njrat | b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

General

Target

qkZKfZTC9ZEN8z2.exe
Size

383KB
MD5

170f90d6d9b128a8af103c8003539a54
SHA1

35a2f8791679b7b17fbb2758a4de717bf1314039
SHA256

b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f
SHA512

512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Score

10^/10

njrat $$$$$$fucking evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

$$$$$$Fucking

C2

whmfix009.cf:5409

Mutex

f6a7c83d337d940f548e06019597f0a2

Attributes

reg_key
f6a7c83d337d940f548e06019597f0a2
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 2 IoCs

Processes:

cAQzTs.execAQzTs.exe

pid process

2032 cAQzTs.exe
872 cAQzTs.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
2032	cAQzTs.exe
872	cAQzTs.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	qkZKfZTC9ZEN8z2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cAQzTs.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cAQzTs.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	qkZKfZTC9ZEN8z2.exe

Drops startup file 2 IoCs

Processes:

cAQzTs.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f6a7c83d337d940f548e06019597f0a2.exe	cAQzTs.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f6a7c83d337d940f548e06019597f0a2.exe	cAQzTs.exe

Loads dropped DLL 1 IoCs

Processes:

qkZKfZTC9ZEN8z2.exe

pid process

1940 qkZKfZTC9ZEN8z2.exe

pid	process
1940	qkZKfZTC9ZEN8z2.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cAQzTs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\f6a7c83d337d940f548e06019597f0a2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\cAQzTs.exe\" .."	cAQzTs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\f6a7c83d337d940f548e06019597f0a2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\cAQzTs.exe\" .."	cAQzTs.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	qkZKfZTC9ZEN8z2.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	qkZKfZTC9ZEN8z2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	cAQzTs.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	cAQzTs.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

description	pid	process	target process
PID 848 set thread context of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 2032 set thread context of 872	2032	cAQzTs.exe	cAQzTs.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

1616 schtasks.exe
1892 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

pid process

848 qkZKfZTC9ZEN8z2.exe
2032 cAQzTs.exe

pid	process
1616	schtasks.exe
1892	schtasks.exe

pid	process
848	qkZKfZTC9ZEN8z2.exe
2032	cAQzTs.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.execAQzTs.exe

description	pid	process
Token: SeDebugPrivilege	848	qkZKfZTC9ZEN8z2.exe
Token: SeDebugPrivilege	2032	cAQzTs.exe
Token: SeDebugPrivilege	872	cAQzTs.exe
Token: 33	872	cAQzTs.exe
Token: SeIncBasePriorityPrivilege	872	cAQzTs.exe
Token: 33	872	cAQzTs.exe
Token: SeIncBasePriorityPrivilege	872	cAQzTs.exe
Token: 33	872	cAQzTs.exe
Token: SeIncBasePriorityPrivilege	872	cAQzTs.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

qkZKfZTC9ZEN8z2.exeqkZKfZTC9ZEN8z2.execAQzTs.execAQzTs.exe

description	pid	process	target process
PID 848 wrote to memory of 1616	848	qkZKfZTC9ZEN8z2.exe	schtasks.exe
PID 848 wrote to memory of 1616	848	qkZKfZTC9ZEN8z2.exe	schtasks.exe
PID 848 wrote to memory of 1616	848	qkZKfZTC9ZEN8z2.exe	schtasks.exe
PID 848 wrote to memory of 1616	848	qkZKfZTC9ZEN8z2.exe	schtasks.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 848 wrote to memory of 1940	848	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 1940 wrote to memory of 2032	1940	qkZKfZTC9ZEN8z2.exe	cAQzTs.exe
PID 1940 wrote to memory of 2032	1940	qkZKfZTC9ZEN8z2.exe	cAQzTs.exe
PID 1940 wrote to memory of 2032	1940	qkZKfZTC9ZEN8z2.exe	cAQzTs.exe
PID 1940 wrote to memory of 2032	1940	qkZKfZTC9ZEN8z2.exe	cAQzTs.exe
PID 2032 wrote to memory of 1892	2032	cAQzTs.exe	schtasks.exe
PID 2032 wrote to memory of 1892	2032	cAQzTs.exe	schtasks.exe
PID 2032 wrote to memory of 1892	2032	cAQzTs.exe	schtasks.exe
PID 2032 wrote to memory of 1892	2032	cAQzTs.exe	schtasks.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 2032 wrote to memory of 872	2032	cAQzTs.exe	cAQzTs.exe
PID 872 wrote to memory of 1976	872	cAQzTs.exe	netsh.exe
PID 872 wrote to memory of 1976	872	cAQzTs.exe	netsh.exe
PID 872 wrote to memory of 1976	872	cAQzTs.exe	netsh.exe
PID 872 wrote to memory of 1976	872	cAQzTs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\qkZKfZTC9ZEN8z2.exe
"C:\Users\Admin\AppData\Local\Temp\qkZKfZTC9ZEN8z2.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bEXOsg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEDF7.tmp"
2⤵
- Creates scheduled task(s)
PID:1616

C:\Users\Admin\AppData\Local\Temp\qkZKfZTC9ZEN8z2.exe
"{path}"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1940

C:\Users\Admin\AppData\Roaming\cAQzTs.exe
"C:\Users\Admin\AppData\Roaming\cAQzTs.exe"
3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bEXOsg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6BF.tmp"
4⤵
- Creates scheduled task(s)
PID:1892

C:\Users\Admin\AppData\Roaming\cAQzTs.exe
"{path}"
4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:872

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\cAQzTs.exe" "cAQzTs.exe" ENABLE
5⤵
PID:1976

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD6BF.tmp
MD5
43cf72f31d2f3ee2c8e36207f821a4fb

SHA1
6acb1158e884daab04b8524094721addb90f08f9

SHA256
c3d4cac26e6531bfe5db478ce3ba9eaa09ad9dfe180405a9fc6d114efd14b809

SHA512
5b46a70739fdb50dd0da2a69f0c85127d61d5134f90d49f6c1844f61937da263377cf085d5167ecb773e0d3bbb63e3a6e98815a4f9e3c58d0b44ce2644155279

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEDF7.tmp
MD5
43cf72f31d2f3ee2c8e36207f821a4fb

SHA1
6acb1158e884daab04b8524094721addb90f08f9

SHA256
c3d4cac26e6531bfe5db478ce3ba9eaa09ad9dfe180405a9fc6d114efd14b809

SHA512
5b46a70739fdb50dd0da2a69f0c85127d61d5134f90d49f6c1844f61937da263377cf085d5167ecb773e0d3bbb63e3a6e98815a4f9e3c58d0b44ce2644155279

Download Submit
C:\Users\Admin\AppData\Roaming\cAQzTs.exe
MD5
170f90d6d9b128a8af103c8003539a54

SHA1
35a2f8791679b7b17fbb2758a4de717bf1314039

SHA256
b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

SHA512
512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Download Submit
C:\Users\Admin\AppData\Roaming\cAQzTs.exe
MD5
170f90d6d9b128a8af103c8003539a54

SHA1
35a2f8791679b7b17fbb2758a4de717bf1314039

SHA256
b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

SHA512
512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Download Submit
C:\Users\Admin\AppData\Roaming\cAQzTs.exe
MD5
170f90d6d9b128a8af103c8003539a54

SHA1
35a2f8791679b7b17fbb2758a4de717bf1314039

SHA256
b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

SHA512
512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Download Submit
\Users\Admin\AppData\Roaming\cAQzTs.exe
MD5
170f90d6d9b128a8af103c8003539a54

SHA1
35a2f8791679b7b17fbb2758a4de717bf1314039

SHA256
b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

SHA512
512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Download Submit
memory/848-6-0x0000000001030000-0x0000000001075000-memory.dmp

Filesize
276KB

Download
memory/848-2-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/848-5-0x00000000002A0000-0x00000000002AE000-memory.dmp

Filesize
56KB

Download
memory/848-3-0x0000000001150000-0x0000000001151000-memory.dmp

Filesize
4KB

Download
memory/872-32-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/872-28-0x000000000040748E-mapping.dmp

Download
memory/1616-7-0x0000000000000000-mapping.dmp

Download
memory/1892-25-0x0000000000000000-mapping.dmp

Download
memory/1940-13-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/1940-11-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1940-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1940-10-0x000000000040748E-mapping.dmp

Download
memory/1940-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1976-35-0x0000000000000000-mapping.dmp

Download
memory/2032-20-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/2032-21-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

Filesize
4KB

Download
memory/2032-17-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads