quasar | fa59119030b7d7291f97ea16728f592d3e2ea1aab62172e0b57a60db818ea082

Analysis

max time kernel
149s
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
15-11-2024 15:30

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General

Target

2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe
Size

5.2MB
MD5

be97d2a18bd4e9eb41f80f3e3a71656a
SHA1

f181fb8964b4f7be4a69fc196ec9b95c5b575ea2
SHA256

fa59119030b7d7291f97ea16728f592d3e2ea1aab62172e0b57a60db818ea082
SHA512

170d383ef0418ce3a533487d99ffa8ca47ad843040747bd98a48f73867c57570f7c37429a8c0c92172f14fa902666bfa195d42a2a2cdf838ab01816313135632
SSDEEP

98304:SCYMqfuEk+8WwFsBSSUCa9qyr1ijMauCDhg0eUAnMyApx0GXtRnWV:xYMqfuEk+8W0bzJVauCDT0MyApxPjWV

Score

10^/10

quasar 1 bootkit discovery persistence spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

127.0.0.1:4782

Mutex

5313dac9-d7fe-402d-ba5b-5c27a31badf6

Attributes

encryption_key
597DA3394F4E2AF05CA763935FC87776B4F9F811
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 5 IoCs

resource	yara_rule
behavioral2/memory/2828-2-0x0000000002CF0000-0x0000000004CC2000-memory.dmp	family_quasar
behavioral2/memory/2080-3-0x0000000000500000-0x0000000000824000-memory.dmp	family_quasar
behavioral2/memory/2080-5-0x0000000000500000-0x0000000000824000-memory.dmp	family_quasar
behavioral2/memory/2080-4-0x0000000000500000-0x0000000000824000-memory.dmp	family_quasar
behavioral2/memory/2828-9-0x0000000002CF0000-0x0000000004CC2000-memory.dmp	family_quasar

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85

System Location Discovery: System Language Discovery 1 TTPs 2 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	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85
PID 2828 wrote to memory of 2080	2828	2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Users\Admin\AppData\Local\Temp\2024-11-15_be97d2a18bd4e9eb41f80f3e3a71656a_luca-stealer_magniber.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2080-0-0x0000000000500000-0x0000000000824000-memory.dmp

Filesize
3.1MB

Download
memory/2080-1-0x0000000000500000-0x0000000000824000-memory.dmp

Filesize
3.1MB

Download
memory/2080-3-0x0000000000500000-0x0000000000824000-memory.dmp

Filesize
3.1MB

Download
memory/2080-5-0x0000000000500000-0x0000000000824000-memory.dmp

Filesize
3.1MB

Download
memory/2080-4-0x0000000000500000-0x0000000000824000-memory.dmp

Filesize
3.1MB

Download
memory/2080-6-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/2080-7-0x00000000052C0000-0x0000000005864000-memory.dmp

Filesize
5.6MB

Download
memory/2080-8-0x0000000004E10000-0x0000000004EA2000-memory.dmp

Filesize
584KB

Download
memory/2828-2-0x0000000002CF0000-0x0000000004CC2000-memory.dmp

Filesize
31.8MB

Download
memory/2828-9-0x0000000002CF0000-0x0000000004CC2000-memory.dmp

Filesize
31.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads