njrat | d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5

General

Target

d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe
Size

30KB
MD5

4a1f729ab449aebf18a7c07caf2ce9bd
SHA1

d5a4c754fa7cde06af3e229fb6077c95d1dfc04c
SHA256

d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5
SHA512

c812e4fb7c7a420493f9f375cdd8cf608e63f4caa80e44682945bb8370a72e3ccffd7f5869e8ff7be0889f492f7eadb829a78e80cb86da6fa9bca3165837c172
SSDEEP

384:agaFCtl7Dh+oqIqEtl5rBGAiumqDUtDe4qGBsbh0w4wlAokw9OhgOL1vYRGOZzJ1:aC74oqIjjLGAcqoDeABKh0p29SgRhsH

Score

10^/10

njrat hacked by gmayka evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HackeD By Gmayka

C2

ramyok.no-ip.biz:1177

Mutex

af029b7100cbb27d8c0472b97315e8d5

Attributes

reg_key
af029b7100cbb27d8c0472b97315e8d5
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

avast.exe

pid process

308 avast.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1180 netsh.exe

pid	process
1180	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:

d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe

Drops startup file 2 IoCs

Processes:

avast.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\af029b7100cbb27d8c0472b97315e8d5.exe	avast.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\af029b7100cbb27d8c0472b97315e8d5.exe	avast.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

avast.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\af029b7100cbb27d8c0472b97315e8d5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\avast.exe\" .."	avast.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\af029b7100cbb27d8c0472b97315e8d5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\avast.exe\" .."	avast.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 45 IoCs

Processes:

avast.exe

pid	process
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe
308	avast.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

avast.exe

description pid process

Token: SeDebugPrivilege 308 avast.exe

description	pid	process
Token: SeDebugPrivilege	308	avast.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exeavast.exe

description	pid	process	target process
PID 4252 wrote to memory of 308	4252	d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe	avast.exe
PID 4252 wrote to memory of 308	4252	d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe	avast.exe
PID 4252 wrote to memory of 308	4252	d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe	avast.exe
PID 308 wrote to memory of 1180	308	avast.exe	netsh.exe
PID 308 wrote to memory of 1180	308	avast.exe	netsh.exe
PID 308 wrote to memory of 1180	308	avast.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe
"C:\Users\Admin\AppData\Local\Temp\d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4252

C:\Users\Admin\AppData\Local\Temp\avast.exe
"C:\Users\Admin\AppData\Local\Temp\avast.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:308

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\avast.exe" "avast.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1180

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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\avast.exe

Filesize
30KB

MD5
4a1f729ab449aebf18a7c07caf2ce9bd

SHA1
d5a4c754fa7cde06af3e229fb6077c95d1dfc04c

SHA256
d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5

SHA512
c812e4fb7c7a420493f9f375cdd8cf608e63f4caa80e44682945bb8370a72e3ccffd7f5869e8ff7be0889f492f7eadb829a78e80cb86da6fa9bca3165837c172

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

Filesize
30KB

MD5
4a1f729ab449aebf18a7c07caf2ce9bd

SHA1
d5a4c754fa7cde06af3e229fb6077c95d1dfc04c

SHA256
d748d6a023d67f97f954a7caf218533dabb87faf846f6726e83516c553bceaa5

SHA512
c812e4fb7c7a420493f9f375cdd8cf608e63f4caa80e44682945bb8370a72e3ccffd7f5869e8ff7be0889f492f7eadb829a78e80cb86da6fa9bca3165837c172

Download Submit
memory/308-133-0x0000000000000000-mapping.dmp

Download
memory/308-137-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/308-139-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/1180-138-0x0000000000000000-mapping.dmp

Download
memory/4252-132-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/4252-136-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads