njrat | 8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd

Analysis

max time kernel
153s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 00:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd.exe
Size

82KB
MD5

6c670d327ca3c047dd87e04519adad30
SHA1

fd6f02ad9dee2457ee8bbefceeaa437bee636fd2
SHA256

8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd
SHA512

f0d1a41904b80e358c041d4b54d28a56e7dd7f6eb12d64deff091508b493f3fcd4c02a4d675f1e1cdee9dd929e8ed779761ef578c4c8944749bb80233c783451
SSDEEP

1536:KfcJmBgWnjIJSZwlB2hBjsV+1q51ALBYU:KcugiIRB2jKU

Score

10^/10

njrat evasion trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
1856	explorer.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4996	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd.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 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe
Token: 33	1856	explorer.exe
Token: SeIncBasePriorityPrivilege	1856	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 1856	1836	8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd.exe	85
PID 1836 wrote to memory of 1856	1836	8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd.exe	85
PID 1836 wrote to memory of 1856	1836	8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd.exe	85
PID 1856 wrote to memory of 4996	1856	explorer.exe	89
PID 1856 wrote to memory of 4996	1856	explorer.exe	89
PID 1856 wrote to memory of 4996	1856	explorer.exe	89

C:\Users\Admin\AppData\Local\Temp\8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd.exe
"C:\Users\Admin\AppData\Local\Temp\8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Users\Admin\AppData\Local\Temp\explorer.exe
  "C:\Users\Admin\AppData\Local\Temp\explorer.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer.exe" "explorer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4996

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\explorer.exe

Filesize
82KB

MD5
6c670d327ca3c047dd87e04519adad30

SHA1
fd6f02ad9dee2457ee8bbefceeaa437bee636fd2

SHA256
8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd

SHA512
f0d1a41904b80e358c041d4b54d28a56e7dd7f6eb12d64deff091508b493f3fcd4c02a4d675f1e1cdee9dd929e8ed779761ef578c4c8944749bb80233c783451

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

Filesize
82KB

MD5
6c670d327ca3c047dd87e04519adad30

SHA1
fd6f02ad9dee2457ee8bbefceeaa437bee636fd2

SHA256
8e76fd1b71135c84d74fb41915f637309b9584b6565886f5f26cdf142df114cd

SHA512
f0d1a41904b80e358c041d4b54d28a56e7dd7f6eb12d64deff091508b493f3fcd4c02a4d675f1e1cdee9dd929e8ed779761ef578c4c8944749bb80233c783451

Download Submit
memory/1836-132-0x00000000000F0000-0x000000000010C000-memory.dmp

Filesize
112KB

Download
memory/1836-133-0x0000000004A40000-0x0000000004ADC000-memory.dmp

Filesize
624KB

Download
memory/1836-134-0x00000000053D0000-0x0000000005974000-memory.dmp

Filesize
5.6MB

Download
memory/1856-139-0x00000000055F0000-0x0000000005682000-memory.dmp

Filesize
584KB

Download
memory/1856-140-0x0000000005580000-0x000000000558A000-memory.dmp

Filesize
40KB

Download