njrat | 889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29

General

Target

889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29.exe
Size

23KB
MD5

2dca2c8fb8d62970d06d7c9f53c758e6
SHA1

30a99b983bba0e0a526fe559079ecbb5e24d1bd1
SHA256

889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29
SHA512

9e80731749c84c4e734292db48b1e434aae39e2f1fbce2aa9ff476894e7d72376243f64604b3312f16bcbb8e4c252e04620fffe661eec678ad3cd0970d193495
SSDEEP

384:psqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZguBf:if65K2Yf1jKRpcnu3G

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

a777a.no-ip.biz:5556

Mutex

e369b878de190378171035199570841d

Attributes

reg_key
e369b878de190378171035199570841d
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
3476	system.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
5020	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e369b878de190378171035199570841d.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e369b878de190378171035199570841d.exe	system.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e369b878de190378171035199570841d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e369b878de190378171035199570841d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.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 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe
Token: 33	3476	system.exe
Token: SeIncBasePriorityPrivilege	3476	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3476	5004	889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29.exe	88
PID 5004 wrote to memory of 3476	5004	889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29.exe	88
PID 5004 wrote to memory of 3476	5004	889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29.exe	88
PID 3476 wrote to memory of 5020	3476	system.exe	90
PID 3476 wrote to memory of 5020	3476	system.exe	90
PID 3476 wrote to memory of 5020	3476	system.exe	90

C:\Users\Admin\AppData\Local\Temp\889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29.exe
"C:\Users\Admin\AppData\Local\Temp\889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\system.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3476
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:5020

Network

MITRE ATT&CK Enterprise 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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\system.exe

Filesize
23KB

MD5
2dca2c8fb8d62970d06d7c9f53c758e6

SHA1
30a99b983bba0e0a526fe559079ecbb5e24d1bd1

SHA256
889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29

SHA512
9e80731749c84c4e734292db48b1e434aae39e2f1fbce2aa9ff476894e7d72376243f64604b3312f16bcbb8e4c252e04620fffe661eec678ad3cd0970d193495

Download Submit
C:\Users\Admin\AppData\Local\Temp\system.exe

Filesize
23KB

MD5
2dca2c8fb8d62970d06d7c9f53c758e6

SHA1
30a99b983bba0e0a526fe559079ecbb5e24d1bd1

SHA256
889fae79a25bbb5e43f2276b571e50a54409eda6ad4a481dfeabd3a727a61a29

SHA512
9e80731749c84c4e734292db48b1e434aae39e2f1fbce2aa9ff476894e7d72376243f64604b3312f16bcbb8e4c252e04620fffe661eec678ad3cd0970d193495

Download Submit
memory/3476-134-0x0000000000000000-mapping.dmp

Download
memory/3476-138-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/3476-140-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/5004-132-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/5004-133-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/5004-137-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/5020-139-0x0000000000000000-mapping.dmp

Download

Analysis

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