njrat | d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0

General

Target

d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe
Size

23KB
MD5

e339f0c2452f57c995640c9663e9c74b
SHA1

a1cca2b8789b2a287529f81126059254cb4c1053
SHA256

d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0
SHA512

89c1ee3f0edf5fd61ec4376411369d78cc18fa9e0c32dda26d002305ff616b9e454395c79c526abcb978b47348a7fa46ad4d4fbf0667c680d90efbf52ca59088
SSDEEP

384:XMK6b2GZsx/Yr1+liORH1kcPFQ6Lg9gSOYRr9mRvR6JZlbw8hqIusZzZiqN:wb9glF51LRpcnuNy

Score

10^/10

njrat mrakhaf evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

MRAKHAF

C2

isuero.no-ip.info:1990

Mutex

eded8ce0cce4bae66af70ac7c7464702

Attributes

reg_key
eded8ce0cce4bae66af70ac7c7464702
splitter
|'|'|

Signatures

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

Processes:

prosesseur.exe

pid process

5076 prosesseur.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4840 netsh.exe

pid	process
5076	prosesseur.exe

pid	process
4840	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:

d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe

Drops startup file 2 IoCs

Processes:

prosesseur.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eded8ce0cce4bae66af70ac7c7464702.exe	prosesseur.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eded8ce0cce4bae66af70ac7c7464702.exe	prosesseur.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

prosesseur.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\eded8ce0cce4bae66af70ac7c7464702 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\prosesseur.exe\" .."	prosesseur.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\eded8ce0cce4bae66af70ac7c7464702 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\prosesseur.exe\" .."	prosesseur.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

prosesseur.exe

description	pid	process
Token: SeDebugPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe
Token: 33	5076	prosesseur.exe
Token: SeIncBasePriorityPrivilege	5076	prosesseur.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exeprosesseur.exe

description	pid	process	target process
PID 2620 wrote to memory of 5076	2620	d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe	prosesseur.exe
PID 2620 wrote to memory of 5076	2620	d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe	prosesseur.exe
PID 2620 wrote to memory of 5076	2620	d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe	prosesseur.exe
PID 5076 wrote to memory of 4840	5076	prosesseur.exe	netsh.exe
PID 5076 wrote to memory of 4840	5076	prosesseur.exe	netsh.exe
PID 5076 wrote to memory of 4840	5076	prosesseur.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe
"C:\Users\Admin\AppData\Local\Temp\d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2620

C:\Users\Admin\AppData\Local\Temp\prosesseur.exe
"C:\Users\Admin\AppData\Local\Temp\prosesseur.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5076

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\prosesseur.exe" "prosesseur.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4840

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\prosesseur.exe
Filesize
23KB

MD5
e339f0c2452f57c995640c9663e9c74b

SHA1
a1cca2b8789b2a287529f81126059254cb4c1053

SHA256
d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0

SHA512
89c1ee3f0edf5fd61ec4376411369d78cc18fa9e0c32dda26d002305ff616b9e454395c79c526abcb978b47348a7fa46ad4d4fbf0667c680d90efbf52ca59088

Download Submit
C:\Users\Admin\AppData\Local\Temp\prosesseur.exe
Filesize
23KB

MD5
e339f0c2452f57c995640c9663e9c74b

SHA1
a1cca2b8789b2a287529f81126059254cb4c1053

SHA256
d89aac515eb7a4b5799be662c5e74e60e83b0bb09a75c367052973a9e43ec7c0

SHA512
89c1ee3f0edf5fd61ec4376411369d78cc18fa9e0c32dda26d002305ff616b9e454395c79c526abcb978b47348a7fa46ad4d4fbf0667c680d90efbf52ca59088

Download Submit
memory/2620-132-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/2620-136-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/4840-138-0x0000000000000000-mapping.dmp

Download
memory/5076-133-0x0000000000000000-mapping.dmp

Download
memory/5076-137-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/5076-139-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads