quasar | 58f7dda2165a44ddad0d441ba356a0626d1ad619d766a58008320ec5936cdb94

Analysis

max time kernel
1046s
max time network
1050s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 16:37

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General

Target

Client-built.exe
Size

3.1MB
MD5

2df7f55c626ea8077ef2cc5ffd32dc38
SHA1

93131a8d6128ea827f1f31ada4391f94bbc1dd06
SHA256

58f7dda2165a44ddad0d441ba356a0626d1ad619d766a58008320ec5936cdb94
SHA512

362bfea6ae2127df5da06904407286c0ed49846ec230ae149a46a4cdcdb101987963a406427283d409957427bdc57a77c3ac90f567b3d00ad561f025f10912cc
SSDEEP

49152:ZvZI22SsaNYfdPBldt698dBcjHVi/2BxmgoGd5UTHHB72eh2NT:Zva22SsaNYfdPBldt6+dBcjHU/O

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

85.209.133.15:111

Mutex

95ddd19c-037b-4e62-8c64-298b31d663b8

Attributes

encryption_key
43DE31297B50FED5B1E6867AE89B621C68EF71E2
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/2508-1-0x0000000001350000-0x0000000001674000-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	2508	Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2508	Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2508	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:2508

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/2508-0-0x000007FEF53E3000-0x000007FEF53E4000-memory.dmp

Filesize
4KB

Download
memory/2508-1-0x0000000001350000-0x0000000001674000-memory.dmp

Filesize
3.1MB

Download
memory/2508-2-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

Filesize
9.9MB

Download
memory/2508-3-0x000007FEF53E3000-0x000007FEF53E4000-memory.dmp

Filesize
4KB

Download
memory/2508-4-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

Filesize
9.9MB

Download