njrat | c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f

Analysis

max time kernel
283s
max time network
308s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 11:40

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General

Target

c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe
Size

23KB
MD5

7381e9658573cd91dc4bcfa8ca16b6c3
SHA1

3dbdabbfd7ff982167877d195fc6575cf35063e6
SHA256

c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f
SHA512

cde152a1449c563b276c83fd4fa22c122ce2ae36bbb0ca07e5de1a54895f3c229a446702af9c55d45042fef6a8111c21c391d91b433912c7fbdc47edbdea5a68
SSDEEP

384:U8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZtM:zXcwt3tRpcnuJ

Score

10^/10

njrat system evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

system

127.0.0.1:5552

Mutex

312690745b3951573ca7c21d011ece33

Attributes

reg_key
312690745b3951573ca7c21d011ece33
splitter
|'|'|

Signatures

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

Processes:

google.exe

pid process

3736 google.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3396 netsh.exe

pid	process
3736	google.exe

pid	process
3396	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:

c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.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:

c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exegoogle.exe

description	pid	process	target process
PID 1388 wrote to memory of 3736	1388	c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe	google.exe
PID 1388 wrote to memory of 3736	1388	c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe	google.exe
PID 1388 wrote to memory of 3736	1388	c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe	google.exe
PID 3736 wrote to memory of 3396	3736	google.exe	netsh.exe
PID 3736 wrote to memory of 3396	3736	google.exe	netsh.exe
PID 3736 wrote to memory of 3396	3736	google.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe
"C:\Users\Admin\AppData\Local\Temp\c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1388

C:\Users\Admin\AppData\Local\Temp\google.exe
"C:\Users\Admin\AppData\Local\Temp\google.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3736

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\google.exe" "google.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:3396

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

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\Local\Temp\google.exe
Filesize
23KB

MD5
7381e9658573cd91dc4bcfa8ca16b6c3

SHA1
3dbdabbfd7ff982167877d195fc6575cf35063e6

SHA256
c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f

SHA512
cde152a1449c563b276c83fd4fa22c122ce2ae36bbb0ca07e5de1a54895f3c229a446702af9c55d45042fef6a8111c21c391d91b433912c7fbdc47edbdea5a68

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

MD5
7381e9658573cd91dc4bcfa8ca16b6c3

SHA1
3dbdabbfd7ff982167877d195fc6575cf35063e6

SHA256
c031c4aa33d22d49250a70fb5443ca55edc70c3465ff8309646eb80b1276e73f

SHA512
cde152a1449c563b276c83fd4fa22c122ce2ae36bbb0ca07e5de1a54895f3c229a446702af9c55d45042fef6a8111c21c391d91b433912c7fbdc47edbdea5a68

Download Submit
memory/1388-132-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/1388-133-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/1388-137-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/3396-139-0x0000000000000000-mapping.dmp

Download
memory/3736-134-0x0000000000000000-mapping.dmp

Download
memory/3736-138-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/3736-140-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download