eb6e86c

SHA256
f680019f5d8c8fec036f7f4bb852b76aee13c8107bf3bff623cdb43e3f9ad1e2

SHA512
c47a6d3280613b16a34a226285f2a9b6fb393a5a8e7fee1c841d70808826d7b5e008ece4ed7db43a38dd7e2d5ef051234b3a36760f5c56b199b0cc2d1dd093ac

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
152KB

MD5
03f5e0141f4519f0c5ac26ce0b036a0f

SHA1
4f7a2a230e7a194a898cc9f2d563ac8777fe99c0

SHA256
78a408c628e33e3332645f480ee7ce01b5dc24fc96cf16ffa0868d43f3d421ef

SHA512
86a68f040654006e06b51c5714e0d7168d0d1bef7f3c39843632068104f773f771d21be4bc251d712f3e915cd1058f89ad31d9e3f3d9e7cf6da6785cbf22d8d7

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
memory/640-78-0x0000000001210000-0x0000000001222000-memory.dmp

Filesize
72KB

Download
memory/1916-1-0x0000000000230000-0x0000000000272000-memory.dmp

Filesize
264KB

Download
memory/1916-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/1916-10-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2272-70-0x0000000000EA0000-0x0000000000EB2000-memory.dmp

Filesize
72KB

Download
memory/2564-82-0x0000000001FD0000-0x0000000002000000-memory.dmp

Filesize
192KB

Download
memory/2564-81-0x0000000005250000-0x00000000052D4000-memory.dmp

Filesize
528KB

Download
memory/2564-36-0x00000000009D0000-0x0000000000AAC000-memory.dmp

Filesize
880KB

Download
memory/2564-37-0x0000000001EB0000-0x0000000001EC4000-memory.dmp

Filesize
80KB

Download
memory/2588-35-0x0000000000AF0000-0x0000000000BD4000-memory.dmp

Filesize
912KB

Download
memory/2624-4-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2624-5-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2624-6-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2624-69-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2624-7-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2624-3-0x0000000000B30000-0x0000000000B44000-memory.dmp

Filesize
80KB

Download
memory/3064-97-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3064-95-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3064-93-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3064-92-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3064-90-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3064-88-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3064-86-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download