quasar | 8996eea27038c155ff56b2e92be7890b9563a4f16f3429eefebca9185f0c96bb

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 14:38

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General

Target

Client-built.exe
Size

502KB
MD5

e2deea190fb3295976a3bf18d070233b
SHA1

e056164cfb9eb114f961f19e7181f60003ae0ce5
SHA256

8996eea27038c155ff56b2e92be7890b9563a4f16f3429eefebca9185f0c96bb
SHA512

ff2df89e00e2ecb2b88bb620885ba08e9aed29721e2d22b5c2c64f9736e097e37045dfcef8a80f1518135c5e62725ec02dcbddd492af2ab5a687980a3e2b4362
SSDEEP

6144:RTEgdc0YvXAGbgiIN2RSBUAb4qqpdNHKX6gYcEbOb899VTUjp9NcF95yEcTR3S:RTEgdfYnbgBO1cYrh3y9SFnyEcdS

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

141.11.109.176:1337

Mutex

ca86f6fa-6854-4e21-a291-bafe58087953

Attributes

encryption_key
66AB7C24B21EDAE67341911E0531E758FE651040
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/1228-1-0x0000000000A90000-0x0000000000B14000-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	1228	Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1228	Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1228	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:1228

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/1228-0-0x000007FEF5303000-0x000007FEF5304000-memory.dmp

Filesize
4KB

Download
memory/1228-1-0x0000000000A90000-0x0000000000B14000-memory.dmp

Filesize
528KB

Download
memory/1228-2-0x000007FEF5300000-0x000007FEF5CEC000-memory.dmp

Filesize
9.9MB

Download
memory/1228-3-0x000007FEF5303000-0x000007FEF5304000-memory.dmp

Filesize
4KB

Download
memory/1228-4-0x000007FEF5300000-0x000007FEF5CEC000-memory.dmp

Filesize
9.9MB

Download