njrat | 071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92

General

Target

071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe
Size

64KB
MD5

25e50be90bfd526318a41296bfb5b650
SHA1

9a57776f4110fda99adb8e7e86797d6caf96dc7f
SHA256

071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92
SHA512

c187fb49605ba2c9c4a6ca2c68dc6c263ae26552a2fdf00bc6cd508f01abc8526741171ea6c80aca2c9ed5665c734a7cb21d210e5429801e71773ed20701682e
SSDEEP

1536:3EFRfIIajeMzBdiGN9BbwNLi2bhtbxnCAumX:4RfIIYnbONVv5CAFX

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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe

Executes dropped EXE 2 IoCs

pid	Process
4920	stick surf.exe
1844	stick surf.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4128 set thread context of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4920 set thread context of 1844	4920	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
4388	1844	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	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stick surf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe
Token: SeDebugPrivilege	4920	stick surf.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 4128 wrote to memory of 3144	4128	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	86
PID 3144 wrote to memory of 4920	3144	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	87
PID 3144 wrote to memory of 4920	3144	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	87
PID 3144 wrote to memory of 4920	3144	071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe	87
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88
PID 4920 wrote to memory of 1844	4920	stick surf.exe	88

C:\Users\Admin\AppData\Local\Temp\071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe
"C:\Users\Admin\AppData\Local\Temp\071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4128
- C:\Users\Admin\AppData\Local\Temp\071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe
  C:\Users\Admin\AppData\Local\Temp\071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3144
- - 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:4920
  - - C:\Users\Admin\AppData\Local\Temp\stick surf.exe
      "C:\Users\Admin\AppData\Local\Temp\stick surf.exe"
      4⤵
      Executes dropped EXE
      PID:1844
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 80
        5⤵
        Program crash
        
        PID:4388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1844 -ip 1844
1⤵
PID:3352

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\071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92N.exe.log

Filesize
496B

MD5
759390dcc1aaa2fbaf157db7a617f27d

SHA1
7788e0f06fc80204b8205366febb932c8a1daafc

SHA256
d453de6558a2194099725ba01e88ba516979f059f260d99d2ec9969d668a509f

SHA512
e95894be0ab38096a7b82480ee16b7802b5ec64ccca9b105384d46583d0e5284e90229ced4b33fd76870c4a97e425494a65a37bc7f7cebc8928d41c93e2573c2

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

Filesize
64KB

MD5
25e50be90bfd526318a41296bfb5b650

SHA1
9a57776f4110fda99adb8e7e86797d6caf96dc7f

SHA256
071fc6ca9b912fc950313655189dba484eea959bf925cabb056de793aab61f92

SHA512
c187fb49605ba2c9c4a6ca2c68dc6c263ae26552a2fdf00bc6cd508f01abc8526741171ea6c80aca2c9ed5665c734a7cb21d210e5429801e71773ed20701682e

Download Submit
memory/3144-6-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/3144-21-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/3144-3-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3144-8-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4128-7-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4128-0-0x0000000074D42000-0x0000000074D43000-memory.dmp

Filesize
4KB

Download
memory/4128-2-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4128-1-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4920-22-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4920-20-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4920-23-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4920-27-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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