quasar | 79b2e8bd0d46901502869063962252c0b80b77ff909f1e497bf4c04ae2f0ec71

Resubmissions

09-01-2025 16:23

250109-tvy9pawpbk 10

Analysis

max time kernel
160s
max time network
162s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 16:23

Sharing

Copy URL

Twitter E-mail

Reason

Machine shutdown

Report Analysis Logs

General

Target

ddnstest.exe
Size

3.1MB
MD5

0b301a943083061bb0e95c688ad02dcf
SHA1

b26d04fcad24a618a422ae156774218d42538d88
SHA256

79b2e8bd0d46901502869063962252c0b80b77ff909f1e497bf4c04ae2f0ec71
SHA512

58e8fa3c6dd985d89fa2cd6a6f91ce87929165cee9d85b0fb1cbb70cfb33053567a333464da804ee7cee80f33bb5b065de4817812b114b9c7dbe5ef60e6ab923
SSDEEP

49152:avyI22SsaNYfdPBldt698dBcjHF2tjmzeEoGdzTHHB72eh2NT:avf22SsaNYfdPBldt6+dBcjHF2te

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

hiimbob.ddnsking.com:9112

Mutex

91f1b164-f669-47a1-b3ec-59976d66b33a

Attributes

encryption_key
FD9ED3A6AE6574CE5C854385C6AC2FC432580344
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 1 IoCs

resource	yara_rule
behavioral1/memory/1272-1-0x0000000000D10000-0x0000000001034000-memory.dmp	family_quasar

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1272	ddnstest.exe
Token: 33	3048	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3048	AUDIODG.EXE
Token: 33	3048	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3048	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1272	ddnstest.exe
1272	ddnstest.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1272	ddnstest.exe
1272	ddnstest.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1272	ddnstest.exe

C:\Users\Admin\AppData\Local\Temp\ddnstest.exe
"C:\Users\Admin\AppData\Local\Temp\ddnstest.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1272

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:2272

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0xc4
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3048

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2672

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1272-0-0x000007FEF5D13000-0x000007FEF5D14000-memory.dmp

Filesize
4KB

Download
memory/1272-1-0x0000000000D10000-0x0000000001034000-memory.dmp

Filesize
3.1MB

Download
memory/1272-2-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/1272-3-0x000007FEF5D13000-0x000007FEF5D14000-memory.dmp

Filesize
4KB

Download
memory/1272-4-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/1272-8-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download