quasar | 9a822779bda311ccef9b3d2f88a75ebeb2f5113d2b45d5ed7a0d25a35c3fd8e5

Analysis

max time kernel
33s
max time network
36s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 19:43

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General

Target

phantomX loader.exe
Size

3.3MB
MD5

8ac22fce32688203c5857e972a48c47c
SHA1

6808d49fe912bfe43b2d4fb6456c7da51fff9f5a
SHA256

9a822779bda311ccef9b3d2f88a75ebeb2f5113d2b45d5ed7a0d25a35c3fd8e5
SHA512

968f1d55159e59b753583eb88627ca0d392f92a753154633f95ef598aca32fa1e134aa5b7d7c42007fbfcca1fa74f084a19f2856b5b341a7a205601e957aba34
SSDEEP

98304:lv+L26AaNeWgPhlmVqkQ7XSK4Sk8/eFb:J+4Sf8G

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

192.168.0.48:4782

Mutex

33376e96-8fb8-4154-bd0a-fd0f58f69afe

Attributes

encryption_key
9DE7C466D5C89B4DCD53772026AFA9FDFA35108F
install_name
phantomX injector.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 2 IoCs

resource	yara_rule
behavioral1/memory/2672-1-0x0000000000A00000-0x0000000000D5E000-memory.dmp	family_quasar
behavioral1/files/0x000a000000023b8c-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
668	phantomX injector.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\SubDir\phantomX injector.exe	phantomX loader.exe
File opened for modification	C:\Windows\system32\SubDir\phantomX injector.exe	phantomX loader.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	phantomX loader.exe
Token: SeDebugPrivilege	668	phantomX injector.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
668	phantomX injector.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
668	phantomX injector.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 668	2672	phantomX loader.exe	83
PID 2672 wrote to memory of 668	2672	phantomX loader.exe	83

C:\Users\Admin\AppData\Local\Temp\phantomX loader.exe
"C:\Users\Admin\AppData\Local\Temp\phantomX loader.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\system32\SubDir\phantomX injector.exe
  "C:\Windows\system32\SubDir\phantomX injector.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:668

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\System32\SubDir\phantomX injector.exe

Filesize
3.3MB

MD5
8ac22fce32688203c5857e972a48c47c

SHA1
6808d49fe912bfe43b2d4fb6456c7da51fff9f5a

SHA256
9a822779bda311ccef9b3d2f88a75ebeb2f5113d2b45d5ed7a0d25a35c3fd8e5

SHA512
968f1d55159e59b753583eb88627ca0d392f92a753154633f95ef598aca32fa1e134aa5b7d7c42007fbfcca1fa74f084a19f2856b5b341a7a205601e957aba34

Download Submit
memory/668-8-0x00007FFA03C40000-0x00007FFA04701000-memory.dmp

Filesize
10.8MB

Download
memory/668-10-0x00007FFA03C40000-0x00007FFA04701000-memory.dmp

Filesize
10.8MB

Download
memory/668-11-0x000000001B710000-0x000000001B760000-memory.dmp

Filesize
320KB

Download
memory/668-12-0x000000001B820000-0x000000001B8D2000-memory.dmp

Filesize
712KB

Download
memory/668-13-0x00007FFA03C40000-0x00007FFA04701000-memory.dmp

Filesize
10.8MB

Download
memory/2672-0-0x00007FFA03C43000-0x00007FFA03C45000-memory.dmp

Filesize
8KB

Download
memory/2672-1-0x0000000000A00000-0x0000000000D5E000-memory.dmp

Filesize
3.4MB

Download
memory/2672-2-0x00007FFA03C40000-0x00007FFA04701000-memory.dmp

Filesize
10.8MB

Download
memory/2672-9-0x00007FFA03C40000-0x00007FFA04701000-memory.dmp

Filesize
10.8MB

Download