njrat | 7a903afa3b0e0c3324e9844837254cf5524c0fc4fa5b3bd6b08d37dc207f9232

General

Target

c853e1396f96dfe4c032666734e6dc56.exe
Size

402KB
MD5

c853e1396f96dfe4c032666734e6dc56
SHA1

3726f5a69558acd0f0ba75107b553d241502ffce
SHA256

7a903afa3b0e0c3324e9844837254cf5524c0fc4fa5b3bd6b08d37dc207f9232
SHA512

858ea624d3086bb2e74cd5234574e62d6cd459a22ee9bf2ac299b4412573feb8a44d331f90db5de723308eea89a586a28320bb11ab852d5a24023e9020154d3d
SSDEEP

6144:jmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDgU:YSmLAuEY71fviagATFmebVQDcYcg

Score

10^/10

njrat pdf evasion persistence trojan upx

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

pdf

C2

hhhmach.ddns.net:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2600 netsh.exe

pid	process
2600	netsh.exe

Drops startup file 2 IoCs

Processes:

Trojan.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe

Executes dropped EXE 2 IoCs

Processes:

test.exeTrojan.exe

pid process

804 test.exe
2532 Trojan.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exetest.exe

pid process

2208 cmd.exe
804 test.exe

pid	process
804	test.exe
2532	Trojan.exe

pid	process
2208	cmd.exe
804	test.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral1/memory/2360-17-0x0000000000400000-0x00000000004FB000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Trojan.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 33 IoCs

Processes:

Trojan.exe

pid	process
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe
2532	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Trojan.exe

description pid process

Token: SeDebugPrivilege 2532 Trojan.exe

description	pid	process
Token: SeDebugPrivilege	2532	Trojan.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

c853e1396f96dfe4c032666734e6dc56.execmd.exetest.exeTrojan.exe

description	pid	process	target process
PID 2360 wrote to memory of 2208	2360	c853e1396f96dfe4c032666734e6dc56.exe	cmd.exe
PID 2360 wrote to memory of 2208	2360	c853e1396f96dfe4c032666734e6dc56.exe	cmd.exe
PID 2360 wrote to memory of 2208	2360	c853e1396f96dfe4c032666734e6dc56.exe	cmd.exe
PID 2360 wrote to memory of 2208	2360	c853e1396f96dfe4c032666734e6dc56.exe	cmd.exe
PID 2208 wrote to memory of 804	2208	cmd.exe	test.exe
PID 2208 wrote to memory of 804	2208	cmd.exe	test.exe
PID 2208 wrote to memory of 804	2208	cmd.exe	test.exe
PID 2208 wrote to memory of 804	2208	cmd.exe	test.exe
PID 804 wrote to memory of 2532	804	test.exe	Trojan.exe
PID 804 wrote to memory of 2532	804	test.exe	Trojan.exe
PID 804 wrote to memory of 2532	804	test.exe	Trojan.exe
PID 804 wrote to memory of 2532	804	test.exe	Trojan.exe
PID 2532 wrote to memory of 2600	2532	Trojan.exe	netsh.exe
PID 2532 wrote to memory of 2600	2532	Trojan.exe	netsh.exe
PID 2532 wrote to memory of 2600	2532	Trojan.exe	netsh.exe
PID 2532 wrote to memory of 2600	2532	Trojan.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\c853e1396f96dfe4c032666734e6dc56.exe
"C:\Users\Admin\AppData\Local\Temp\c853e1396f96dfe4c032666734e6dc56.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:804
  - - C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2532
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        
        PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\test.exe

Filesize
78KB

MD5
42c5854aa0709d8bf6c28ea82c67b9a5

SHA1
124ea473f0572009de85a4a46f361109f4fae7d6

SHA256
71e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb

SHA512
c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a

Download Submit
memory/804-5-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Filesize
5.7MB

Download
memory/804-6-0x0000000000250000-0x0000000000290000-memory.dmp

Filesize
256KB

Download
memory/804-7-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Filesize
5.7MB

Download
memory/804-15-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Filesize
5.7MB

Download
memory/2360-0-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2360-17-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2532-16-0x0000000000B40000-0x0000000000B80000-memory.dmp

Filesize
256KB

Download
memory/2532-18-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Filesize
5.7MB

Download
memory/2532-20-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads