quasar | 22cedd370dd77c1712db4bb183ca9b1bc8bfef9a5b21aac647716d3a809ab625

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
06/08/2024, 03:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Client-built.exe
Size

3.1MB
MD5

eddcb90a0444e20a6e8861b993b53a82
SHA1

0b94501870f13dc509dadf75afc3b755f587c344
SHA256

22cedd370dd77c1712db4bb183ca9b1bc8bfef9a5b21aac647716d3a809ab625
SHA512

87e9843fc8e2e67127602e7709349f4556116bd0e958c44ca926d0f494f29d60c18dea2feaa364ef966418a42115166b7fd87da4371c5e439d3fa95f626de5a1
SSDEEP

49152:zuk67WAUifMSrU4jakNWJXk6OqBCdDI+2eTKqTHHB72eh2NT:zupWAbfMSrU4jakNWJXPOfXu

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

147.185.221.20:18563

147.185.221.20:9835

Mutex

c2e1b18a-ce93-436d-ad8b-21bf89015e19

Attributes

encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
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 payload 1 IoCs

resource	yara_rule
behavioral1/memory/2560-1-0x0000000000850000-0x0000000000B7C000-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	2560	Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2560	Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2560	Client-built.exe

C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2560

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/2560-0-0x000007FEF60D3000-0x000007FEF60D4000-memory.dmp

Filesize
4KB

Download
memory/2560-1-0x0000000000850000-0x0000000000B7C000-memory.dmp

Filesize
3.2MB

Download
memory/2560-2-0x000007FEF60D0000-0x000007FEF6ABC000-memory.dmp

Filesize
9.9MB

Download
memory/2560-3-0x000007FEF60D3000-0x000007FEF60D4000-memory.dmp

Filesize
4KB

Download
memory/2560-4-0x000007FEF60D0000-0x000007FEF6ABC000-memory.dmp

Filesize
9.9MB

Download