quasar | b295072462e8302c6897886f1836b3c2b132790bf9fd5ec301a9f271b3477801

Analysis

max time kernel
128s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
04/07/2023, 20:08

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General

Target

HYPER-FORTNITE/hc-fortnite.exe
Size

3.1MB
MD5

bc825f693b97e029dffa892c42d99fe2
SHA1

00bf86e0ae21c00ba43210e4105e813c4f792392
SHA256

f2d7d628c62f91f57765b48e86ece87d258030a4cfd5fe1bfffd7fcc18bc3581
SHA512

ecea97dd3a550700779ea1b030e0aa39d8be2af6d2484883829f6d332eb4eac65f0a26565853adc77c6b6f073f1ca54e73fc80a30f0db75e97228bc8fca0f8dc
SSDEEP

49152:zvvlL26AaNeWgPhlmVqvMQ7XSKfnBiwotd2THHB72eh2NT:zv9L26AaNeWgPhlmVqkQ7XSK/BZ

Score

10^/10

quasar valo spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

VALO

185.241.208.43:4782

Mutex

c5ba7d24-8de6-4dd2-a30d-13548e7da4c7

Attributes

encryption_key
C1C8793607E1D3D2C06DFA304C79CC5F3EEA65A0
install_name
Intel Audio Driver x64.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Intel Audio Driver x64
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral10/memory/2928-133-0x0000000000540000-0x0000000000864000-memory.dmp	family_quasar
behavioral10/files/0x000b000000023163-138.dat	family_quasar
behavioral10/files/0x000b000000023163-140.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3000	Intel Audio Driver x64.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1604	schtasks.exe
4932	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	hc-fortnite.exe
Token: SeDebugPrivilege	3000	Intel Audio Driver x64.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 1604	2928	hc-fortnite.exe	85
PID 2928 wrote to memory of 1604	2928	hc-fortnite.exe	85
PID 2928 wrote to memory of 3000	2928	hc-fortnite.exe	86
PID 2928 wrote to memory of 3000	2928	hc-fortnite.exe	86
PID 3000 wrote to memory of 4932	3000	Intel Audio Driver x64.exe	87
PID 3000 wrote to memory of 4932	3000	Intel Audio Driver x64.exe	87

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\HYPER-FORTNITE\hc-fortnite.exe
"C:\Users\Admin\AppData\Local\Temp\HYPER-FORTNITE\hc-fortnite.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Intel Audio Driver x64" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Intel Audio Driver x64.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:1604
- C:\Users\Admin\AppData\Roaming\SubDir\Intel Audio Driver x64.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Intel Audio Driver x64.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Intel Audio Driver x64" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Intel Audio Driver x64.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:4932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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\SubDir\Intel Audio Driver x64.exe

Filesize
3.1MB

MD5
bc825f693b97e029dffa892c42d99fe2

SHA1
00bf86e0ae21c00ba43210e4105e813c4f792392

SHA256
f2d7d628c62f91f57765b48e86ece87d258030a4cfd5fe1bfffd7fcc18bc3581

SHA512
ecea97dd3a550700779ea1b030e0aa39d8be2af6d2484883829f6d332eb4eac65f0a26565853adc77c6b6f073f1ca54e73fc80a30f0db75e97228bc8fca0f8dc

Download Submit
C:\Users\Admin\AppData\Roaming\SubDir\Intel Audio Driver x64.exe

Filesize
3.1MB

MD5
bc825f693b97e029dffa892c42d99fe2

SHA1
00bf86e0ae21c00ba43210e4105e813c4f792392

SHA256
f2d7d628c62f91f57765b48e86ece87d258030a4cfd5fe1bfffd7fcc18bc3581

SHA512
ecea97dd3a550700779ea1b030e0aa39d8be2af6d2484883829f6d332eb4eac65f0a26565853adc77c6b6f073f1ca54e73fc80a30f0db75e97228bc8fca0f8dc

Download Submit
memory/2928-133-0x0000000000540000-0x0000000000864000-memory.dmp

Filesize
3.1MB

Download
memory/2928-134-0x000000001B5D0000-0x000000001B5E0000-memory.dmp

Filesize
64KB

Download
memory/3000-141-0x000000001B8F0000-0x000000001B900000-memory.dmp

Filesize
64KB

Download
memory/3000-142-0x000000001B850000-0x000000001B8A0000-memory.dmp

Filesize
320KB

Download
memory/3000-143-0x000000001C4B0000-0x000000001C562000-memory.dmp

Filesize
712KB

Download
memory/3000-144-0x0000000003010000-0x0000000003022000-memory.dmp

Filesize
72KB

Download
memory/3000-145-0x000000001B8A0000-0x000000001B8DC000-memory.dmp

Filesize
240KB

Download
memory/3000-146-0x000000001B8F0000-0x000000001B900000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads