quasar | a46695be041bc840e85bfe04c10149437ebf8a756aa1a000e8cb27b99b88eb74

Analysis

max time kernel
885s
max time network
895s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 03:47

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General

Target

Client-built.exe
Size

3.1MB
MD5

06852863597eb1bd83b37bb3b41c98d5
SHA1

d11647b959e42ea8d5faa39db64410e529935176
SHA256

a46695be041bc840e85bfe04c10149437ebf8a756aa1a000e8cb27b99b88eb74
SHA512

9cecea8664556ba436b6e8d6d1b5fdcd6bb72a86ab6d697f663fe6f215e4fe0bf3e4b893fa88a5495fdd814e4567348cd2c92564894f1d6914b54b9de8060c6c
SSDEEP

49152:WvbI22SsaNYfdPBldt698dBcjHts9qBbR0LoGdYCTHHB72eh2NT:Wvk22SsaNYfdPBldt6+dBcjHtSqi

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

172.19.176.1:4782

Mutex

5ff21f42-29bb-4f39-8330-d7b25899e244

Attributes

encryption_key
5FA29404115DC34E66E4C1BC971398B0B301D072
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/644-1-0x0000000000AD0000-0x0000000000DF4000-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	644	Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
644	Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
644	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:644

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/644-0-0x000007FEF5C83000-0x000007FEF5C84000-memory.dmp

Filesize
4KB

Download
memory/644-1-0x0000000000AD0000-0x0000000000DF4000-memory.dmp

Filesize
3.1MB

Download
memory/644-2-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

Filesize
9.9MB

Download
memory/644-3-0x000007FEF5C83000-0x000007FEF5C84000-memory.dmp

Filesize
4KB

Download
memory/644-4-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

Filesize
9.9MB

Download