quasar | 608c7d8080473c13885a7e93a251ec928bf3d8a12eba7138558076c1aa08ead6

Resubmissions

09/11/2024, 04:25

241109-e14n2axfjb 10

Analysis

max time kernel
107s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/11/2024, 04:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Client-built.exe
Size

3.1MB
MD5

2cf22ad073a3f0cc59fedee8bc32edf2
SHA1

3d03e7eff59bc7bb5041e1c199f56fedcbb7353f
SHA256

608c7d8080473c13885a7e93a251ec928bf3d8a12eba7138558076c1aa08ead6
SHA512

6dbc265fbf649460fe39d8b4957dd4d497cf43111f824dab7a4a620100360cae2dea6abedd4645a1cc25561b3560134ca35c3c23f5634b65040fc680312555d0
SSDEEP

49152:PvvI22SsaNYfdPBldt698dBcjHZZSt1J/loGd/qLTHHB72eh2NT:Pvg22SsaNYfdPBldt6+dBcjHZZSvvq

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

193.161.193.99:1194

Mutex

a25b5bbf-cc69-4b0b-a242-9d07a80705d5

Attributes

encryption_key
23DCD2457576BD8C17F35C9C4F50BF16D2C7C161
install_name
FlipHood.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/1612-1-0x0000000000F20000-0x0000000001244000-memory.dmp	family_quasar
behavioral1/files/0x0007000000023cae-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3944	FlipHood.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1612	Client-built.exe
Token: SeDebugPrivilege	3944	FlipHood.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3944	FlipHood.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3944	FlipHood.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 3944	1612	Client-built.exe	86
PID 1612 wrote to memory of 3944	1612	Client-built.exe	86

C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Users\Admin\AppData\Roaming\SubDir\FlipHood.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\FlipHood.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:3944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
3.1MB

MD5
2cf22ad073a3f0cc59fedee8bc32edf2

SHA1
3d03e7eff59bc7bb5041e1c199f56fedcbb7353f

SHA256
608c7d8080473c13885a7e93a251ec928bf3d8a12eba7138558076c1aa08ead6

SHA512
6dbc265fbf649460fe39d8b4957dd4d497cf43111f824dab7a4a620100360cae2dea6abedd4645a1cc25561b3560134ca35c3c23f5634b65040fc680312555d0

Download Submit
memory/1612-0-0x00007FFAABF93000-0x00007FFAABF95000-memory.dmp

Filesize
8KB

Download
memory/1612-1-0x0000000000F20000-0x0000000001244000-memory.dmp

Filesize
3.1MB

Download
memory/1612-2-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/1612-10-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/3944-11-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/3944-9-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/3944-12-0x000000001BCB0000-0x000000001BD00000-memory.dmp

Filesize
320KB

Download
memory/3944-13-0x000000001BDC0000-0x000000001BE72000-memory.dmp

Filesize
712KB

Download
memory/3944-14-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download