njrat | e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010

General

Target

e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe
Size

23KB
MD5

355db377b53d99e5fc1445e25d4c243e
SHA1

880c2496355e289946e02cbe870b7d48f56a9e3a
SHA256

e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010
SHA512

6a72db71d190754d7e1bd36ffc54ebb3b92e2134256368d180e32508e947636b1ef641b5eda02dad9183e4d93e2bd21cec3df6aa4707b7c498f367ddfa626659
SSDEEP

384:2MK6b2GZsx/Yr1+liORH1kcPFQ6Lg9gSOYRr9mRvR6JZlbw8hqIusZzZiqP:hb9glF51LRpcnuN8

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

4948 prosesseur.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

5048 netsh.exe

pid	process
4948	prosesseur.exe

pid	process
5048	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:

e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe

Drops startup file 2 IoCs

Processes:

prosesseur.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eded8ce0cce4bae66af70ac7c7464702.exe	prosesseur.exe
File opened for modification	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-1-5-21-2386679933-1492765628-3466841596-1000\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 21 IoCs

Processes:

prosesseur.exe

description	pid	process
Token: SeDebugPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe
Token: 33	4948	prosesseur.exe
Token: SeIncBasePriorityPrivilege	4948	prosesseur.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exeprosesseur.exe

description	pid	process	target process
PID 384 wrote to memory of 4948	384	e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe	prosesseur.exe
PID 384 wrote to memory of 4948	384	e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe	prosesseur.exe
PID 384 wrote to memory of 4948	384	e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe	prosesseur.exe
PID 4948 wrote to memory of 5048	4948	prosesseur.exe	netsh.exe
PID 4948 wrote to memory of 5048	4948	prosesseur.exe	netsh.exe
PID 4948 wrote to memory of 5048	4948	prosesseur.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe
"C:\Users\Admin\AppData\Local\Temp\e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:384

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:4948

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:5048

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\prosesseur.exe

Filesize
23KB

MD5
355db377b53d99e5fc1445e25d4c243e

SHA1
880c2496355e289946e02cbe870b7d48f56a9e3a

SHA256
e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010

SHA512
6a72db71d190754d7e1bd36ffc54ebb3b92e2134256368d180e32508e947636b1ef641b5eda02dad9183e4d93e2bd21cec3df6aa4707b7c498f367ddfa626659

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

Filesize
23KB

MD5
355db377b53d99e5fc1445e25d4c243e

SHA1
880c2496355e289946e02cbe870b7d48f56a9e3a

SHA256
e8b30fe51545f3a3464e20f020574791c5525ecc1b2e66c96ef96f7fe871a010

SHA512
6a72db71d190754d7e1bd36ffc54ebb3b92e2134256368d180e32508e947636b1ef641b5eda02dad9183e4d93e2bd21cec3df6aa4707b7c498f367ddfa626659

Download Submit
memory/384-132-0x0000000075440000-0x00000000759F1000-memory.dmp

Filesize
5.7MB

Download
memory/384-133-0x0000000075440000-0x00000000759F1000-memory.dmp

Filesize
5.7MB

Download
memory/384-137-0x0000000075440000-0x00000000759F1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-134-0x0000000000000000-mapping.dmp

Download
memory/4948-138-0x0000000075440000-0x00000000759F1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-140-0x0000000075440000-0x00000000759F1000-memory.dmp

Filesize
5.7MB

Download
memory/5048-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads