njrat | 7bddc54d8f7c4721bf637f97103ab8c6235a4173f45252cc792f483f8cf0a34d

General

Target

Blitzedv12.exe
Size

1.7MB
MD5

38451c0bdaece2d4829f356c8b0487c6
SHA1

f379d04e5748cd12e2ef2c2dc255e36089693c84
SHA256

7bddc54d8f7c4721bf637f97103ab8c6235a4173f45252cc792f483f8cf0a34d
SHA512

ce620a8bea4792bad269f24cb737c9cdb4c9fc0ce70543957a04b7ba13ed8de2c0c18fa12552903c3222f91bba90e3f9b02bb8b29cee3634d5ffdc6372ca21a7
SSDEEP

24576:LxAskWeOT4n5lLHxnpL2Q/NLmKgDJ68p4C8BsePDigEoXh7O83igweBAWgtE:NAznU4n9t2ELj18p4BDifoM83ig9ApS

Score

10^/10

njrat mybot persistence trojan

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

MyBot

C2

winter-rd.at.ply.gg:5637

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

Signatures

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

Processes:

Blitzedv12.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Blitzedv12.exe

Drops startup file 1 IoCs

Processes:

1.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk 1.exe
Executes dropped EXE 2 IoCs

Processes:

1.exe2.exe

pid process

1352 1.exe
4768 2.exe
Loads dropped DLL 1 IoCs

Processes:

2.exe

pid process

4768 2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	1.exe

pid	process
1352	1.exe
4768	2.exe

pid	process
4768	2.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	1.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 1 IoCs

Processes:

1.exe

description pid process

Token: SeDebugPrivilege 1352 1.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

2.exe

pid process

4768 2.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

2.exe

pid process

4768 2.exe
4768 2.exe

description	pid	process
Token: SeDebugPrivilege	1352	1.exe

pid	process
4768	2.exe

pid	process
4768	2.exe
4768	2.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Blitzedv12.exe1.exe

description	pid	process	target process
PID 3972 wrote to memory of 1352	3972	Blitzedv12.exe	1.exe
PID 3972 wrote to memory of 1352	3972	Blitzedv12.exe	1.exe
PID 3972 wrote to memory of 1352	3972	Blitzedv12.exe	1.exe
PID 3972 wrote to memory of 4768	3972	Blitzedv12.exe	2.exe
PID 3972 wrote to memory of 4768	3972	Blitzedv12.exe	2.exe
PID 3972 wrote to memory of 4768	3972	Blitzedv12.exe	2.exe
PID 1352 wrote to memory of 4272	1352	1.exe	attrib.exe
PID 1352 wrote to memory of 4272	1352	1.exe	attrib.exe
PID 1352 wrote to memory of 4272	1352	1.exe	attrib.exe
PID 1352 wrote to memory of 4084	1352	1.exe	attrib.exe
PID 1352 wrote to memory of 4084	1352	1.exe	attrib.exe
PID 1352 wrote to memory of 4084	1352	1.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

4272 attrib.exe
4084 attrib.exe

pid	process
4272	attrib.exe
4084	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Blitzedv12.exe
"C:\Users\Admin\AppData\Local\Temp\Blitzedv12.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3972

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1352

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe"
3⤵
- Views/modifies file attributes
PID:4272

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.exe"
3⤵
- Views/modifies file attributes
PID:4084

C:\Users\Admin\AppData\Local\Temp\2.exe
"C:\Users\Admin\AppData\Local\Temp\2.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4768

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1.exe
Filesize
27KB

MD5
a01b8321216c87dcaf324746fa8a61cf

SHA1
26364290161779816862d83634a415acc2685546

SHA256
19652811abd661de04e5ca7e228af54809f3e9b73204baad477ea0ecef2b557e

SHA512
7e1657d5b6ca5d4f5fd036de6ec411d118ea58360889f846c2a69ccb7eb68bbecf5ca5ffcb785b0a6a5e8796280e57289e610d754f2e60c0284e69935b124f39

Download Submit
C:\Users\Admin\AppData\Local\Temp\1.exe
Filesize
27KB

MD5
a01b8321216c87dcaf324746fa8a61cf

SHA1
26364290161779816862d83634a415acc2685546

SHA256
19652811abd661de04e5ca7e228af54809f3e9b73204baad477ea0ecef2b557e

SHA512
7e1657d5b6ca5d4f5fd036de6ec411d118ea58360889f846c2a69ccb7eb68bbecf5ca5ffcb785b0a6a5e8796280e57289e610d754f2e60c0284e69935b124f39

Download Submit
C:\Users\Admin\AppData\Local\Temp\2.exe
Filesize
1.6MB

MD5
228a69dc15032fd0fb7100ff8561185e

SHA1
f8dbc89fed8078da7f306cb78b92ce04a0bdeb00

SHA256
920bec9d500f6446b84399ab4c84858d0f0d7d1abb2e0377399ebbc4bafad709

SHA512
373621c4743fa72571b3c8375aa6f7852303a821558b016b002d2af07154787d978f66696db89eeed8fe41f4aed5d66b690d4f87469939f9b1dea2ac2b9101f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\2.exe
Filesize
1.6MB

MD5
228a69dc15032fd0fb7100ff8561185e

SHA1
f8dbc89fed8078da7f306cb78b92ce04a0bdeb00

SHA256
920bec9d500f6446b84399ab4c84858d0f0d7d1abb2e0377399ebbc4bafad709

SHA512
373621c4743fa72571b3c8375aa6f7852303a821558b016b002d2af07154787d978f66696db89eeed8fe41f4aed5d66b690d4f87469939f9b1dea2ac2b9101f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\dcfb00f9-5ae7-4197-ba59-e48107e40d35\GunaDotNetRT.dll
Filesize
136KB

MD5
9af5eb006bb0bab7f226272d82c896c7

SHA1
c2a5bb42a5f08f4dc821be374b700652262308f0

SHA256
77dc05a6bda90757f66552ee3f469b09f1e00732b4edca0f542872fb591ed9db

SHA512
7badd41be4c1039302fda9bba19d374ec9446ce24b7db33b66bee4ef38180d1abcd666d2aea468e7e452aa1e1565eedfefed582bf1c2fe477a4171d99d48772a

Download Submit
memory/1352-133-0x0000000000000000-mapping.dmp

Download
memory/1352-139-0x0000000000D70000-0x0000000000D7E000-memory.dmp

Filesize
56KB

Download
memory/1352-141-0x0000000005580000-0x000000000561C000-memory.dmp

Filesize
624KB

Download
memory/3972-132-0x00007FF8CE220000-0x00007FF8CEC56000-memory.dmp

Filesize
10.2MB

Download
memory/4084-149-0x0000000000000000-mapping.dmp

Download
memory/4272-148-0x0000000000000000-mapping.dmp

Download
memory/4768-140-0x00000000006D0000-0x000000000087C000-memory.dmp

Filesize
1.7MB

Download
memory/4768-144-0x00000000050E0000-0x00000000050EA000-memory.dmp

Filesize
40KB

Download
memory/4768-143-0x0000000005240000-0x00000000052D2000-memory.dmp

Filesize
584KB

Download
memory/4768-146-0x00000000730A0000-0x0000000073129000-memory.dmp

Filesize
548KB

Download
memory/4768-147-0x0000000070BB0000-0x0000000070BE7000-memory.dmp

Filesize
220KB

Download
memory/4768-142-0x00000000057F0000-0x0000000005D94000-memory.dmp

Filesize
5.6MB

Download
memory/4768-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads