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

2368 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:

test.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation test.exe

pid	process
2368	netsh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	test.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

2292 test.exe
4232 Trojan.exe

pid	process
2292	test.exe
4232	Trojan.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1076-0-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral2/memory/1076-22-0x0000000000400000-0x00000000004FB000-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-1-5-21-399997616-3400990511-967324271-1000\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
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3800 1076 WerFault.exe c853e1396f96dfe4c032666734e6dc56.exe
2268 1076 WerFault.exe c853e1396f96dfe4c032666734e6dc56.exe

pid	pid_target	process	target process
3800	1076	WerFault.exe	c853e1396f96dfe4c032666734e6dc56.exe
2268	1076	WerFault.exe	c853e1396f96dfe4c032666734e6dc56.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

Trojan.exe

pid	process
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe
4232	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Trojan.exe

description pid process

Token: SeDebugPrivilege 4232 Trojan.exe

description	pid	process
Token: SeDebugPrivilege	4232	Trojan.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

c853e1396f96dfe4c032666734e6dc56.execmd.exetest.exeTrojan.exe

description	pid	process	target process
PID 1076 wrote to memory of 4788	1076	c853e1396f96dfe4c032666734e6dc56.exe	cmd.exe
PID 1076 wrote to memory of 4788	1076	c853e1396f96dfe4c032666734e6dc56.exe	cmd.exe
PID 1076 wrote to memory of 4788	1076	c853e1396f96dfe4c032666734e6dc56.exe	cmd.exe
PID 4788 wrote to memory of 2292	4788	cmd.exe	test.exe
PID 4788 wrote to memory of 2292	4788	cmd.exe	test.exe
PID 4788 wrote to memory of 2292	4788	cmd.exe	test.exe
PID 2292 wrote to memory of 4232	2292	test.exe	Trojan.exe
PID 2292 wrote to memory of 4232	2292	test.exe	Trojan.exe
PID 2292 wrote to memory of 4232	2292	test.exe	Trojan.exe
PID 4232 wrote to memory of 2368	4232	Trojan.exe	netsh.exe
PID 4232 wrote to memory of 2368	4232	Trojan.exe	netsh.exe
PID 4232 wrote to memory of 2368	4232	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:1076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1076 -s 240
2⤵
- Program crash
PID:3800

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c test.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4788

C:\Users\Admin\AppData\Local\Temp\test.exe
test.exe
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2292

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:4232

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:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1076 -s 164
2⤵
- Program crash
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1076 -ip 1076
1⤵
PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1076 -ip 1076
1⤵
PID:2264

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\test.exe
Filesize
78KB

MD5
42c5854aa0709d8bf6c28ea82c67b9a5

SHA1
124ea473f0572009de85a4a46f361109f4fae7d6

SHA256
71e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb

SHA512
c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a

Download Submit
memory/1076-0-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/1076-22-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2292-6-0x0000000001090000-0x00000000010A0000-memory.dmp

Filesize
64KB

Download
memory/2292-7-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/2292-18-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/2292-5-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4232-17-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4232-19-0x0000000000E90000-0x0000000000EA0000-memory.dmp

Filesize
64KB

Download
memory/4232-21-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4232-23-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4232-24-0x0000000000E90000-0x0000000000EA0000-memory.dmp

Filesize
64KB

Download
memory/4232-25-0x0000000074A90000-0x0000000075041000-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