njrat | 8c6ca1c8128480b39bed5d584b13880534bc0155cf05df5ab5ebd1dc63f53207

General

Target

Q4EtLThkYlEkFvu.exe
Size

474KB
MD5

18156edcb0549e6e856811b5a57b951d
SHA1

c9c773a0157562c8fa800aad23c670486fd63fbd
SHA256

8c6ca1c8128480b39bed5d584b13880534bc0155cf05df5ab5ebd1dc63f53207
SHA512

c881d069a6403a22b02ee71dd062fdb6718f23c6c1de859d142dcd9e4c642555c3c5f72bc6b0aa1bab3ff6539a7c59e3415bca0b8f636cfcc5b9dbd5afb39775

Score

10^/10

njrat order1 persistence suricata 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
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata
Executes dropped EXE 2 IoCs

Processes:

Payload.exePayload.exe

pid process

1436 Payload.exe
4428 Payload.exe

pid	process
1436	Payload.exe
4428	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-1-5-21-2481030822-2828258191-1606198294-1000\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 3500 set thread context of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 1436 set thread context of 4428	1436	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

4716 schtasks.exe
3884 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
4716	schtasks.exe
3884	schtasks.exe

Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes:

Payload.exe

description	pid	process
Token: SeDebugPrivilege	4428	Payload.exe
Token: 33	4428	Payload.exe
Token: SeIncBasePriorityPrivilege	4428	Payload.exe
Token: 33	4428	Payload.exe
Token: SeIncBasePriorityPrivilege	4428	Payload.exe
Token: 33	4428	Payload.exe
Token: SeIncBasePriorityPrivilege	4428	Payload.exe
Token: 33	4428	Payload.exe
Token: SeIncBasePriorityPrivilege	4428	Payload.exe
Token: 33	4428	Payload.exe
Token: SeIncBasePriorityPrivilege	4428	Payload.exe
Token: 33	4428	Payload.exe
Token: SeIncBasePriorityPrivilege	4428	Payload.exe
Token: 33	4428	Payload.exe
Token: SeIncBasePriorityPrivilege	4428	Payload.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

Q4EtLThkYlEkFvu.exeQ4EtLThkYlEkFvu.exePayload.exe

description	pid	process	target process
PID 3500 wrote to memory of 4716	3500	Q4EtLThkYlEkFvu.exe	schtasks.exe
PID 3500 wrote to memory of 4716	3500	Q4EtLThkYlEkFvu.exe	schtasks.exe
PID 3500 wrote to memory of 4716	3500	Q4EtLThkYlEkFvu.exe	schtasks.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 3500 wrote to memory of 4404	3500	Q4EtLThkYlEkFvu.exe	Q4EtLThkYlEkFvu.exe
PID 4404 wrote to memory of 1436	4404	Q4EtLThkYlEkFvu.exe	Payload.exe
PID 4404 wrote to memory of 1436	4404	Q4EtLThkYlEkFvu.exe	Payload.exe
PID 4404 wrote to memory of 1436	4404	Q4EtLThkYlEkFvu.exe	Payload.exe
PID 4404 wrote to memory of 1652	4404	Q4EtLThkYlEkFvu.exe	attrib.exe
PID 4404 wrote to memory of 1652	4404	Q4EtLThkYlEkFvu.exe	attrib.exe
PID 4404 wrote to memory of 1652	4404	Q4EtLThkYlEkFvu.exe	attrib.exe
PID 1436 wrote to memory of 3884	1436	Payload.exe	schtasks.exe
PID 1436 wrote to memory of 3884	1436	Payload.exe	schtasks.exe
PID 1436 wrote to memory of 3884	1436	Payload.exe	schtasks.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe
PID 1436 wrote to memory of 4428	1436	Payload.exe	Payload.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1652 attrib.exe

pid	process
1652	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:3500

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yqbepZrEYRD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E87.tmp"
2⤵
- Creates scheduled task(s)
PID:4716

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:4404

C:\Windows\Payload.exe
"C:\Windows\Payload.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1436

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yqbepZrEYRD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp49B.tmp"
4⤵
- Creates scheduled task(s)
PID:3884

C:\Windows\Payload.exe
"C:\Windows\Payload.exe"
4⤵
- Executes dropped EXE
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
PID:4428

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\Windows\Payload.exe"
3⤵
- Drops file in Windows directory
- Views/modifies file attributes
PID:1652

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\Local\Microsoft\CLR_v4.0_32\UsageLogs\Payload.exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Q4EtLThkYlEkFvu.exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk
MD5
46562a709e5ec2dab9696cb27bd33b74

SHA1
aabc178c30e55066ce607209890032a61c0ea6f8

SHA256
fa1e5acb0728a372781bad0a82d0951ff90e12d4bbdcd2ddb42c444388b64d21

SHA512
309d3974ae4a84e763cff4000f7c52b84172ebfca7b1e7ce4eb077c54264a4cd3462d4e1d33a595b25bb64a10697f43dc56230caf30836b840a773e1490b69a3

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk
MD5
b4fdc94f9046fd37a2e3eb86a3a90b2e

SHA1
c66dcf4da9990d7c5e05e746014959b2d6cafdbf

SHA256
7932091b665509fce9c35ab4b372ea30cb4a13dd1b8011b586cb840692988d37

SHA512
64d2608bcb9242fcd47fa1c2fb1517356aeed5096ad3d15e72e1ca976fa34346524ddaab18c78548074b51a7ecae642e3953d83d8692ac00ef1c777509603cef

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/1436-142-0x0000000004B70000-0x000000000506E000-memory.dmp

Filesize
5.0MB

Download
memory/1436-132-0x0000000000000000-mapping.dmp

Download
memory/1652-136-0x0000000000000000-mapping.dmp

Download
memory/3500-122-0x0000000008C80000-0x0000000008C81000-memory.dmp

Filesize
4KB

Download
memory/3500-119-0x00000000056D0000-0x00000000056D1000-memory.dmp

Filesize
4KB

Download
memory/3500-117-0x0000000005CE0000-0x0000000005CE1000-memory.dmp

Filesize
4KB

Download
memory/3500-118-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download
memory/3500-123-0x0000000008D20000-0x0000000008D4C000-memory.dmp

Filesize
176KB

Download
memory/3500-115-0x0000000000E00000-0x0000000000E01000-memory.dmp

Filesize
4KB

Download
memory/3500-121-0x00000000057E0000-0x0000000005CDE000-memory.dmp

Filesize
5.0MB

Download
memory/3500-120-0x00000000057C0000-0x00000000057C7000-memory.dmp

Filesize
28KB

Download
memory/3884-145-0x0000000000000000-mapping.dmp

Download
memory/4404-126-0x000000000040836E-mapping.dmp

Download
memory/4404-125-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4428-147-0x000000000040836E-mapping.dmp

Download
memory/4428-156-0x0000000006140000-0x0000000006141000-memory.dmp

Filesize
4KB

Download
memory/4428-159-0x00000000063C0000-0x00000000063C1000-memory.dmp

Filesize
4KB

Download
memory/4716-124-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads