njrat | 81abb1776a5da5c7844a18f50a4f254eed232c6164b62e2a5fd69d4494c4b943

General

Target

antivirusbyemilv1.0.exe
Size

43KB
MD5

04b503df0753a8a4bf74035949215a47
SHA1

fde82e54526910d082a80853730969888d86befd
SHA256

81abb1776a5da5c7844a18f50a4f254eed232c6164b62e2a5fd69d4494c4b943
SHA512

4608a20bfb499bc6a0ca89cab7d080f76f3d7fb2c730492bfa6d7f6301bd50b24af7f228c6a1b5ac06f033c7367fb580279446407bfdad0004669dbdfeb82da2
SSDEEP

384:FZyd5ctOnwtOyW60GmciXEFdZBEk0z2I1zgIij+ZsNO3PlpJKkkjh/TzF7pWn3J8:PuqAwt/W6NmciXEF3p0zxuXQ/oI6+L

Score

10^/10

njrat hacked discovery trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

both-foundations.gl.at.ply.gg:60732

Mutex

Microsoft Edge Updater

Attributes

reg_key
Microsoft Edge Updater
splitter
|Hassan|

Signatures

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

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	antivirusbyemilv1.0.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java Update.exe	MicrosoftEdgeUpdater.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java Update.exe	MicrosoftEdgeUpdater.exe

Executes dropped EXE 3 IoCs

pid	Process
2736	MicrosoftEdgeUpdater.exe
4044	Server.exe
4600	Server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	antivirusbyemilv1.0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdater.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3812	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
372	antivirusbyemilv1.0.exe
2736	MicrosoftEdgeUpdater.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe
Token: 33	2736	MicrosoftEdgeUpdater.exe
Token: SeIncBasePriorityPrivilege	2736	MicrosoftEdgeUpdater.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 2736	372	antivirusbyemilv1.0.exe	82
PID 372 wrote to memory of 2736	372	antivirusbyemilv1.0.exe	82
PID 372 wrote to memory of 2736	372	antivirusbyemilv1.0.exe	82
PID 2736 wrote to memory of 3812	2736	MicrosoftEdgeUpdater.exe	88
PID 2736 wrote to memory of 3812	2736	MicrosoftEdgeUpdater.exe	88
PID 2736 wrote to memory of 3812	2736	MicrosoftEdgeUpdater.exe	88

C:\Users\Admin\AppData\Local\Temp\antivirusbyemilv1.0.exe
"C:\Users\Admin\AppData\Local\Temp\antivirusbyemilv1.0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:372
- C:\Users\Admin\AppData\Local\Temp\MicrosoftEdgeUpdater.exe
  "C:\Users\Admin\AppData\Local\Temp\MicrosoftEdgeUpdater.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3812

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4044

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Server.exe.log

Filesize
507B

MD5
25d1b50e7c0d451f3d850eb54d27ca05

SHA1
a238807715c70a335f54e80d4855644b21a9e870

SHA256
650faa13e983c9046c9030f63a5fa1c33900432ec7cb3762e015da2e7c5b34a5

SHA512
4223a26b2fabefdf1c01443ccc7bd887464d27f02694379895a040c66db472d541218d501f1c01e1bd31012d079a31baf24e20882c32cf652a09a74e3bf385f5

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

Filesize
43KB

MD5
04b503df0753a8a4bf74035949215a47

SHA1
fde82e54526910d082a80853730969888d86befd

SHA256
81abb1776a5da5c7844a18f50a4f254eed232c6164b62e2a5fd69d4494c4b943

SHA512
4608a20bfb499bc6a0ca89cab7d080f76f3d7fb2c730492bfa6d7f6301bd50b24af7f228c6a1b5ac06f033c7367fb580279446407bfdad0004669dbdfeb82da2

Download Submit
memory/372-1-0x0000000000360000-0x0000000000372000-memory.dmp

Filesize
72KB

Download
memory/372-2-0x0000000004CC0000-0x0000000004D5C000-memory.dmp

Filesize
624KB

Download
memory/372-3-0x0000000005610000-0x0000000005BB4000-memory.dmp

Filesize
5.6MB

Download
memory/372-4-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/372-5-0x0000000005100000-0x0000000005192000-memory.dmp

Filesize
584KB

Download
memory/372-15-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/372-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/2736-16-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2736-20-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2736-21-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2736-22-0x0000000005520000-0x000000000552A000-memory.dmp

Filesize
40KB

Download
memory/2736-23-0x00000000056B0000-0x0000000005716000-memory.dmp

Filesize
408KB

Download
memory/2736-24-0x00000000064E0000-0x00000000064F8000-memory.dmp

Filesize
96KB

Download
memory/2736-17-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4044-27-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4044-29-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads