quasar | 9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
09-02-2025 01:45

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General

Target

9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc.exe
Size

3.1MB
MD5

ecbaabfbd994323f1163a76d7d5c65fd
SHA1

9e3883a48d219eb16f01b498a39c719214bac823
SHA256

9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc
SHA512

47b25f096807aa9dd9017d94559f448738d506418469ca11e45535089ee0212c5edf1e12e09673b9023bef711ec2897b45b4ac18e9198f5667c19f9753fffc8b
SSDEEP

49152:Pv9t62XlaSFNWPjljiFa2RoUYI6CZ1JnToGd4UTHHB72eh2NT:Pv/62XlaSFNWPjljiFXRoUYI6CZ

Score

10^/10

quasar office23 discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office23

127.0.0.1:4782

Mutex

186303e3-32b8-4c3d-afa0-f4960783e617

Attributes

encryption_key
2ECA181EF427859ECFAEA320EE1A367322BECDD5
install_name
Client.exe
log_directory
Logs
reconnect_delay
1000
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/4316-1-0x0000000000FF0000-0x0000000001314000-memory.dmp	family_quasar

Downloads MZ/PE file 1 IoCs

flow	pid	Process
82	1864	Process not Found

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

System Information Discovery
T1082

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	MicrosoftEdgeUpdate.exe

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
4452	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4316	9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4316	9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4316	9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc.exe

C:\Users\Admin\AppData\Local\Temp\9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc.exe
"C:\Users\Admin\AppData\Local\Temp\9cb54445da7f827f34e69da4096146efd0196ef6363a5d075fd7c4b525ddbedc.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4316

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDQ5MjgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxNzQzMjM4OTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjkwOTg2MzY4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4316-1-0x0000000000FF0000-0x0000000001314000-memory.dmp

Filesize
3.1MB

Download
memory/4316-0-0x00007FFC2FF63000-0x00007FFC2FF65000-memory.dmp

Filesize
8KB

Download
memory/4316-2-0x00007FFC2FF60000-0x00007FFC30A21000-memory.dmp

Filesize
10.8MB

Download
memory/4316-4-0x000000001CB20000-0x000000001CBD2000-memory.dmp

Filesize
712KB

Download
memory/4316-3-0x000000001CA10000-0x000000001CA60000-memory.dmp

Filesize
320KB

Download
memory/4316-5-0x00007FFC2FF63000-0x00007FFC2FF65000-memory.dmp

Filesize
8KB

Download
memory/4316-6-0x00007FFC2FF60000-0x00007FFC30A21000-memory.dmp

Filesize
10.8MB

Download