quasar | 92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b

Analysis

max time kernel
98s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 03:54

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General

Target

92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b.exe
Size

3.1MB
MD5

82ab58a9d1af41eb4ea63f2417366cc9
SHA1

dab04289bc735e8dcd4ca248681f095803a3d87e
SHA256

92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b
SHA512

e2ee7c47fc17c1f06dae659baf4ef2188d6abe7cb37c43002c2c68d2d624d7ba125859fa243eff854a20eecade3b914a7f6f3cc93d5e460b3ff9248659de07ee
SSDEEP

49152:WvfI22SsaNYfdPBldt698dBcjH/NRJ6IbR3LoGdWzTHHB72eh2NT:Wvw22SsaNYfdPBldt6+dBcjH/NRJ6i

Score

10^/10

quasar firewall v01 discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Firewall v01

73.63.222.152:4782

Mutex

43c70f00-365b-49e7-8892-e9b0651b1384

Attributes

encryption_key
1F4C9888D5F5A2516EAA3692591870162B9295E5
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
behavioral2/memory/1576-1-0x00000000000F0000-0x0000000000414000-memory.dmp	family_quasar

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3892	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3892	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1576	92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 2680	1576	92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b.exe	89
PID 1576 wrote to memory of 2680	1576	92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b.exe	89
PID 2680 wrote to memory of 3084	2680	cmd.exe	91
PID 2680 wrote to memory of 3084	2680	cmd.exe	91
PID 2680 wrote to memory of 3892	2680	cmd.exe	92
PID 2680 wrote to memory of 3892	2680	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b.exe
"C:\Users\Admin\AppData\Local\Temp\92a61acb5fd10680e88164bc308dc8c64195245c443a7ecc862e77bb2f21586b.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qYF865NhwkQt.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:3084
- - C:\Windows\system32\PING.EXE
    ping -n 10 localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\qYF865NhwkQt.bat

Filesize
265B

MD5
cb61abf6dacb794a86ab00e658f2736b

SHA1
a392f55ada18319aa4d62f7e22c421c73a41643c

SHA256
481691eadc16f2c80be9d74e91b2288d1635c9f5bbbc3049df618aa815da5881

SHA512
e76a1497e3266f68fb1446ffa5fe1f497fb32f2411348f114912658616da3571639bc033d3436547d4eef32fced705587097b4476f07318b42a6225477fadb7a

Download Submit
memory/1576-0-0x00007FFDEED13000-0x00007FFDEED15000-memory.dmp

Filesize
8KB

Download
memory/1576-1-0x00000000000F0000-0x0000000000414000-memory.dmp

Filesize
3.1MB

Download
memory/1576-2-0x00007FFDEED10000-0x00007FFDEF7D1000-memory.dmp

Filesize
10.8MB

Download
memory/1576-3-0x000000001B1F0000-0x000000001B240000-memory.dmp

Filesize
320KB

Download
memory/1576-4-0x000000001CE30000-0x000000001CEE2000-memory.dmp

Filesize
712KB

Download
memory/1576-7-0x000000001B0B0000-0x000000001B0C2000-memory.dmp

Filesize
72KB

Download
memory/1576-8-0x000000001B280000-0x000000001B2BC000-memory.dmp

Filesize
240KB

Download
memory/1576-9-0x00007FFDEED13000-0x00007FFDEED15000-memory.dmp

Filesize
8KB

Download
memory/1576-10-0x00007FFDEED10000-0x00007FFDEF7D1000-memory.dmp

Filesize
10.8MB

Download
memory/1576-15-0x00007FFDEED10000-0x00007FFDEF7D1000-memory.dmp

Filesize
10.8MB

Download