njrat | 8c6ca1c8128480b39bed5d584b13880534bc0155cf05df5ab5ebd1dc63f53207

General

Target

Q4EtLThkYlEkFvu.exe
Size

474KB
MD5

18156edcb0549e6e856811b5a57b951d
SHA1

c9c773a0157562c8fa800aad23c670486fd63fbd
SHA256

8c6ca1c8128480b39bed5d584b13880534bc0155cf05df5ab5ebd1dc63f53207
SHA512

c881d069a6403a22b02ee71dd062fdb6718f23c6c1de859d142dcd9e4c642555c3c5f72bc6b0aa1bab3ff6539a7c59e3415bca0b8f636cfcc5b9dbd5afb39775

Score

10^/10

njrat order1 persistence trojan

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

order1

C2

45.137.22.146:5553

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

Signatures

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

Processes:

Payload.exePayload.exe

pid process

2016 Payload.exe
1196 Payload.exe

pid	process
2016	Payload.exe
1196	Payload.exe

Drops startup file 2 IoCs

Processes:

Q4EtLThkYlEkFvu.exePayload.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	Q4EtLThkYlEkFvu.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	Payload.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Q4EtLThkYlEkFvu.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Windows\\Payload.exe"	Q4EtLThkYlEkFvu.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Q4EtLThkYlEkFvu.exePayload.exe

description	pid	process	target process
PID 1588 set thread context of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 2016 set thread context of 1196	2016	Payload.exe	Payload.exe

Drops file in Windows directory 2 IoCs

Processes:

Q4EtLThkYlEkFvu.exeattrib.exe

description ioc process

File created C:\Windows\Payload.exe Q4EtLThkYlEkFvu.exe
File opened for modification C:\Windows\Payload.exe attrib.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1808 schtasks.exe
912 schtasks.exe

description	ioc	process
File created	C:\Windows\Payload.exe	Q4EtLThkYlEkFvu.exe
File opened for modification	C:\Windows\Payload.exe	attrib.exe

pid	process
1808	schtasks.exe
912	schtasks.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

Payload.exe

description	pid	process
Token: SeDebugPrivilege	1196	Payload.exe
Token: 33	1196	Payload.exe
Token: SeIncBasePriorityPrivilege	1196	Payload.exe
Token: 33	1196	Payload.exe
Token: SeIncBasePriorityPrivilege	1196	Payload.exe
Token: 33	1196	Payload.exe
Token: SeIncBasePriorityPrivilege	1196	Payload.exe
Token: 33	1196	Payload.exe
Token: SeIncBasePriorityPrivilege	1196	Payload.exe
Token: 33	1196	Payload.exe
Token: SeIncBasePriorityPrivilege	1196	Payload.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

Q4EtLThkYlEkFvu.exeQ4EtLThkYlEkFvu.exePayload.exe

description	pid	process	target process
PID 1588 wrote to memory of 1808	1588	Q4EtLThkYlEkFvu.exe	schtasks.exe
PID 1588 wrote to memory of 1808	1588	Q4EtLThkYlEkFvu.exe	schtasks.exe
PID 1588 wrote to memory of 1808	1588	Q4EtLThkYlEkFvu.exe	schtasks.exe
PID 1588 wrote to memory of 1808	1588	Q4EtLThkYlEkFvu.exe	schtasks.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1588 wrote to memory of 640	1588	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 640 wrote to memory of 2016	640	Q4EtLThkYlEkFvu.exe	Payload.exe
PID 640 wrote to memory of 2016	640	Q4EtLThkYlEkFvu.exe	Payload.exe
PID 640 wrote to memory of 2016	640	Q4EtLThkYlEkFvu.exe	Payload.exe
PID 640 wrote to memory of 2016	640	Q4EtLThkYlEkFvu.exe	Payload.exe
PID 640 wrote to memory of 1680	640	Q4EtLThkYlEkFvu.exe	attrib.exe
PID 640 wrote to memory of 1680	640	Q4EtLThkYlEkFvu.exe	attrib.exe
PID 640 wrote to memory of 1680	640	Q4EtLThkYlEkFvu.exe	attrib.exe
PID 640 wrote to memory of 1680	640	Q4EtLThkYlEkFvu.exe	attrib.exe
PID 2016 wrote to memory of 912	2016	Payload.exe	schtasks.exe
PID 2016 wrote to memory of 912	2016	Payload.exe	schtasks.exe
PID 2016 wrote to memory of 912	2016	Payload.exe	schtasks.exe
PID 2016 wrote to memory of 912	2016	Payload.exe	schtasks.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe
PID 2016 wrote to memory of 1196	2016	Payload.exe	Payload.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1680 attrib.exe

pid	process
1680	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Q4EtLThkYlEkFvu.exe
"C:\Users\Admin\AppData\Local\Temp\Q4EtLThkYlEkFvu.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1588

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yqbepZrEYRD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCFCD.tmp"
2⤵
- Creates scheduled task(s)
PID:1808

C:\Users\Admin\AppData\Local\Temp\Q4EtLThkYlEkFvu.exe
"C:\Users\Admin\AppData\Local\Temp\Q4EtLThkYlEkFvu.exe"
2⤵
- Drops startup file
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\Payload.exe
"C:\Windows\Payload.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yqbepZrEYRD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp980B.tmp"
4⤵
- Creates scheduled task(s)
PID:912

C:\Windows\Payload.exe
"C:\Windows\Payload.exe"
4⤵
- Executes dropped EXE
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
PID:1196

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\Windows\Payload.exe"
3⤵
- Drops file in Windows directory
- Views/modifies file attributes
PID:1680

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Hidden Files and Directories

1

T1158

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk
MD5
e8f49d20662174923b6e40af8ef7bce3

SHA1
ef2230d6b9376a5da92df975b1e51ba8d0d999c5

SHA256
8d3a021ccfcf82e2d7f51df69709ffbabdb9b598507e8a62276d2f35d4c3dcfe

SHA512
c7d61d3de5ed17747d43c0e24a9206fe655e8695b382ffbe3e97f9d20d07cbade749a6e63c314edf272c059a07afbd57cfae12a7c7a8080073514de0648da1d6

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk
MD5
194bd8676b7e2dfc56bbb53e57bbf169

SHA1
840962b12c2a0518178a81ac3f75837d20d764af

SHA256
7b9e08396ce946735eb3a8f04d85cdce0813c0f5091c2032267f455ee473cd60

SHA512
e486f7c901e7dafadb9eee9298af158c9b80eb690c874be288aa439ed96743ed5be317e528972f72ea8493c81a81e29420749cca53bf1983f664cf24d1070fb7

Download Submit
C:\Windows\Payload.exe
MD5
18156edcb0549e6e856811b5a57b951d

SHA1
c9c773a0157562c8fa800aad23c670486fd63fbd

SHA256
8c6ca1c8128480b39bed5d584b13880534bc0155cf05df5ab5ebd1dc63f53207

SHA512
c881d069a6403a22b02ee71dd062fdb6718f23c6c1de859d142dcd9e4c642555c3c5f72bc6b0aa1bab3ff6539a7c59e3415bca0b8f636cfcc5b9dbd5afb39775

Download Submit
C:\Windows\Payload.exe
MD5
18156edcb0549e6e856811b5a57b951d

SHA1
c9c773a0157562c8fa800aad23c670486fd63fbd

SHA256
8c6ca1c8128480b39bed5d584b13880534bc0155cf05df5ab5ebd1dc63f53207

SHA512
c881d069a6403a22b02ee71dd062fdb6718f23c6c1de859d142dcd9e4c642555c3c5f72bc6b0aa1bab3ff6539a7c59e3415bca0b8f636cfcc5b9dbd5afb39775

Download Submit
C:\Windows\Payload.exe
MD5
18156edcb0549e6e856811b5a57b951d

SHA1
c9c773a0157562c8fa800aad23c670486fd63fbd

SHA256
8c6ca1c8128480b39bed5d584b13880534bc0155cf05df5ab5ebd1dc63f53207

SHA512
c881d069a6403a22b02ee71dd062fdb6718f23c6c1de859d142dcd9e4c642555c3c5f72bc6b0aa1bab3ff6539a7c59e3415bca0b8f636cfcc5b9dbd5afb39775

Download Submit
memory/640-69-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

Filesize
8KB

Download
memory/640-61-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/640-63-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/640-64-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/640-65-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/640-66-0x000000000040836E-mapping.dmp

Download
memory/640-67-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/640-62-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/912-79-0x0000000000000000-mapping.dmp

Download
memory/1196-85-0x000000000040836E-mapping.dmp

Download
memory/1196-92-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

Download
memory/1588-55-0x00000000011E0000-0x00000000011E1000-memory.dmp

Filesize
4KB

Download
memory/1588-59-0x0000000000D20000-0x0000000000D4C000-memory.dmp

Filesize
176KB

Download
memory/1588-58-0x0000000000390000-0x0000000000397000-memory.dmp

Filesize
28KB

Download
memory/1588-57-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

Filesize
4KB

Download
memory/1680-74-0x0000000000000000-mapping.dmp

Download
memory/1808-60-0x0000000000000000-mapping.dmp

Download
memory/2016-70-0x0000000000000000-mapping.dmp

Download
memory/2016-73-0x0000000001080000-0x0000000001081000-memory.dmp

Filesize
4KB

Download
memory/2016-77-0x0000000000DA0000-0x0000000000DA1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads