quasar | 3fe52d194f176397ab988ef072b0cb64dd8a7997ce99e53fa36d94bc3d4beb45

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 21:43

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General

Target

Blorious-V1.exe
Size

3.3MB
MD5

ab7ba1e3026b48ceadd7b68950f0e693
SHA1

18f1b5fb26221b6404b549b09699adb7663d9b60
SHA256

3fe52d194f176397ab988ef072b0cb64dd8a7997ce99e53fa36d94bc3d4beb45
SHA512

d595be554b5cc1824a4310c1cd81c4357833f49c2f1fe48ab9133d1d6abfa34377b039d40a9acbcaedd28955f5b3b4c5e5a15faa55b10a4f7eb2420deb948b41
SSDEEP

49152:rvyI22SsaNYfdPBldt698dBcjHjdSZ1J/foGdUNLTHHB72eh2NT:rvf22SsaNYfdPBldt6+dBcjHjdSp

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

192.168.0.134:4782

Mutex

b9145fb3-526d-41e5-a912-983ece635713

Attributes

encryption_key
44DC4ECD533CD0CB4AAF178AEB927FA0D40432AF
install_name
Blorious.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Microsoft Gaming Utility
subdirectory
Blorious

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/2172-1-0x0000000000AB0000-0x0000000000E00000-memory.dmp	family_quasar
behavioral1/files/0x000800000001707c-6.dat	family_quasar
behavioral1/memory/2992-10-0x0000000000FC0000-0x0000000001310000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2992	Blorious.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2820	schtasks.exe
2616	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	Blorious-V1.exe
Token: SeDebugPrivilege	2992	Blorious.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2992	Blorious.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2820	2172	Blorious-V1.exe	31
PID 2172 wrote to memory of 2820	2172	Blorious-V1.exe	31
PID 2172 wrote to memory of 2820	2172	Blorious-V1.exe	31
PID 2172 wrote to memory of 2992	2172	Blorious-V1.exe	33
PID 2172 wrote to memory of 2992	2172	Blorious-V1.exe	33
PID 2172 wrote to memory of 2992	2172	Blorious-V1.exe	33
PID 2992 wrote to memory of 2616	2992	Blorious.exe	34
PID 2992 wrote to memory of 2616	2992	Blorious.exe	34
PID 2992 wrote to memory of 2616	2992	Blorious.exe	34

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Blorious-V1.exe
"C:\Users\Admin\AppData\Local\Temp\Blorious-V1.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Microsoft Gaming Utility" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Blorious\Blorious.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2820
- C:\Users\Admin\AppData\Roaming\Blorious\Blorious.exe
  "C:\Users\Admin\AppData\Roaming\Blorious\Blorious.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2992
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Microsoft Gaming Utility" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Blorious\Blorious.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Blorious\Blorious.exe

Filesize
3.3MB

MD5
ab7ba1e3026b48ceadd7b68950f0e693

SHA1
18f1b5fb26221b6404b549b09699adb7663d9b60

SHA256
3fe52d194f176397ab988ef072b0cb64dd8a7997ce99e53fa36d94bc3d4beb45

SHA512
d595be554b5cc1824a4310c1cd81c4357833f49c2f1fe48ab9133d1d6abfa34377b039d40a9acbcaedd28955f5b3b4c5e5a15faa55b10a4f7eb2420deb948b41

Download Submit
memory/2172-0-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

Filesize
4KB

Download
memory/2172-1-0x0000000000AB0000-0x0000000000E00000-memory.dmp

Filesize
3.3MB

Download
memory/2172-2-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download
memory/2172-8-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download
memory/2992-9-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download
memory/2992-10-0x0000000000FC0000-0x0000000001310000-memory.dmp

Filesize
3.3MB

Download
memory/2992-11-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download
memory/2992-12-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads