njrat | 3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688

General

Target

3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
Size

56KB
MD5

a18ec598943bf1d2385feb79528082e8
SHA1

39069a6598657ae0dc9ede722cecd629a8c9d315
SHA256

3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688
SHA512

dd1e9c0562a56c58b39501bb07c66450692ad0387fb4b8b580c74371dc83bc5ed7815c6cb7fc72200ade593b724a4eef9ede4be0d7be0fad40db8736c1bf8ecd

Score

10^/10

njrat zombie evasion persistence trojan

Malware Config

Extracted

Family

njrat

Botnet

Zombie

Mutex

2b0b46ffac65ee5caab788b335debf15

Attributes

reg_key
2b0b46ffac65ee5caab788b335debf15

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

Windows.exeWindows.exe

pid process

3212 Windows.exe
2084 Windows.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
3212	Windows.exe
2084	Windows.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:

3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe

Drops startup file 2 IoCs

Processes:

Windows.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2b0b46ffac65ee5caab788b335debf15.exe	Windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2b0b46ffac65ee5caab788b335debf15.exe	Windows.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exeWindows.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\CqPZXrToFT = "C:\\Users\\Admin\\AppData\\Roaming\\rNJNqDwAZW\\mWCAWkDdCt.exe"	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2b0b46ffac65ee5caab788b335debf15 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows.exe\" .."	Windows.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\2b0b46ffac65ee5caab788b335debf15 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows.exe\" .."	Windows.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exeWindows.exe

description	pid	process	target process
PID 856 set thread context of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 3212 set thread context of 2084	3212	Windows.exe	Windows.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 31 IoCs

Processes:

Windows.exe

description	pid	process
Token: SeDebugPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe
Token: 33	2084	Windows.exe
Token: SeIncBasePriorityPrivilege	2084	Windows.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exeWindows.exeWindows.exe

description	pid	process	target process
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 856 wrote to memory of 2400	856	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
PID 2400 wrote to memory of 3212	2400	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	Windows.exe
PID 2400 wrote to memory of 3212	2400	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	Windows.exe
PID 2400 wrote to memory of 3212	2400	3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 3212 wrote to memory of 2084	3212	Windows.exe	Windows.exe
PID 2084 wrote to memory of 1056	2084	Windows.exe	netsh.exe
PID 2084 wrote to memory of 1056	2084	Windows.exe	netsh.exe
PID 2084 wrote to memory of 1056	2084	Windows.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
"C:\Users\Admin\AppData\Local\Temp\3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:856

C:\Users\Admin\AppData\Local\Temp\3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe
"C:\Users\Admin\AppData\Local\Temp\3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2400

C:\Users\Admin\AppData\Local\Temp\Windows.exe
"C:\Users\Admin\AppData\Local\Temp\Windows.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3212

C:\Users\Admin\AppData\Local\Temp\Windows.exe
"C:\Users\Admin\AppData\Local\Temp\Windows.exe"
4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2084

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Windows.exe" "Windows.exe" ENABLE
5⤵
PID:1056

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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\Microsoft\CLR_v4.0_32\UsageLogs\3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688.exe.log
Filesize
507B

MD5
76ffb2f33cb32ade8fc862a67599e9d8

SHA1
920cc4ab75b36d2f9f6e979b74db568973c49130

SHA256
f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

SHA512
f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Windows.exe
Filesize
56KB

MD5
a18ec598943bf1d2385feb79528082e8

SHA1
39069a6598657ae0dc9ede722cecd629a8c9d315

SHA256
3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688

SHA512
dd1e9c0562a56c58b39501bb07c66450692ad0387fb4b8b580c74371dc83bc5ed7815c6cb7fc72200ade593b724a4eef9ede4be0d7be0fad40db8736c1bf8ecd

Download Submit
C:\Users\Admin\AppData\Local\Temp\Windows.exe
Filesize
56KB

MD5
a18ec598943bf1d2385feb79528082e8

SHA1
39069a6598657ae0dc9ede722cecd629a8c9d315

SHA256
3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688

SHA512
dd1e9c0562a56c58b39501bb07c66450692ad0387fb4b8b580c74371dc83bc5ed7815c6cb7fc72200ade593b724a4eef9ede4be0d7be0fad40db8736c1bf8ecd

Download Submit
C:\Users\Admin\AppData\Local\Temp\Windows.exe
Filesize
56KB

MD5
a18ec598943bf1d2385feb79528082e8

SHA1
39069a6598657ae0dc9ede722cecd629a8c9d315

SHA256
3fea4293884a17a3f087ad02edb9cf23762085bd39b189b5875bf3f00f3cd688

SHA512
dd1e9c0562a56c58b39501bb07c66450692ad0387fb4b8b580c74371dc83bc5ed7815c6cb7fc72200ade593b724a4eef9ede4be0d7be0fad40db8736c1bf8ecd

Download Submit
memory/856-132-0x0000000004EE0000-0x0000000004F72000-memory.dmp

Filesize
584KB

Download
memory/856-133-0x0000000005020000-0x00000000050BC000-memory.dmp

Filesize
624KB

Download
memory/856-131-0x00000000053F0000-0x0000000005994000-memory.dmp

Filesize
5.6MB

Download
memory/856-130-0x0000000000500000-0x0000000000514000-memory.dmp

Filesize
80KB

Download
memory/1056-143-0x0000000000000000-mapping.dmp

Download
memory/2084-140-0x0000000000000000-mapping.dmp

Download
memory/2084-144-0x0000000005910000-0x000000000591A000-memory.dmp

Filesize
40KB

Download
memory/2400-134-0x0000000000000000-mapping.dmp

Download
memory/2400-135-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3212-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads