quasar | 9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a

General

Target

9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe
Size

454KB
MD5

f227f29cfb2aa5df483628e9a13ba879
SHA1

bd23442d6ae60d3e3df7dfd6693245f97cd79533
SHA256

9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a
SHA512

930599ce5fa347921885bf4ae2e9c3c621d23f43883e7790b0b380d71a6576ffc74d61f6b6dc02ad7a2ee16f8a7d4b85b436c29068f9f07873a96e69112415e2

Score

10^/10

quasar zenoxpu spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.0

Botnet

ZenoXpu

C2

185.153.222.198:7845

Mutex

HIFbOBRX8hIfqiy4wu

Attributes

encryption_key
DQXvqTzM5uyODUsZK174
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

Quasar Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1820-66-0x0000000000400000-0x000000000044E000-memory.dmp	family_quasar
behavioral1/memory/1820-68-0x0000000000400000-0x000000000044E000-memory.dmp	family_quasar
behavioral1/memory/1820-70-0x0000000000400000-0x000000000044E000-memory.dmp	family_quasar
behavioral1/memory/1820-75-0x0000000000400000-0x000000000044E000-memory.dmp	family_quasar
behavioral1/memory/1820-73-0x0000000000400000-0x000000000044E000-memory.dmp	family_quasar

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Executes dropped EXE 1 IoCs

Processes:

aspnet_compiler.exe

pid process

1820 aspnet_compiler.exe
Loads dropped DLL 1 IoCs

Processes:

9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe

pid process

1472 9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

7 ip-api.com

pid	process
1820	aspnet_compiler.exe

flow	ioc
7	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe

description	pid	process	target process
PID 1472 set thread context of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe

pid	process
1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe
1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe
Token: SeDebugPrivilege	1820	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exeWScript.exe

description	pid	process	target process
PID 1472 wrote to memory of 1944	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	WScript.exe
PID 1472 wrote to memory of 1944	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	WScript.exe
PID 1472 wrote to memory of 1944	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	WScript.exe
PID 1472 wrote to memory of 1944	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	WScript.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1472 wrote to memory of 1820	1472	9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe	aspnet_compiler.exe
PID 1944 wrote to memory of 928	1944	WScript.exe	powershell.exe
PID 1944 wrote to memory of 928	1944	WScript.exe	powershell.exe
PID 1944 wrote to memory of 928	1944	WScript.exe	powershell.exe
PID 1944 wrote to memory of 928	1944	WScript.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe
"C:\Users\Admin\AppData\Local\Temp\9df4e1f2aca6df41008c405008749423352533359efba8e5ca865bf8f1f5cb8a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1472

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\zHuhaouwpfrof.vbs"
2⤵
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath C:\
3⤵
PID:928

C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
MD5
1e98e92a982af948ee18ee819a2d8ad1

SHA1
6cb0bd87815118351e5e32c50b434079dfba255c

SHA256
235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778

SHA512
6711de2e00462c49852cee03fd8ef720310c4ffa5b3a653c08f2913a6146974f28b8a3b3ff38b3097310852a5aa3b964b77945bcefef3856911eb9acd0e42c6f

Download Submit
C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
MD5
1e98e92a982af948ee18ee819a2d8ad1

SHA1
6cb0bd87815118351e5e32c50b434079dfba255c

SHA256
235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778

SHA512
6711de2e00462c49852cee03fd8ef720310c4ffa5b3a653c08f2913a6146974f28b8a3b3ff38b3097310852a5aa3b964b77945bcefef3856911eb9acd0e42c6f

Download Submit
C:\Users\Admin\AppData\Local\Temp\zHuhaouwpfrof.vbs
MD5
570e1760047887d4773c02a7f0c0a9ef

SHA1
ea36b58136c15c0c38ca496e5fd55e9de62073dc

SHA256
c14774447472f5eec655d2046e6e4930b3bed4877de328d4f8a58416b7144db2

SHA512
aeb14674534d2a4cc6d58fe733a4a6085d031f1a45ddad9e3e8fa312879b6cd8a1dff962529639b8ebea98d1ca8a9d42c0893d267696a70c7e9db696980b9ef3

Download Submit
\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
MD5
1e98e92a982af948ee18ee819a2d8ad1

SHA1
6cb0bd87815118351e5e32c50b434079dfba255c

SHA256
235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778

SHA512
6711de2e00462c49852cee03fd8ef720310c4ffa5b3a653c08f2913a6146974f28b8a3b3ff38b3097310852a5aa3b964b77945bcefef3856911eb9acd0e42c6f

Download Submit
memory/928-80-0x0000000073000000-0x00000000735AB000-memory.dmp

Filesize
5.7MB

Download
memory/1472-54-0x00000000011E0000-0x0000000001258000-memory.dmp

Filesize
480KB

Download
memory/1472-55-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/1472-56-0x0000000000300000-0x0000000000312000-memory.dmp

Filesize
72KB

Download
memory/1472-57-0x0000000004A40000-0x0000000004A41000-memory.dmp

Filesize
4KB

Download
memory/1472-58-0x0000000000980000-0x00000000009A4000-memory.dmp

Filesize
144KB

Download
memory/1820-66-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-68-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-64-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-70-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-75-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-73-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-62-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1820-78-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/1820-79-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/1944-60-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads