quasar | 73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04

Analysis

max time kernel
139s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
29/06/2024, 01:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe
Size

3.6MB
MD5

78a7612603af19fb92d614af1e769f2a
SHA1

c032c86ab52a986d8fb85b4a2ffc4a41d2ec0a80
SHA256

73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04
SHA512

5add757bf13e4e4bf404c7f3015caf0b6c22355ee47a0be11c0bdf7aa1e868b4c49aea1ce0aa899811733be63d96b60c90e410c5c3542500a7cf51dd28380781
SSDEEP

49152:LdbIKJzytEyM67fYoiJTwC/rMIqLwRjwVofSOtGhpGjyxqRlEBPPmgtPXVMNmIqK:RfgEy7755yrkwVwVWSqjePZ9Xg5cI

Score

10^/10

quasar newoffice spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

newoffice

117.18.7.76:3782

Mutex

d908c8ed-ea88-484e-a3d2-dcbe66ac7cfc

Attributes

encryption_key
FD2DE574AF7E363A5304DF85B3475F93A948C103
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Client Startup
subdirectory
SubDir

Signatures

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

Quasar payload 1 IoCs

resource	yara_rule
behavioral2/memory/836-3-0x0000029C44EC0000-0x0000029C451E4000-memory.dmp	family_quasar

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	836	73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
836	73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe

C:\Users\Admin\AppData\Local\Temp\73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe
"C:\Users\Admin\AppData\Local\Temp\73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:836

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4532,i,2029050989380753659,15333598055019363793,262144 --variations-seed-version --mojo-platform-channel-handle=1044 /prefetch:8
1⤵
PID:2636

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/836-0-0x0000029C2A230000-0x0000029C2A555000-memory.dmp

Filesize
3.1MB

Download
memory/836-1-0x0000029C2A230000-0x0000029C2A555000-memory.dmp

Filesize
3.1MB

Download
memory/836-2-0x00007FFCB7663000-0x00007FFCB7665000-memory.dmp

Filesize
8KB

Download
memory/836-3-0x0000029C44EC0000-0x0000029C451E4000-memory.dmp

Filesize
3.1MB

Download
memory/836-4-0x00007FFCB7660000-0x00007FFCB8121000-memory.dmp

Filesize
10.8MB

Download
memory/836-5-0x00007FFCB7660000-0x00007FFCB8121000-memory.dmp

Filesize
10.8MB

Download
memory/836-6-0x00007FFCB7660000-0x00007FFCB8121000-memory.dmp

Filesize
10.8MB

Download
memory/836-7-0x00007FFCB7660000-0x00007FFCB8121000-memory.dmp

Filesize
10.8MB

Download
memory/836-8-0x0000029C44C80000-0x0000029C44CD0000-memory.dmp

Filesize
320KB

Download
memory/836-9-0x0000029C45E60000-0x0000029C45F12000-memory.dmp

Filesize
712KB

Download
memory/836-10-0x0000029C44B60000-0x0000029C44B72000-memory.dmp

Filesize
72KB

Download
memory/836-11-0x0000029C45F20000-0x0000029C45F5C000-memory.dmp

Filesize
240KB

Download
memory/836-12-0x00007FFCB7663000-0x00007FFCB7665000-memory.dmp

Filesize
8KB

Download
memory/836-13-0x00007FFCB7660000-0x00007FFCB8121000-memory.dmp

Filesize
10.8MB

Download
memory/836-14-0x00007FFCB7660000-0x00007FFCB8121000-memory.dmp

Filesize
10.8MB

Download
memory/836-15-0x00007FFCB7660000-0x00007FFCB8121000-memory.dmp

Filesize
10.8MB

Download