njrat | 17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678

General

Target

17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exe
Size

23KB
MD5

7a30155400c382d970dd3e9a2b1cf51c
SHA1

5d49e2d1198b6f2a66b97cd829870867a6087f6d
SHA256

17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678
SHA512

525185ee05fd176fd6c8705c207fed3e59892d1eb9cd9f03998219edf9496af13f712275bb83e0c9a14ba1659051a8dbe98a67730cb1a930b39ef9f591bc4687
SSDEEP

384:fluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZ6yG:oOmhtIiRpcnuX

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

mc-blacklife.no-ip.biz:5552

Mutex

3f4e358b856b31a528301fb65300dd44

Attributes

reg_key
3f4e358b856b31a528301fb65300dd44
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

2284 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3364 netsh.exe

pid	process
2284	server.exe

pid	process
3364	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:

17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3f4e358b856b31a528301fb65300dd44 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3f4e358b856b31a528301fb65300dd44 = "\"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 27 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe
Token: 33	2284	server.exe
Token: SeIncBasePriorityPrivilege	2284	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exeserver.exe

description	pid	process	target process
PID 3876 wrote to memory of 2284	3876	17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exe	server.exe
PID 3876 wrote to memory of 2284	3876	17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exe	server.exe
PID 3876 wrote to memory of 2284	3876	17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exe	server.exe
PID 2284 wrote to memory of 3364	2284	server.exe	netsh.exe
PID 2284 wrote to memory of 3364	2284	server.exe	netsh.exe
PID 2284 wrote to memory of 3364	2284	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exe
"C:\Users\Admin\AppData\Local\Temp\17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3876

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:2284

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:3364

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
7a30155400c382d970dd3e9a2b1cf51c

SHA1
5d49e2d1198b6f2a66b97cd829870867a6087f6d

SHA256
17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678

SHA512
525185ee05fd176fd6c8705c207fed3e59892d1eb9cd9f03998219edf9496af13f712275bb83e0c9a14ba1659051a8dbe98a67730cb1a930b39ef9f591bc4687

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
7a30155400c382d970dd3e9a2b1cf51c

SHA1
5d49e2d1198b6f2a66b97cd829870867a6087f6d

SHA256
17a21bd371c3e54a64af64ac04f697143143cfc11cbee9e7a3cbc3054d042678

SHA512
525185ee05fd176fd6c8705c207fed3e59892d1eb9cd9f03998219edf9496af13f712275bb83e0c9a14ba1659051a8dbe98a67730cb1a930b39ef9f591bc4687

Download Submit
memory/2284-134-0x0000000000000000-mapping.dmp

Download
memory/2284-138-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/2284-140-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/3364-139-0x0000000000000000-mapping.dmp

Download
memory/3876-132-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/3876-133-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/3876-137-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads