Malware Analysis Report

2024-08-06 11:33

Sample ID 240612-jplfjavekb
Target sus.exe
SHA256 74bd2c08f9f127d8dbc5bf408568cdaf8f32b9afc9823abde3b6123b0da25c98
Tags
niga quasar spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

74bd2c08f9f127d8dbc5bf408568cdaf8f32b9afc9823abde3b6123b0da25c98

Threat Level: Known bad

The file sus.exe was found to be: Known bad.

Malicious Activity Summary

niga quasar spyware trojan

Quasar family

Quasar payload

Quasar RAT

Executes dropped EXE

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-12 07:50

Signatures

Quasar family

quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 07:50

Reported

2024-06-12 07:53

Platform

win7-20240221-en

Max time kernel

125s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\sus.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\system32\kreiasad\asdkwk.exe C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
File opened for modification C:\Windows\system32\kreiasad\asdkwk.exe C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
File opened for modification C:\Windows\system32\kreiasad C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
File opened for modification C:\Windows\system32\kreiasad\asdkwk.exe C:\Windows\system32\kreiasad\asdkwk.exe N/A
File opened for modification C:\Windows\system32\kreiasad C:\Windows\system32\kreiasad\asdkwk.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2168 wrote to memory of 1880 N/A C:\Users\Admin\AppData\Local\Temp\sus.exe C:\Windows\system32\kreiasad\asdkwk.exe
PID 2168 wrote to memory of 1880 N/A C:\Users\Admin\AppData\Local\Temp\sus.exe C:\Windows\system32\kreiasad\asdkwk.exe
PID 2168 wrote to memory of 1880 N/A C:\Users\Admin\AppData\Local\Temp\sus.exe C:\Windows\system32\kreiasad\asdkwk.exe

Processes

C:\Users\Admin\AppData\Local\Temp\sus.exe

"C:\Users\Admin\AppData\Local\Temp\sus.exe"

C:\Windows\system32\kreiasad\asdkwk.exe

"C:\Windows\system32\kreiasad\asdkwk.exe"

Network

Country Destination Domain Proto
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp

Files

memory/2168-0-0x000007FEF5803000-0x000007FEF5804000-memory.dmp

memory/2168-1-0x00000000002C0000-0x00000000005E4000-memory.dmp

memory/2168-2-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

C:\Windows\System32\kreiasad\asdkwk.exe

MD5 40b9b1af42e85013341d3994eb9857ac
SHA1 4cbaf05241707575b8bba65491e4771af3579b22
SHA256 74bd2c08f9f127d8dbc5bf408568cdaf8f32b9afc9823abde3b6123b0da25c98
SHA512 67480043dc18942b3895ca0914bb518fc865fa9a6669e1fba87b213c9c1b2939824c710b38a9f5a5e088c8b889f8022a4d467356e9c32ae231ab89cb36fa6c05

memory/2168-8-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

memory/1880-10-0x00000000001D0000-0x00000000004F4000-memory.dmp

memory/1880-9-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

memory/1880-11-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

memory/1880-12-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 07:50

Reported

2024-06-12 07:53

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\sus.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\system32\kreiasad\asdkwk.exe C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
File opened for modification C:\Windows\system32\kreiasad\asdkwk.exe C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
File opened for modification C:\Windows\system32\kreiasad C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
File opened for modification C:\Windows\system32\kreiasad\asdkwk.exe C:\Windows\system32\kreiasad\asdkwk.exe N/A
File opened for modification C:\Windows\system32\kreiasad C:\Windows\system32\kreiasad\asdkwk.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\sus.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\system32\kreiasad\asdkwk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1092 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\sus.exe C:\Windows\system32\kreiasad\asdkwk.exe
PID 1092 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\sus.exe C:\Windows\system32\kreiasad\asdkwk.exe

Processes

C:\Users\Admin\AppData\Local\Temp\sus.exe

"C:\Users\Admin\AppData\Local\Temp\sus.exe"

C:\Windows\system32\kreiasad\asdkwk.exe

"C:\Windows\system32\kreiasad\asdkwk.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
N/A 192.168.0.106:4782 tcp
US 8.8.8.8:53 udp

Files

memory/1092-0-0x00007FFC726B3000-0x00007FFC726B5000-memory.dmp

memory/1092-1-0x0000000000990000-0x0000000000CB4000-memory.dmp

memory/1092-2-0x00007FFC726B0000-0x00007FFC73171000-memory.dmp

C:\Windows\System32\kreiasad\asdkwk.exe

MD5 40b9b1af42e85013341d3994eb9857ac
SHA1 4cbaf05241707575b8bba65491e4771af3579b22
SHA256 74bd2c08f9f127d8dbc5bf408568cdaf8f32b9afc9823abde3b6123b0da25c98
SHA512 67480043dc18942b3895ca0914bb518fc865fa9a6669e1fba87b213c9c1b2939824c710b38a9f5a5e088c8b889f8022a4d467356e9c32ae231ab89cb36fa6c05

memory/764-10-0x00007FFC726B0000-0x00007FFC73171000-memory.dmp

memory/1092-9-0x00007FFC726B0000-0x00007FFC73171000-memory.dmp

memory/764-11-0x00007FFC726B0000-0x00007FFC73171000-memory.dmp

memory/764-12-0x000000001C310000-0x000000001C360000-memory.dmp

memory/764-13-0x000000001C420000-0x000000001C4D2000-memory.dmp

memory/764-14-0x00007FFC726B0000-0x00007FFC73171000-memory.dmp