njrat | 4b250eaeb02a8fda12b09a2a049499e29f641daa3afb539cd1a70d7a7be48060

Analysis

max time kernel
150s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
25/10/2026, 19:51

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General

Target
OctopusEAX.exe
Size 1.6MB
Sample261025-ykz6fsbs8m
SHA256 4b250eaeb02a8fda12b09a2a049499e29f641daa3afb539cd1a70d7a7be48060
MD5 90a717cbf57a5cfff6d9cbf8f6d540be
SHA1 acafeb8fa42d4f55fcb91d939fff8454cb10442c
SHA512 0db0ebb9e70e38cb8ec3d0a7dfe26db7744e22c66d8683d8ae26f526400be7f83dec33197829a439d1e1f79630e1ff1788a9610b5565b8c6a5fa36004fab8974
SSDEEP 49152:JIotI4Bv0+OK2WZ0Yz0RDfNI7+uE2eq2JCc:JIeBvRt2WCYzgVIc2eq2A
TLSH
T1F47512CB4CC16736CEC283BD2A60BD174644A533C847B33BF8DC6935790A867ACDA5A5
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

victim defense_evasion discovery njrat xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

UA3iz-40659.portmap.host:40659

Mutex

3AaMuAknRaqQqcnG

Attributes

install_file
USB.exe

aes.plain

Extracted

Family

njrat

Version

<- NjRAT 0.7d Horror Edition ->

Botnet

Victim

UA3iz-40659.portmap.host:6060

Mutex

a6c56cd45e0a660f227421eb0aa9ddea

Attributes

reg_key
a6c56cd45e0a660f227421eb0aa9ddea
splitter
Y262SUCZ4UJJ

Extracted

Family

xworm

UA3iz-40659.portmap.host:40659

Mutex

oYTz114rvOoAgzi5

Attributes

install_file
USB.exe

aes.plain

Signatures

Family: Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Family: njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001b848-6.dat	family_xworm
behavioral1/memory/4328-17-0x00000000008B0000-0x00000000008BE000-memory.dmp	family_xworm
behavioral1/files/0x000d00000001c5bd-27.dat	family_xworm
behavioral1/memory/4288-35-0x00000000009E0000-0x00000000009EE000-memory.dmp	family_xworm

Executes dropped EXE 4 IoCs

pid	Process
4328	XClient.exe
4936	Payload.exe
4288	WizClient.exe
2844	OctopusEAX.exe

Enumerates video capture drivers 2 TTPs 2 IoCs

Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.

discovery defense_evasion

Peripheral Device Discovery

T1120

Video Capture

T1125

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\msvideo9	WizClient.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\msvideo9	XClient.exe

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

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	WizClient.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	WizClient.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	Payload.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	Payload.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	XClient.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	XClient.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	Payload.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2844	OctopusEAX.exe
2844	OctopusEAX.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: 33	5272	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	5272	AUDIODG.EXE
Token: SeDebugPrivilege	4288	WizClient.exe
Token: SeDebugPrivilege	4328	XClient.exe
Token: SeDebugPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe
Token: 33	4936	Payload.exe
Token: SeIncBasePriorityPrivilege	4936	Payload.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 4328	4632	OctopusEAX.exe	89
PID 4632 wrote to memory of 4936	4632	OctopusEAX.exe	90
PID 4632 wrote to memory of 4288	4632	OctopusEAX.exe	91
PID 4632 wrote to memory of 2844	4632	OctopusEAX.exe	92
PID 2844 wrote to memory of 5612	2844	OctopusEAX.exe	93
PID 2844 wrote to memory of 108	2844	OctopusEAX.exe	96

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\OctopusEAX.exe
"C:\Users\Admin\AppData\Local\Temp\OctopusEAX.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Users\Admin\AppData\Roaming\XClient.exe
  "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Executes dropped EXE
  - Enumerates video capture drivers
  - Reads the TCP/IP host and domain name from the registry
  - Suspicious use of AdjustPrivilegeToken
  PID:4328
- C:\Users\Admin\AppData\Roaming\Payload.exe
  "C:\Users\Admin\AppData\Roaming\Payload.exe"
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4936
- C:\Users\Admin\AppData\Roaming\WizClient.exe
  "C:\Users\Admin\AppData\Roaming\WizClient.exe"
  2⤵
  - Executes dropped EXE
  - Enumerates video capture drivers
  - Reads the TCP/IP host and domain name from the registry
  - Suspicious use of AdjustPrivilegeToken
  PID:4288
- C:\Users\Admin\AppData\Roaming\OctopusEAX.exe
  "C:\Users\Admin\AppData\Roaming\OctopusEAX.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\system32\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query /TN "OctopusEAX"
    3⤵
    PID:5612
- - C:\Windows\system32\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query /TN "MasonEAX"
    3⤵
    PID:108

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004EC 0x00000000000004E8
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5272

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Video Capture

T1125

Command and Control

Exfiltration

Impact

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Downloads

OctopusEAX.exe

Path C:\Users\Admin\AppData\Roaming\OctopusEAX.exe
Size 1.4MB
SHA256 6c1758ea8aff65a6f69bfab05752a343077bdffae6873ac1d83dbaa00dc1fc19
MD5 97d1dacc80e013b370e0338c3ecc8782
SHA1 8a5883f4cae22ba72496e6c7086a242c0792e605
SHA512 70c89febda1d2a03f07774b9fb5c98a896e814210d1f3ab35c43de2cf82d87865ddcd014daff294473a6bf7a9dc6b091bfb3fbae92fcb2549267aef18ae927c4
SSDEEP 24576:mWAZU7t1rtbc/7Ydld1asivY1EyVJIRTxNuEagobz32ORV:mT6ptMs1511+5aRz32O
TLSH
T116659E11A1E441EDD1BBE2B4CA762D07E772784103349AEB03D0996A1F277D54EBFB22
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Payload.exe

Path C:\Users\Admin\AppData\Roaming\Payload.exe
Size 55KB
SHA256 754705c26df8b527d7a3be2cfcae15e2982137cb03bd1ab1d373321a581729ca
MD5 0672ddc8162261476a5de43b781248a0
SHA1 0bfe10d15b813a39b3337df44d0c89e9d195a2c8
SHA512 5f2a6af856ee246a582526ff9b502b585c4803243c6e03d5a937ec32e2c4de261a83f07ed5cd0f69e951152067123622296e0c6605cfce654ff73775399adb6c
SSDEEP 768:jROsVSt1ManUk2N/PSJ2hrcr3UwhkSN3mwFvfu0YMDHPsML7XJSxI3pmhm:jR/gDnqN/PSAqzDWwsNMDDXExI3pmhm
TLSH
T197432844BFEA4A01E2BD8F3468F655150634AA63E532EB1F4CD668DB17327C58C40FE6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

WizClient.exe

Path C:\Users\Admin\AppData\Roaming\WizClient.exe
Size 30KB
SHA256 a8c374709709be9c6c35f6394d1c261d6c9c02b360c4a123b285b1b42d3b1d8e
MD5 ef25d21bf010a7171c588087aeb512b3
SHA1 2a7d2e6365e95d168e9840144abf83e2c475e035
SHA512 3331d26bdb646a7d2fff21346b2ef35a0787add31c2501aa4d61b3183244e3c165b1b2d572b82e58f6b6493f2ce5ecb3ef2aa2017bedd775614bc6f31b6d8aef
SSDEEP 384:IfoCEwCPmtt37GRuSFWLLZk5ImYTEjPgmRuptFlBLTIOZw/W2Zvn9Ikn1uumxOqF:7mtt3onGHm4som0FG9L5MOqhHbX
TLSH
T123E23A487BE88326DAFE1FF219B2910112749513DD13EF9E0CD595EB6B6BAC046013EA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

XClient.exe

Path C:\Users\Admin\AppData\Roaming\XClient.exe
Size 32KB
SHA256 3fb939c27ac3fdf9c9e2dd478c28cd68b537ea67a8b1366ae774737a104c5125
MD5 36ca637d6e7646a09271f7ddabd1b4de
SHA1 e4d31356b9e4207527c8480345db30299314a1c1
SHA512 6d041800ab16f60a68e8712211d32c97d391ce7bfab4df86ef3fd99ae6f0921fef86b26f60a088ef8aa86ade0e62602c1608d3fa85a7320967f85845f4c405dc
SSDEEP 768:dRPD9OQhx/BV3Tw4ppzVFE9j/1HOjhzb1:dd9OW/V3U4pjFE9jNHOjlJ
TLSH
T1C6E22B4877E44712DAEEAFF12DF261061270D51BD913EFAE0CE485EA2B67AC047407E6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4288-65-0x000000001C4E0000-0x000000001C5D0000-memory.dmp

Download

memory/4288-53-0x000000001C4E0000-0x000000001C5D0000-memory.dmp

Download

memory/4288-46-0x000000001C4E0000-0x000000001C5D0000-memory.dmp

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memory/4288-35-0x00000000009E0000-0x00000000009EE000-memory.dmp

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memory/4328-42-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

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memory/4328-45-0x0000000001100000-0x0000000001110000-memory.dmp

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memory/4328-64-0x000000001BBD0000-0x000000001BCC0000-memory.dmp

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memory/4328-58-0x000000001BBD0000-0x000000001BCC0000-memory.dmp

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memory/4328-52-0x000000001BBD0000-0x000000001BCC0000-memory.dmp

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memory/4328-41-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

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memory/4328-50-0x000000001BBD0000-0x000000001BCC0000-memory.dmp

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memory/4328-49-0x0000000001100000-0x0000000001110000-memory.dmp

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memory/4328-47-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

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memory/4328-17-0x00000000008B0000-0x00000000008BE000-memory.dmp

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memory/4632-8-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

Download

memory/4632-0-0x00007FFF687BF000-0x00007FFF687C0000-memory.dmp

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memory/4632-39-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

Download

memory/4632-3-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

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memory/4632-40-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

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memory/4632-34-0x00007FFF68630000-0x00007FFF68FD4000-memory.dmp

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memory/4632-1-0x0000000000C10000-0x0000000000DA6000-memory.dmp

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memory/4936-43-0x0000000074CA2000-0x0000000074CA4000-memory.dmp

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memory/4936-48-0x0000000001540000-0x0000000001550000-memory.dmp

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memory/4936-44-0x0000000001540000-0x0000000001550000-memory.dmp

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