quasar | d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2025 07:18

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General

Target

d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921.exe
Size

348KB
MD5

1f991ebc89394a5b27b929ef7687f084
SHA1

9182f8a8397f63b7095dec15a4d15856206ed772
SHA256

d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921
SHA512

23d88a25ce5c35f639f3439fbf65830da3a4a4bf65e70e2aba694f07ce64fb12c6c7153b01222074491026b9fb6a4aeb4f55e079296263153ba3143859c4ec72
SSDEEP

6144:zONHXf500MxKvb14K49bPOEHLbqQzY6yKPHKc7b:Cd50okhOetE6yKPqGb

Score

10^/10

quasar crypt discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Crypt

roblox.airdns.org:62604

Mutex

QSR_MUTEX_9BqPNntmTx0lb8HatR

Attributes

encryption_key
2G5P5Ofa0fcpAr8ENatR
install_name
Runtime Broker.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Runtime Broker
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
behavioral2/memory/4412-1-0x0000000000040000-0x000000000009E000-memory.dmp	family_quasar

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4412	d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921.exe

C:\Users\Admin\AppData\Local\Temp\d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921.exe
"C:\Users\Admin\AppData\Local\Temp\d80bf458621ad1b07b654eb998fa51dc1e441bea211346b7e0b98446e13c2921.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4412-0-0x000000007513E000-0x000000007513F000-memory.dmp

Filesize
4KB

Download
memory/4412-1-0x0000000000040000-0x000000000009E000-memory.dmp

Filesize
376KB

Download
memory/4412-2-0x0000000005030000-0x00000000055D4000-memory.dmp

Filesize
5.6MB

Download
memory/4412-3-0x0000000004B40000-0x0000000004BD2000-memory.dmp

Filesize
584KB

Download
memory/4412-4-0x0000000075130000-0x00000000758E0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-5-0x0000000004BE0000-0x0000000004C46000-memory.dmp

Filesize
408KB

Download
memory/4412-6-0x0000000005000000-0x0000000005012000-memory.dmp

Filesize
72KB

Download
memory/4412-7-0x0000000005D00000-0x0000000005D3C000-memory.dmp

Filesize
240KB

Download
memory/4412-9-0x0000000006080000-0x000000000608A000-memory.dmp

Filesize
40KB

Download
memory/4412-10-0x000000007513E000-0x000000007513F000-memory.dmp

Filesize
4KB

Download
memory/4412-11-0x0000000075130000-0x00000000758E0000-memory.dmp

Filesize
7.7MB

Download