njrat | 7d2384407431c2ba16975ccc548524ea2feb4fa216452bfda624513eab254734

General

Target

CE82A80553AA90FC39DC9938A1A38785.exe
Size

99KB
MD5

ce82a80553aa90fc39dc9938a1a38785
SHA1

0975e73735c72516cdffd11e55a6c44bd003fd97
SHA256

7d2384407431c2ba16975ccc548524ea2feb4fa216452bfda624513eab254734
SHA512

ba2f5b20e91df86f0e2d4b42b8da62080694c3f304b30e39b10043809d6942654ece90a8ce125b9f3a91a62de413b6a697d7883b40075ad0641628f4bb3b22c0

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

ecstatic-water-14400.pktriot.net:22568

Mutex

b41e5fad6d579c73dd0db63f0e3ad82b

Attributes

reg_key
b41e5fad6d579c73dd0db63f0e3ad82b
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

build.exeserver.exe

pid process

4624 build.exe
4700 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
4624	build.exe
4700	server.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b41e5fad6d579c73dd0db63f0e3ad82b.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b41e5fad6d579c73dd0db63f0e3ad82b.exe	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\b41e5fad6d579c73dd0db63f0e3ad82b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b41e5fad6d579c73dd0db63f0e3ad82b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe
Token: 33	4700	server.exe
Token: SeIncBasePriorityPrivilege	4700	server.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

CE82A80553AA90FC39DC9938A1A38785.exebuild.exeserver.exe

description	pid	process	target process
PID 4564 wrote to memory of 4624	4564	CE82A80553AA90FC39DC9938A1A38785.exe	build.exe
PID 4564 wrote to memory of 4624	4564	CE82A80553AA90FC39DC9938A1A38785.exe	build.exe
PID 4564 wrote to memory of 4624	4564	CE82A80553AA90FC39DC9938A1A38785.exe	build.exe
PID 4624 wrote to memory of 4700	4624	build.exe	server.exe
PID 4624 wrote to memory of 4700	4624	build.exe	server.exe
PID 4624 wrote to memory of 4700	4624	build.exe	server.exe
PID 4700 wrote to memory of 4744	4700	server.exe	netsh.exe
PID 4700 wrote to memory of 4744	4700	server.exe	netsh.exe
PID 4700 wrote to memory of 4744	4700	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\CE82A80553AA90FC39DC9938A1A38785.exe
"C:\Users\Admin\AppData\Local\Temp\CE82A80553AA90FC39DC9938A1A38785.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4564

C:\ProgramData\build.exe
"C:\ProgramData\build.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4624

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4700

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
4⤵
PID:4744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\build.exe
MD5
4c9d855213d729707cc9f75f13a3e1c5

SHA1
53d41cec3e3bebc16eb5056acf378e6003dcd36c

SHA256
9fb26b18ad7036bf29f1537d0153e0b2981efc0ed3dc7c92114bb8fdf27a296b

SHA512
8c3bd1df65fe5fd9127a8ccc298ca28d46de3625e378c536635ef9cb74a5012d5de6b2bf175a8a7624ad694326ba4b60a4e160e7bf4e3f792a3aa400fb7b0617

Download Submit
C:\ProgramData\build.exe
MD5
4c9d855213d729707cc9f75f13a3e1c5

SHA1
53d41cec3e3bebc16eb5056acf378e6003dcd36c

SHA256
9fb26b18ad7036bf29f1537d0153e0b2981efc0ed3dc7c92114bb8fdf27a296b

SHA512
8c3bd1df65fe5fd9127a8ccc298ca28d46de3625e378c536635ef9cb74a5012d5de6b2bf175a8a7624ad694326ba4b60a4e160e7bf4e3f792a3aa400fb7b0617

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
4c9d855213d729707cc9f75f13a3e1c5

SHA1
53d41cec3e3bebc16eb5056acf378e6003dcd36c

SHA256
9fb26b18ad7036bf29f1537d0153e0b2981efc0ed3dc7c92114bb8fdf27a296b

SHA512
8c3bd1df65fe5fd9127a8ccc298ca28d46de3625e378c536635ef9cb74a5012d5de6b2bf175a8a7624ad694326ba4b60a4e160e7bf4e3f792a3aa400fb7b0617

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
4c9d855213d729707cc9f75f13a3e1c5

SHA1
53d41cec3e3bebc16eb5056acf378e6003dcd36c

SHA256
9fb26b18ad7036bf29f1537d0153e0b2981efc0ed3dc7c92114bb8fdf27a296b

SHA512
8c3bd1df65fe5fd9127a8ccc298ca28d46de3625e378c536635ef9cb74a5012d5de6b2bf175a8a7624ad694326ba4b60a4e160e7bf4e3f792a3aa400fb7b0617

Download Submit
memory/4564-115-0x00000000009E0000-0x00000000009E1000-memory.dmp

Filesize
4KB

Download
memory/4624-117-0x0000000000000000-mapping.dmp

Download
memory/4624-120-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

Filesize
4KB

Download
memory/4700-121-0x0000000000000000-mapping.dmp

Download
memory/4700-124-0x0000000002D90000-0x0000000002D91000-memory.dmp

Filesize
4KB

Download
memory/4744-125-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads