quasar | 79b2e8bd0d46901502869063962252c0b80b77ff909f1e497bf4c04ae2f0ec71

Resubmissions

09-01-2025 16:12

250109-tnzlwawmel 10

09-01-2025 16:08

250109-tlcpbswlhj 10

09-01-2025 16:04

250109-th4zeawldl 10

Analysis

max time kernel
215s
max time network
216s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 16:08

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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/2320-1-0x0000000000D50000-0x0000000001074000-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 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	ddnstest.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2320	ddnstest.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2320	ddnstest.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2320	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:2320

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

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Downloads

memory/2320-0-0x000007FEF50B3000-0x000007FEF50B4000-memory.dmp

Filesize
4KB

Download
memory/2320-1-0x0000000000D50000-0x0000000001074000-memory.dmp

Filesize
3.1MB

Download
memory/2320-2-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

Filesize
9.9MB

Download
memory/2320-3-0x000007FEF50B3000-0x000007FEF50B4000-memory.dmp

Filesize
4KB

Download
memory/2320-4-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

Filesize
9.9MB

Download