njrat | 8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308

General

Target

8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exe
Size

23KB
MD5

6a49d3f2f3d0d192dede1fedcdb86870
SHA1

ded1f9fa0bcdd670e3277f51596d612672355e29
SHA256

8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308
SHA512

80e80e2da91f201df3f48ec656b5f332ce194749f57c20f5f79e5785dc4c1c76494290e9b2c119b79ca53031851d6e588476a1e5d1808f58f9b3835e14358ceb
SSDEEP

384:BQeCo2zmZbQHkJeCdUwBvQ61gjuQBnB9mRvR6JZlbw8hqIusZzZl/:W5yBVd7Rpcnui

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

kingshacking.zapto.org:81

Mutex

ddba3ff35ad40cfacb2b222b7c8bc6a1

Attributes

reg_key
ddba3ff35ad40cfacb2b222b7c8bc6a1
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

4836 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3812 netsh.exe

pid	process
4836	server.exe

pid	process
3812	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

Processes:

8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ddba3ff35ad40cfacb2b222b7c8bc6a1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ddba3ff35ad40cfacb2b222b7c8bc6a1 = "\"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 29 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe
Token: 33	4836	server.exe
Token: SeIncBasePriorityPrivilege	4836	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exeserver.exe

description	pid	process	target process
PID 3984 wrote to memory of 4836	3984	8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exe	server.exe
PID 3984 wrote to memory of 4836	3984	8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exe	server.exe
PID 3984 wrote to memory of 4836	3984	8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exe	server.exe
PID 4836 wrote to memory of 3812	4836	server.exe	netsh.exe
PID 4836 wrote to memory of 3812	4836	server.exe	netsh.exe
PID 4836 wrote to memory of 3812	4836	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exe
"C:\Users\Admin\AppData\Local\Temp\8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3984
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3812

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\server.exe

Filesize
23KB

MD5
6a49d3f2f3d0d192dede1fedcdb86870

SHA1
ded1f9fa0bcdd670e3277f51596d612672355e29

SHA256
8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308

SHA512
80e80e2da91f201df3f48ec656b5f332ce194749f57c20f5f79e5785dc4c1c76494290e9b2c119b79ca53031851d6e588476a1e5d1808f58f9b3835e14358ceb

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

Filesize
23KB

MD5
6a49d3f2f3d0d192dede1fedcdb86870

SHA1
ded1f9fa0bcdd670e3277f51596d612672355e29

SHA256
8e89bfc3381d4c122767c66799c5502e62b998cd229a4f03eccbc1d845960308

SHA512
80e80e2da91f201df3f48ec656b5f332ce194749f57c20f5f79e5785dc4c1c76494290e9b2c119b79ca53031851d6e588476a1e5d1808f58f9b3835e14358ceb

Download Submit
memory/3812-139-0x0000000000000000-mapping.dmp

Download
memory/3984-132-0x0000000075140000-0x00000000756F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-133-0x0000000075140000-0x00000000756F1000-memory.dmp

Filesize
5.7MB

Download
memory/3984-137-0x0000000075140000-0x00000000756F1000-memory.dmp

Filesize
5.7MB

Download
memory/4836-134-0x0000000000000000-mapping.dmp

Download
memory/4836-138-0x0000000075140000-0x00000000756F1000-memory.dmp

Filesize
5.7MB

Download
memory/4836-140-0x0000000075140000-0x00000000756F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads