Analysis
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max time kernel
233s -
max time network
244s -
platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20250207-en -
resource tags
arch:x64arch:x86image:win10ltsc2021-20250207-enlocale:en-usos:windows10-ltsc 2021-x64system -
submitted
10-02-2025 13:37
Behavioral task
behavioral1
Sample
lmlmdos.exe
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral2
Sample
lmlmdos.exe
Resource
win7-20240903-en
Behavioral task
behavioral3
Sample
lmlmdos.exe
Resource
win10v2004-20250207-en
Behavioral task
behavioral4
Sample
lmlmdos.exe
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral5
Sample
lmlmdos.exe
Resource
win11-20250210-en
Errors
General
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Target
lmlmdos.exe
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Size
23KB
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MD5
5eb67cac2f9ef8a548ba327896909cda
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SHA1
b8f3612f2d00c581387b02a615ad178874b51329
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SHA256
f5c542679e18756fcaaf434a1df9ecee261c8fa6788b75dc64c458e4eef15f2d
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SHA512
40665518a5451f7bd86ca1e3ad58cec178566c0f45fde647e76c2bb8d81611ca61fe1974cb97988065239005ca63fc9de0c449d45357ee90a8a99ccd30a5415f
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SSDEEP
384:XweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZQy:oLq411eRpcnuI
Malware Config
Signatures
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Njrat family
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Disables Task Manager via registry modification
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Downloads MZ/PE file 2 IoCs
flow pid Process 29 1516 Process not Found 42 4496 Process not Found -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1376 netsh.exe -
Checks computer location settings 2 TTPs 5 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-28130017-4025710482-1759186147-1000\Control Panel\International\Geo\Nation MBR2.exe Key value queried \REGISTRY\USER\S-1-5-21-28130017-4025710482-1759186147-1000\Control Panel\International\Geo\Nation MatrixMBR.exe Key value queried \REGISTRY\USER\S-1-5-21-28130017-4025710482-1759186147-1000\Control Panel\International\Geo\Nation lmlmdos.exe Key value queried \REGISTRY\USER\S-1-5-21-28130017-4025710482-1759186147-1000\Control Panel\International\Geo\Nation server.exe Key value queried \REGISTRY\USER\S-1-5-21-28130017-4025710482-1759186147-1000\Control Panel\International\Geo\Nation tmpC41.tmp.COM -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\052a8691abcf06ff30b5f4c68922a91f.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\052a8691abcf06ff30b5f4c68922a91f.exe server.exe -
Executes dropped EXE 8 IoCs
pid Process 3976 server.exe 1588 tmpC41.tmp.COM 3208 MBR2.exe 4852 TROLL5.exe 2128 TROLL2.exe 4716 MatrixMBR.exe 2676 GDI.exe 1528 MBR.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-28130017-4025710482-1759186147-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\052a8691abcf06ff30b5f4c68922a91f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\052a8691abcf06ff30b5f4c68922a91f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 MBR.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\System32\MatrixMBR.exe MBR2.exe File opened for modification C:\Windows\System32\MatrixMBR.exe MBR2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MicrosoftEdgeUpdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TROLL5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TROLL2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language GDI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MBR.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lmlmdos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3416 MicrosoftEdgeUpdate.exe -
Suspicious use of AdjustPrivilegeToken 58 IoCs
description pid Process Token: SeDebugPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3276 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 3276 AUDIODG.EXE Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: 33 3976 server.exe Token: SeIncBasePriorityPrivilege 3976 server.exe Token: SeShutdownPrivilege 1528 MBR.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1288 wrote to memory of 3976 1288 lmlmdos.exe 85 PID 1288 wrote to memory of 3976 1288 lmlmdos.exe 85 PID 1288 wrote to memory of 3976 1288 lmlmdos.exe 85 PID 3976 wrote to memory of 1376 3976 server.exe 86 PID 3976 wrote to memory of 1376 3976 server.exe 86 PID 3976 wrote to memory of 1376 3976 server.exe 86 PID 3976 wrote to memory of 1588 3976 server.exe 93 PID 3976 wrote to memory of 1588 3976 server.exe 93 PID 1588 wrote to memory of 3208 1588 tmpC41.tmp.COM 94 PID 1588 wrote to memory of 3208 1588 tmpC41.tmp.COM 94 PID 1588 wrote to memory of 4852 1588 tmpC41.tmp.COM 95 PID 1588 wrote to memory of 4852 1588 tmpC41.tmp.COM 95 PID 1588 wrote to memory of 4852 1588 tmpC41.tmp.COM 95 PID 1588 wrote to memory of 2128 1588 tmpC41.tmp.COM 96 PID 1588 wrote to memory of 2128 1588 tmpC41.tmp.COM 96 PID 1588 wrote to memory of 2128 1588 tmpC41.tmp.COM 96 PID 3208 wrote to memory of 4716 3208 MBR2.exe 98 PID 3208 wrote to memory of 4716 3208 MBR2.exe 98 PID 4716 wrote to memory of 2676 4716 MatrixMBR.exe 99 PID 4716 wrote to memory of 2676 4716 MatrixMBR.exe 99 PID 4716 wrote to memory of 2676 4716 MatrixMBR.exe 99 PID 4716 wrote to memory of 1528 4716 MatrixMBR.exe 100 PID 4716 wrote to memory of 1528 4716 MatrixMBR.exe 100 PID 4716 wrote to memory of 1528 4716 MatrixMBR.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\lmlmdos.exe"C:\Users\Admin\AppData\Local\Temp\lmlmdos.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3976 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1376
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C:\Users\Admin\AppData\Local\Temp\tmpC41.tmp.COM"C:\Users\Admin\AppData\Local\Temp\tmpC41.tmp.COM"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1588 -
C:\Users\Admin\AppData\Local\Temp\MBR2.exe"C:\Users\Admin\AppData\Local\Temp\MBR2.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3208 -
C:\Windows\System32\MatrixMBR.exe"C:\Windows\System32\MatrixMBR.exe"5⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4716 -
C:\Users\Admin\AppData\Local\Temp\GDI.exe"C:\Users\Admin\AppData\Local\Temp\GDI.exe"6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2676
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C:\Users\Admin\AppData\Local\Temp\MBR.exe"C:\Users\Admin\AppData\Local\Temp\MBR.exe"6⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1528
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C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4852
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C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2128
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C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-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⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3416
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x170 0x2ec1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3276
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Pre-OS Boot
1Bootkit
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
11KB
MD5c08ae6d9c6ecd7e13f827bf68767785f
SHA1e71c2ec8d00c1e82b8b07baee0688b0a28604454
SHA256e153def894c867923dd56a7025b7b0b7bd3ee37c801a5957201d39f999bb28bf
SHA512c28bbe8abc66ad2433e5a3b93a4601b28225e86cb4bff077fd3224adfa63164bebfa3002a42b1cb4cb3c7ccad0208f8b143b8a17099bea04fcb964e667c7a1c0
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Filesize
93KB
MD5d2fc66cf781a2497fceb4041a93cc676
SHA1480b1aa31b0b31fc0e0833afbba06533ab9a90ee
SHA256acddde9514e3b9d5c40b3d1750af5f4187c99f8987b027d6da44fb6bcf79b3ca
SHA5126c4cb42f786301be7614d4cb0b32601fea151351b0877e2371632435eb2c54bd4cd04d6b23bf4f49017ccaf679331162aac7329a1ed2409e3c2e02d0326e3487
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Filesize
205KB
MD53dc0e225f886bae3b655cd9d738ed32f
SHA1abda127fd477bd9d051cd57b16ac13f44030a9ae
SHA256c22e2419f04fe03a92255a139ca8814697962e86d191a1d4171788fd0c903f68
SHA512c8a6c0bfa96defde6f83d847583ff2ec065a43f80f9886259a2d1fe7df306ef6ed7aeed61b7dcf0bdc111fc67419eb66cf1ca44e831711dd4ea7d25ed9aed09b
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Filesize
105KB
MD552a2a5517deb1a06896891a35299ce20
SHA1badcbdfef312bd71de997a7416ee20cee5d66af6
SHA256dcdf5140bc51db27f3aec80ae9a66a57aad446a2522904d288770e8d8cde8cee
SHA5127cb0de412c0508f5af522aeaf3731dda418f72f7cae8dd3f21b34d5cdbc08f9dea8699d59878610496c68d687227a0269739221490d70d03b8e4b84dfd29d5f1
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Filesize
712KB
MD5542a4e400ff233b21a1a3c27751ac783
SHA1000a67f00b0003531d65a6ed6f16488ae5dcd0fe
SHA25679f00c7dab0891824136539fabd542c74e26cbed94b9add3f1aa7f793d653de6
SHA5128335118ca0c268635d9495b331fb65800a32a0631f132cd34ce84ca3b523d0a9e23eee6d76539d0c81d86fda534da56c936914012d8bad35040b15cc8caaf645
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Filesize
23KB
MD55eb67cac2f9ef8a548ba327896909cda
SHA1b8f3612f2d00c581387b02a615ad178874b51329
SHA256f5c542679e18756fcaaf434a1df9ecee261c8fa6788b75dc64c458e4eef15f2d
SHA51240665518a5451f7bd86ca1e3ad58cec178566c0f45fde647e76c2bb8d81611ca61fe1974cb97988065239005ca63fc9de0c449d45357ee90a8a99ccd30a5415f
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Filesize
921KB
MD5d0ae6aea701de9f127f91e7efdb50252
SHA1cb9ef64cbcb999372fb4046e99fe89a03df9bc81
SHA256c1aeab35f61f12db28274d82713bff400b808625854a18e49504022f92805e31
SHA512505d11808e9923ff0ec1a51acd51509711f8c5c42da81b47a97249954b06f6f45ddda4655446daeb7f231785cd484ebc6e9ada92b857ad3a8d7ce04276536f13
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Filesize
250KB
MD524c441662c09b94e14a4096a8e59c316
SHA111576cad137bd8ed76efecd711c0390fe5c85292
SHA256339fe94164952a8454e6ec5fc75e2c38baade2c14b231e47bf41989ffbb55ee4
SHA5127f6ca1366733c5fb4925001c0846510732031a9e5f1b16291ff596187c20a88f41193389cedcb73e3928c318fc972be4f03e3cb71f1487c34642897ff9a2b590