njrat | 3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc

General

Target

3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe
Size

64KB
MD5

4552c7d2fcbc04b14cd616b422486c8b
SHA1

b615d31bf56fa0576f422149f3df47019b39a70d
SHA256

3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc
SHA512

ca51b7dacd425da7723122f277aceb7435ace874ebceef4159608ce934ad5d6a19b82b7b259486e6e1068a4a3c4f54d9140b533d3a3a5fa6295de36967e1efe2
SSDEEP

1536:3EFRfIIajeMzBdiGN9BbwNLi2bhtbxnCAumXG:4RfIIYnbONVv5CAFXG

Score

10^/10

njrat hacked discovery trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

127.0.0.1:1177

Mutex

41180d06ba79ca0eb6f0d961bf964eef

Attributes

reg_key
41180d06ba79ca0eb6f0d961bf964eef
splitter
|'|'|

Signatures

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

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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe

Executes dropped EXE 2 IoCs

pid	Process
2860	stick surf.exe
1808	stick surf.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 2860 set thread context of 1808	2860	stick surf.exe	88

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2500	1808	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 3 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	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stick surf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe
Token: SeDebugPrivilege	2860	stick surf.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 1704 wrote to memory of 4348	1704	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	86
PID 4348 wrote to memory of 2860	4348	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	87
PID 4348 wrote to memory of 2860	4348	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	87
PID 4348 wrote to memory of 2860	4348	3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe	87
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88
PID 2860 wrote to memory of 1808	2860	stick surf.exe	88

C:\Users\Admin\AppData\Local\Temp\3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe
"C:\Users\Admin\AppData\Local\Temp\3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe
  C:\Users\Admin\AppData\Local\Temp\3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4348
- - C:\Users\Admin\AppData\Local\Temp\stick surf.exe
    "C:\Users\Admin\AppData\Local\Temp\stick surf.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2860
  - - C:\Users\Admin\AppData\Local\Temp\stick surf.exe
      "C:\Users\Admin\AppData\Local\Temp\stick surf.exe"
      4⤵
      Executes dropped EXE
      PID:1808
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 80
        5⤵
        Program crash
        
        PID:2500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1808 -ip 1808
1⤵
PID:4844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc.exe.log

Filesize
496B

MD5
a25e0ec08ea716dcc1f709ad1e752d71

SHA1
64685efa79682636b020453e2444b3d472ed3181

SHA256
15254310d916b50af5775cf0df7e256a28242c41d6e429bc9e98709c162297f1

SHA512
2fe3e3dc28b0de7a6de5569799bdcc0eafea32043c23e56dc4f65b94fc7202dc08d87ad66311335406495377a4180070d5b7cc1b5d26bb40500068459c6346ae

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

Filesize
64KB

MD5
4552c7d2fcbc04b14cd616b422486c8b

SHA1
b615d31bf56fa0576f422149f3df47019b39a70d

SHA256
3fff7ae85bdb3e3f58ba32a41e1b9e81c142c4a88288020b9356e9fb78d4cafc

SHA512
ca51b7dacd425da7723122f277aceb7435ace874ebceef4159608ce934ad5d6a19b82b7b259486e6e1068a4a3c4f54d9140b533d3a3a5fa6295de36967e1efe2

Download Submit
memory/1704-1-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/1704-2-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/1704-0-0x00000000753A2000-0x00000000753A3000-memory.dmp

Filesize
4KB

Download
memory/1704-7-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/2860-21-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/2860-26-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/2860-22-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/4348-3-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4348-20-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/4348-8-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/4348-6-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download

Analysis

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