quasar | 314e9bbe1e43938595f774fe97f4926c9f169493f9ea6f5a5f2b31d7f636cacd

Analysis

max time kernel
138s
max time network
150s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07/02/2025, 08:28

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General

Target

314e9bbe1e43938595f774fe97f4926c9f169493f9ea6.exe
Size

3.1MB
MD5

03b55d6ac2f64414dc30dd72b0da1f0f
SHA1

ef558eca01ec67ab75e9f95d8e8bf7a669bc8ae3
SHA256

314e9bbe1e43938595f774fe97f4926c9f169493f9ea6f5a5f2b31d7f636cacd
SHA512

0facab9d27811af1ff6327fdef4444eb93aba175979a0d4788ff3c8709bcb6f9600d6d9b5febc0ee6b079590d30cf72db91b14d513f7996bd37e62285ef7f426
SSDEEP

49152:DvEI22SsaNYfdPBldt698dBcjH5OokzoaM7LoGTUTHHB72eh2NT:Dvp22SsaNYfdPBldt6+dBcjHAnzu

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

193.161.193.99:35024

Mutex

c43ec3d5-ee0a-428c-b759-6a528906b342

Attributes

encryption_key
55EBDCAC6A0AD087E3335B935F8905200B2957F3
install_name
Client.exe
log_directory
Logs
reconnect_delay
100
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/2376-1-0x0000000000EA0000-0x00000000011C4000-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	2376	314e9bbe1e43938595f774fe97f4926c9f169493f9ea6.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2376	314e9bbe1e43938595f774fe97f4926c9f169493f9ea6.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2376	314e9bbe1e43938595f774fe97f4926c9f169493f9ea6.exe

C:\Users\Admin\AppData\Local\Temp\314e9bbe1e43938595f774fe97f4926c9f169493f9ea6.exe
"C:\Users\Admin\AppData\Local\Temp\314e9bbe1e43938595f774fe97f4926c9f169493f9ea6.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2376

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/2376-0-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/2376-1-0x0000000000EA0000-0x00000000011C4000-memory.dmp

Filesize
3.1MB

Download
memory/2376-2-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/2376-3-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/2376-4-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download