njrat | 3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498

General

Target

3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe
Size

93KB
MD5

59bc430c7e94eda88ba59fc1fa3d2c0c
SHA1

7af6f4bd5d7c38ad87432785344f3016e873b151
SHA256

3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498
SHA512

578f3b0c79a83bf85ed945dd6ff8e3f6469ce40bfbf7058849f6901a64e12719c73a98fedb3d877ac9b8e7a4fb1aa72186431f7ad933c1e705d6298d33ff2b07
SSDEEP

768:8Y3Jwmm6h1ychQVHwUM7k+rhHX9/NhUQBi0yXxrjEtCdnl2pi1Rz4Rk39sGdpTgM:Nw76rCHwB4+r9ptcjEwzGi1dDtDTgS

Score

10^/10

njrat hacked evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

hakim32.ddns.net:2000

7.tcp.eu.ngrok.io:10250

Mutex

bd45e682ad8a06dcb9168f1be41d3129

Attributes

reg_key
bd45e682ad8a06dcb9168f1be41d3129
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

2208 netsh.exe

pid	process
2208	netsh.exe

Drops startup file 4 IoCs

Processes:

server.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Epic Games.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Epic Games.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bd45e682ad8a06dcb9168f1be41d3129Epic Games.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bd45e682ad8a06dcb9168f1be41d3129Epic Games.exe	server.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2556 server.exe

pid	process
2556	server.exe

Loads dropped DLL 2 IoCs

Processes:

3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe

pid	process
2876	3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe
2876	3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service
T1102

Processes:

flow ioc

2 7.tcp.eu.ngrok.io
30 7.tcp.eu.ngrok.io
55 7.tcp.eu.ngrok.io

flow	ioc
2	7.tcp.eu.ngrok.io
30	7.tcp.eu.ngrok.io
55	7.tcp.eu.ngrok.io

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

Processes:

server.exe

description	ioc	process
File created	F:\autorun.inf	server.exe
File opened for modification	F:\autorun.inf	server.exe
File created	C:\autorun.inf	server.exe
File opened for modification	C:\autorun.inf	server.exe

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

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

server.exe

pid process

2556 server.exe

pid	process
2556	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe
Token: 33	2556	server.exe
Token: SeIncBasePriorityPrivilege	2556	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exeserver.exe

description	pid	process	target process
PID 2876 wrote to memory of 2556	2876	3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe	server.exe
PID 2876 wrote to memory of 2556	2876	3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe	server.exe
PID 2876 wrote to memory of 2556	2876	3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe	server.exe
PID 2876 wrote to memory of 2556	2876	3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe	server.exe
PID 2556 wrote to memory of 2208	2556	server.exe	netsh.exe
PID 2556 wrote to memory of 2208	2556	server.exe	netsh.exe
PID 2556 wrote to memory of 2208	2556	server.exe	netsh.exe
PID 2556 wrote to memory of 2208	2556	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe
"C:\Users\Admin\AppData\Local\Temp\3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2876

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Drops startup file
- Executes dropped EXE
- Drops autorun.inf file
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556

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:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
7eb860abfe2281298575b5216ef42bc6

SHA1
d4dfd7ac22dcd07da34306c40b4e5367a969cda5

SHA256
83d46461bf45f00cb4fc5df9679b2bd82dbf54eeb022ca1711eefb4b2e7b7689

SHA512
427bfc41f0514ee10d400eea38f22f6fac6f9d5ecd84ad7adb1161ff9355e47c04ff411e172fafcd23c137ad1528ed2f2cb95d247613ae5550c089633f18994d

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
59bc430c7e94eda88ba59fc1fa3d2c0c

SHA1
7af6f4bd5d7c38ad87432785344f3016e873b151

SHA256
3477c51b4db8004874eeb950fced5e89d636b4ad123595ca403f8fca5c430498

SHA512
578f3b0c79a83bf85ed945dd6ff8e3f6469ce40bfbf7058849f6901a64e12719c73a98fedb3d877ac9b8e7a4fb1aa72186431f7ad933c1e705d6298d33ff2b07

Download Submit
memory/2556-16-0x0000000002230000-0x0000000002270000-memory.dmp

Filesize
256KB

Download
memory/2556-17-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2556-15-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2556-31-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2876-0-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2876-2-0x0000000000600000-0x0000000000640000-memory.dmp

Filesize
256KB

Download
memory/2876-1-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2876-14-0x00000000745F0000-0x0000000074B9B000-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