quasar | 1db4785c2e4ffdbc8a18149d6da1ae157cb234e1837e5aae5de5db799825b0fe

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-10-2024 19:10

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General

Target

62NOU_Client-built.exe
Size

3.1MB
MD5

6c0a0f358f0a60055f0426822240fdc6
SHA1

8e9bf932812121416df746c4290e6eaf52a6ba83
SHA256

1db4785c2e4ffdbc8a18149d6da1ae157cb234e1837e5aae5de5db799825b0fe
SHA512

c81992d751e8122e0fe34b5f9dd79220091bcfc2c777421693edf344bfc427f07239e39bf266ab8974f2c2b28463a5e830e42b4401615615202e551903a6dbab
SSDEEP

49152:avbI22SsaNYfdPBldt698dBcjHhXYRxkDvJcQoGdPTHHB72eh2NT:avk22SsaNYfdPBldt6+dBcjHEk7

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

127.0.0.1:4782

127.0.0.1:80

Mutex

41dbc4e3-4c49-4e37-971d-bce5c6356d47

Attributes

encryption_key
5446A6EE72AE0400FB80FEE45AC7AEB6FA7DD14B
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

Processes:

resource	yara_rule
behavioral1/memory/2596-1-0x0000000000330000-0x0000000000654000-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:

62NOU_Client-built.exe

description	pid	Process
Token: SeDebugPrivilege	2596	62NOU_Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

62NOU_Client-built.exe

pid	Process
2596	62NOU_Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

62NOU_Client-built.exe

pid	Process
2596	62NOU_Client-built.exe

C:\Users\Admin\AppData\Local\Temp\62NOU_Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\62NOU_Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2596

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/2596-0-0x000007FEF5073000-0x000007FEF5074000-memory.dmp

Filesize
4KB

Download
memory/2596-1-0x0000000000330000-0x0000000000654000-memory.dmp

Filesize
3.1MB

Download
memory/2596-2-0x000007FEF5070000-0x000007FEF5A5C000-memory.dmp

Filesize
9.9MB

Download
memory/2596-3-0x000007FEF5073000-0x000007FEF5074000-memory.dmp

Filesize
4KB

Download
memory/2596-4-0x000007FEF5070000-0x000007FEF5A5C000-memory.dmp

Filesize
9.9MB

Download