njrat | 1e429092e09d2f72fbe28209ea1bd98d65fff4e9a7bb6e5cd7986196b30a1f98

General

Target

Server.exe
Size

43KB
MD5

d263ae994c7828269ff7d3a5ec76a11b
SHA1

4c9dcda66fd3004be1b8e1eec4f397ddea9962d5
SHA256

1e429092e09d2f72fbe28209ea1bd98d65fff4e9a7bb6e5cd7986196b30a1f98
SHA512

93051cab42a41be27724206c321bff81a5389e6d4bb7038f2d7fd1bce6dd14ac9c3c1bedf48b0e30c88e0e8efaff557a26e848ef24e408799ab7738be3ebdc53
SSDEEP

384:lZy46NUst+3gUy6jjHK6qEsjtJEzQIij+ZsNO3PlpJKkkjh/TzF7pWna/greT0pe:vAwQh6/H1ujGuXQ/oj3+L

Score

10^/10

njrat hacked persistence spyware stealer trojan upx

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

19.ip.gl.ply.gg:54921

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

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:

Server.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation Server.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	Server.exe

Drops startup file 2 IoCs

Processes:

windlogon.exe

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

Executes dropped EXE 3 IoCs

Processes:

windlogon.exeServer.exeServer.exe

pid process

4808 windlogon.exe
4108 Server.exe
2624 Server.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
4808	windlogon.exe
4108	Server.exe
2624	Server.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1212-32-0x0000000000400000-0x0000000000472000-memory.dmp	upx
behavioral2/memory/1212-34-0x0000000000400000-0x0000000000472000-memory.dmp	upx
behavioral2/memory/1212-35-0x0000000000400000-0x0000000000472000-memory.dmp	upx

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

windlogon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windlogon.exe\" .."	windlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windlogon.exe\" .."	windlogon.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

windlogon.exe

description pid process target process

PID 4808 set thread context of 1212 4808 windlogon.exe vbc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

4732 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

Server.exewindlogon.exe

pid process

388 Server.exe
4808 windlogon.exe

description	pid	process	target process
PID 4808 set thread context of 1212	4808	windlogon.exe	vbc.exe

pid	process
4732	schtasks.exe

pid	process
388	Server.exe
4808	windlogon.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

Processes:

windlogon.exevbc.exe

description	pid	process
Token: SeDebugPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: SeDebugPrivilege	1212	vbc.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe
Token: 33	4808	windlogon.exe
Token: SeIncBasePriorityPrivilege	4808	windlogon.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Server.exewindlogon.exe

description	pid	process	target process
PID 388 wrote to memory of 4808	388	Server.exe	windlogon.exe
PID 388 wrote to memory of 4808	388	Server.exe	windlogon.exe
PID 388 wrote to memory of 4808	388	Server.exe	windlogon.exe
PID 4808 wrote to memory of 4732	4808	windlogon.exe	schtasks.exe
PID 4808 wrote to memory of 4732	4808	windlogon.exe	schtasks.exe
PID 4808 wrote to memory of 4732	4808	windlogon.exe	schtasks.exe
PID 4808 wrote to memory of 1212	4808	windlogon.exe	vbc.exe
PID 4808 wrote to memory of 1212	4808	windlogon.exe	vbc.exe
PID 4808 wrote to memory of 1212	4808	windlogon.exe	vbc.exe
PID 4808 wrote to memory of 1212	4808	windlogon.exe	vbc.exe
PID 4808 wrote to memory of 1212	4808	windlogon.exe	vbc.exe
PID 4808 wrote to memory of 1212	4808	windlogon.exe	vbc.exe
PID 4808 wrote to memory of 1212	4808	windlogon.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:388

C:\Users\Admin\AppData\Local\Temp\windlogon.exe
"C:\Users\Admin\AppData\Local\Temp\windlogon.exe"
2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4808

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
3⤵
- Creates scheduled task(s)
PID:4732

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe" -f "C:\Users\Admin\AppData\Local\Temp\4381014"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1212

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:4108

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:2624

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scripting

1

T1064

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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\4381014
Filesize
96B

MD5
4f0f313d090a031e7bfffba76d78ecab

SHA1
0d577bc0155b493820fb9fd842e3dde629b90459

SHA256
a7546c5d43a26481aae0052942b9a7cdcfa3a5a8452c535fcbe0c62cd1df005e

SHA512
51824c60159f4ed3023af2a00dacb7889dad1efeae30cdd515bf16b456c610e0b83d4d326edc75b2eb925d510b36180e147b5bb54ccd2f102fe449676d223693

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
86KB

MD5
ba98b16195f42ec57a11625d07069b32

SHA1
5ceb0074aea25863a9a1ba07cb622b244852b700

SHA256
b33b872c1b4eb86346df012c19d0383832f8b2601e4ea221f6a439df423fc277

SHA512
aab588176794399d021357736a31012bfa5f0e52ffdd437b02d590261a76032caaa29ac32fbb3919b835b54a230cc2e9d1951fa22d4b320ca6d38279b1399aef

Download Submit
C:\Users\Admin\AppData\Local\Temp\windlogon.exe
Filesize
43KB

MD5
d263ae994c7828269ff7d3a5ec76a11b

SHA1
4c9dcda66fd3004be1b8e1eec4f397ddea9962d5

SHA256
1e429092e09d2f72fbe28209ea1bd98d65fff4e9a7bb6e5cd7986196b30a1f98

SHA512
93051cab42a41be27724206c321bff81a5389e6d4bb7038f2d7fd1bce6dd14ac9c3c1bedf48b0e30c88e0e8efaff557a26e848ef24e408799ab7738be3ebdc53

Download Submit
memory/388-3-0x0000000005990000-0x0000000005F34000-memory.dmp

Filesize
5.6MB

Download
memory/388-5-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/388-4-0x0000000005490000-0x0000000005522000-memory.dmp

Filesize
584KB

Download
memory/388-15-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/388-2-0x0000000005050000-0x00000000050EC000-memory.dmp

Filesize
624KB

Download
memory/388-0-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/388-1-0x00000000006A0000-0x00000000006B2000-memory.dmp

Filesize
72KB

Download
memory/1212-35-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1212-34-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1212-32-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4108-29-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/4108-27-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/4808-24-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/4808-23-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/4808-22-0x00000000067B0000-0x00000000067C8000-memory.dmp

Filesize
96KB

Download
memory/4808-31-0x00000000011B0000-0x00000000011F6000-memory.dmp

Filesize
280KB

Download
memory/4808-21-0x00000000059D0000-0x0000000005A36000-memory.dmp

Filesize
408KB

Download
memory/4808-33-0x0000000001260000-0x000000000126A000-memory.dmp

Filesize
40KB

Download
memory/4808-20-0x00000000057E0000-0x00000000057EA000-memory.dmp

Filesize
40KB

Download
memory/4808-17-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/4808-16-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads