njrat | b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061

General

Target

b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe
Size

29KB
MD5

08b3554a1d6704dbc2476d217410b814
SHA1

33384df5e42ab15d62d12f7ca99ea59f79c1791a
SHA256

b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061
SHA512

8f58901ba3e6ffb63b13adff00126ca2d25695835006763a26438c9832b5f664decfc2ed35ecb8b3768aa966787743d715fc36ceea90a0e78686e05b8ee0ad50
SSDEEP

384:HZwIpl79TbsiKQ17H5FoQriWmqDGbLTecEGBsbh0w4wlAokw9OhgOL1vYRGOZzcX:HV7tsiKojBr8q63TeWBKh0p29SgR+Z

Score

10^/10

njrat mzn | page evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

MZN | Page

C2

th3-jazzz.no-ip.biz:1177

Mutex

d2711fd6805744d863b911b936c5ce74

Attributes

reg_key
d2711fd6805744d863b911b936c5ce74
splitter
|'|'|

Signatures

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

Processes:

explori.exe

pid process

2068 explori.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1804 netsh.exe

pid	process
1804	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:

b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe

Drops startup file 2 IoCs

Processes:

explori.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d2711fd6805744d863b911b936c5ce74.exe	explori.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d2711fd6805744d863b911b936c5ce74.exe	explori.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explori.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\d2711fd6805744d863b911b936c5ce74 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explori.exe\" .."	explori.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\d2711fd6805744d863b911b936c5ce74 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explori.exe\" .."	explori.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 48 IoCs

Processes:

explori.exe

pid	process
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe
2068	explori.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

explori.exe

description pid process

Token: SeDebugPrivilege 2068 explori.exe

description	pid	process
Token: SeDebugPrivilege	2068	explori.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exeexplori.exe

description	pid	process	target process
PID 4344 wrote to memory of 2068	4344	b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe	explori.exe
PID 4344 wrote to memory of 2068	4344	b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe	explori.exe
PID 4344 wrote to memory of 2068	4344	b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe	explori.exe
PID 2068 wrote to memory of 1804	2068	explori.exe	netsh.exe
PID 2068 wrote to memory of 1804	2068	explori.exe	netsh.exe
PID 2068 wrote to memory of 1804	2068	explori.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe
"C:\Users\Admin\AppData\Local\Temp\b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4344

C:\Users\Admin\AppData\Local\Temp\explori.exe
"C:\Users\Admin\AppData\Local\Temp\explori.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:2068

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explori.exe" "explori.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1804

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\explori.exe

Filesize
29KB

MD5
08b3554a1d6704dbc2476d217410b814

SHA1
33384df5e42ab15d62d12f7ca99ea59f79c1791a

SHA256
b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061

SHA512
8f58901ba3e6ffb63b13adff00126ca2d25695835006763a26438c9832b5f664decfc2ed35ecb8b3768aa966787743d715fc36ceea90a0e78686e05b8ee0ad50

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

Filesize
29KB

MD5
08b3554a1d6704dbc2476d217410b814

SHA1
33384df5e42ab15d62d12f7ca99ea59f79c1791a

SHA256
b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061

SHA512
8f58901ba3e6ffb63b13adff00126ca2d25695835006763a26438c9832b5f664decfc2ed35ecb8b3768aa966787743d715fc36ceea90a0e78686e05b8ee0ad50

Download Submit
memory/1804-137-0x0000000000000000-mapping.dmp

Download
memory/2068-133-0x0000000000000000-mapping.dmp

Download
memory/2068-138-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/2068-139-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/4344-132-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/4344-136-0x0000000074B40000-0x00000000750F1000-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