quasar | 8987314d0557f91f95e906b89b3856d39e248431e1a2597b7942c2b8dbb093d2

Analysis

max time kernel
95s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 20:51

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General

Target

wave-executor.exe
Size

3.2MB
MD5

c6a2761a380fe89642ceabb80b8fcd02
SHA1

7127092d54fa5a77827eb01f975a29990c3927af
SHA256

8987314d0557f91f95e906b89b3856d39e248431e1a2597b7942c2b8dbb093d2
SHA512

599ca4a551ffa916c646bd2db44c2312d9fe3a6f39ed272886e9af1fe54cbf9f5a41f31efe78097f6586af575fa99e2ef74143590e168de015e6459e5c32164d
SSDEEP

98304:GvP22SsaNYfdPBldt6+dBcjHwMCuvlImr:4A7jQMCudIm

Score

10^/10

quasar rblx spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

rblx

2.tcp.eu.ngrok.io:14654

Mutex

4db75728-7a45-4507-a778-a8ace1ed2269

Attributes

encryption_key
4DE9D49BF4A14CD273D6EFBFCC1CAF4C36BBD512
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Multimedia Center
subdirectory
SubDir

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3084-1-0x0000000000110000-0x0000000000456000-memory.dmp	family_quasar
behavioral2/files/0x000a000000023b6d-5.dat	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid	Process
2692	Client.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service

T1102

Processes:

flow	ioc
14	2.tcp.eu.ngrok.io

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

Processes:

schtasks.exeschtasks.exe

pid	Process
264	schtasks.exe
2372	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

wave-executor.exeClient.exe

description	pid	Process
Token: SeDebugPrivilege	3084	wave-executor.exe
Token: SeDebugPrivilege	2692	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wave-executor.exeClient.exe

description	pid	Process	procid_target
PID 3084 wrote to memory of 264	3084	wave-executor.exe	82
PID 3084 wrote to memory of 264	3084	wave-executor.exe	82
PID 3084 wrote to memory of 2692	3084	wave-executor.exe	84
PID 3084 wrote to memory of 2692	3084	wave-executor.exe	84
PID 2692 wrote to memory of 2372	2692	Client.exe	85
PID 2692 wrote to memory of 2372	2692	Client.exe	85

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\wave-executor.exe
"C:\Users\Admin\AppData\Local\Temp\wave-executor.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Windows Multimedia Center" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:264
- C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Windows Multimedia Center" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2372

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

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

Filesize
3.2MB

MD5
c6a2761a380fe89642ceabb80b8fcd02

SHA1
7127092d54fa5a77827eb01f975a29990c3927af

SHA256
8987314d0557f91f95e906b89b3856d39e248431e1a2597b7942c2b8dbb093d2

SHA512
599ca4a551ffa916c646bd2db44c2312d9fe3a6f39ed272886e9af1fe54cbf9f5a41f31efe78097f6586af575fa99e2ef74143590e168de015e6459e5c32164d

Download Submit
memory/2692-9-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

Filesize
10.8MB

Download
memory/2692-10-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

Filesize
10.8MB

Download
memory/2692-11-0x000000001C7E0000-0x000000001C830000-memory.dmp

Filesize
320KB

Download
memory/2692-12-0x000000001C8F0000-0x000000001C9A2000-memory.dmp

Filesize
712KB

Download
memory/2692-15-0x000000001C850000-0x000000001C862000-memory.dmp

Filesize
72KB

Download
memory/2692-16-0x000000001C8B0000-0x000000001C8EC000-memory.dmp

Filesize
240KB

Download
memory/2692-17-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

Filesize
10.8MB

Download
memory/3084-0-0x00007FFC7EB33000-0x00007FFC7EB35000-memory.dmp

Filesize
8KB

Download
memory/3084-1-0x0000000000110000-0x0000000000456000-memory.dmp

Filesize
3.3MB

Download
memory/3084-2-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

Filesize
10.8MB

Download
memory/3084-8-0x00007FFC7EB30000-0x00007FFC7F5F1000-memory.dmp

Filesize
10.8MB

Download