quasar | cde1b350791fbef921b7bc2241e74820f8f8c3bb12910d501e201de4df407c6c

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 03:49

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General

Target

e026a06e96e80ad0a4c72b7ebe9a4a63.exe
Size

3.1MB
MD5

e026a06e96e80ad0a4c72b7ebe9a4a63
SHA1

c10e4ab92083ed4c1c64494a10c3fb71881a78a0
SHA256

cde1b350791fbef921b7bc2241e74820f8f8c3bb12910d501e201de4df407c6c
SHA512

a613cb2777bdcd471414f0d83e69be0b84446c2810b73156cc385c92eb437ef93950581d840a8d89e0e78ccaab3d817389b4ddc2dd8eb13a988d4e94cf852617
SSDEEP

49152:PvTlL26AaNeWgPhlmVqvMQ7XSKnVWDgdhLvJwCoGdyTHHB72eh2NT:PvJL26AaNeWgPhlmVqkQ7XSK9hL

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

performance-ha.gl.at.ply.gg:33365

Mutex

ba5220e2-c4e8-4381-aad8-a85115ef955e

Attributes

encryption_key
67C139F3E9A16FF8132A3DCF42197B8BA3C38609
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

Processes:

resource yara_rule

behavioral2/memory/3876-1-0x0000000000AA0000-0x0000000000DC4000-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

Processes:

e026a06e96e80ad0a4c72b7ebe9a4a63.exe

description pid process

Token: SeDebugPrivilege 3876 e026a06e96e80ad0a4c72b7ebe9a4a63.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

e026a06e96e80ad0a4c72b7ebe9a4a63.exe

pid process

3876 e026a06e96e80ad0a4c72b7ebe9a4a63.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

e026a06e96e80ad0a4c72b7ebe9a4a63.exe

pid process

3876 e026a06e96e80ad0a4c72b7ebe9a4a63.exe

resource	yara_rule
behavioral2/memory/3876-1-0x0000000000AA0000-0x0000000000DC4000-memory.dmp	family_quasar

description	pid	process
Token: SeDebugPrivilege	3876	e026a06e96e80ad0a4c72b7ebe9a4a63.exe

pid	process
3876	e026a06e96e80ad0a4c72b7ebe9a4a63.exe

pid	process
3876	e026a06e96e80ad0a4c72b7ebe9a4a63.exe

C:\Users\Admin\AppData\Local\Temp\e026a06e96e80ad0a4c72b7ebe9a4a63.exe
"C:\Users\Admin\AppData\Local\Temp\e026a06e96e80ad0a4c72b7ebe9a4a63.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3876

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3876-0-0x00007FFA306D3000-0x00007FFA306D5000-memory.dmp

Filesize
8KB

Download
memory/3876-1-0x0000000000AA0000-0x0000000000DC4000-memory.dmp

Filesize
3.1MB

Download
memory/3876-2-0x00007FFA306D0000-0x00007FFA31191000-memory.dmp

Filesize
10.8MB

Download
memory/3876-3-0x000000001C4C0000-0x000000001C510000-memory.dmp

Filesize
320KB

Download
memory/3876-4-0x000000001C5D0000-0x000000001C682000-memory.dmp

Filesize
712KB

Download
memory/3876-5-0x00007FFA306D3000-0x00007FFA306D5000-memory.dmp

Filesize
8KB

Download
memory/3876-6-0x00007FFA306D0000-0x00007FFA31191000-memory.dmp

Filesize
10.8MB

Download