njrat | e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949

Analysis

max time kernel
143s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 17:33

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General

Target

e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe
Size

23KB
MD5

1f544a7ceb2cc4c868b1374b5991a15a
SHA1

97746526ee8cfa63a36f0da3775d4b7ff64adb38
SHA256

e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949
SHA512

0cbcf963f17a3026012d99bd04b51fe0975ed35eebbbced5cd9b505b8d4934fac9fe0c8851152354b970b808e1ee61accce1dac8903c2c8acfe62d4ae4ca1521
SSDEEP

384:rwTSiYWD2Z7w3CsJeiecwJ3fw6FgzeAh33RtmRvR6JZlbw8hqIusZzZQl:mvZiBK1edJRpcnub

Score

10^/10

njrat - 5min evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

- 5Min

hiddenman.duckdns.org:5552

Mutex

3360867c4461f88b6b57142fca68a212

Attributes

reg_key
3360867c4461f88b6b57142fca68a212
splitter
|'|'|

Signatures

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

Processes:

svhost.exe

pid process

3428 svhost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4636 netsh.exe

pid	process
3428	svhost.exe

pid	process
4636	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:

e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svhost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3360867c4461f88b6b57142fca68a212 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svhost.exe\" .."	svhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3360867c4461f88b6b57142fca68a212 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svhost.exe\" .."	svhost.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 WriteProcessMemory 6 IoCs

Processes:

e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exesvhost.exe

description	pid	process	target process
PID 2748 wrote to memory of 3428	2748	e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe	svhost.exe
PID 2748 wrote to memory of 3428	2748	e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe	svhost.exe
PID 2748 wrote to memory of 3428	2748	e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe	svhost.exe
PID 3428 wrote to memory of 4636	3428	svhost.exe	netsh.exe
PID 3428 wrote to memory of 4636	3428	svhost.exe	netsh.exe
PID 3428 wrote to memory of 4636	3428	svhost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe
"C:\Users\Admin\AppData\Local\Temp\e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2748

C:\Users\Admin\AppData\Roaming\svhost.exe
"C:\Users\Admin\AppData\Roaming\svhost.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3428

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svhost.exe" "svhost.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4636

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\svhost.exe
Filesize
23KB

MD5
1f544a7ceb2cc4c868b1374b5991a15a

SHA1
97746526ee8cfa63a36f0da3775d4b7ff64adb38

SHA256
e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949

SHA512
0cbcf963f17a3026012d99bd04b51fe0975ed35eebbbced5cd9b505b8d4934fac9fe0c8851152354b970b808e1ee61accce1dac8903c2c8acfe62d4ae4ca1521

Download Submit
C:\Users\Admin\AppData\Roaming\svhost.exe
Filesize
23KB

MD5
1f544a7ceb2cc4c868b1374b5991a15a

SHA1
97746526ee8cfa63a36f0da3775d4b7ff64adb38

SHA256
e930e02bc4647e790310b342f44dda5bff079ff0ebe4f2ad624360fbb064e949

SHA512
0cbcf963f17a3026012d99bd04b51fe0975ed35eebbbced5cd9b505b8d4934fac9fe0c8851152354b970b808e1ee61accce1dac8903c2c8acfe62d4ae4ca1521

Download Submit
memory/2748-132-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/2748-133-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/2748-138-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/3428-134-0x0000000000000000-mapping.dmp

Download
memory/3428-137-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/3428-139-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/4636-140-0x0000000000000000-mapping.dmp

Download