quasar | 73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04

Analysis

max time kernel
148s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
28-06-2024 11:50

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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

Processes:

resource yara_rule

behavioral2/memory/2620-3-0x0000018771E80000-0x00000187721A4000-memory.dmp family_quasar
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe

description pid process

Token: SeDebugPrivilege 2620 73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe

pid process

2620 73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe

resource	yara_rule
behavioral2/memory/2620-3-0x0000018771E80000-0x00000187721A4000-memory.dmp	family_quasar

description	pid	process
Token: SeDebugPrivilege	2620	73399ca48340bd7a31da27d573966f23371fe4ea82625ee3b7ce2772386b9e04.exe

pid	process
2620	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:2620

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2620-0-0x000001876F1C0000-0x000001876F4E5000-memory.dmp

Filesize
3.1MB

Download
memory/2620-1-0x000001876F1C0000-0x000001876F4E5000-memory.dmp

Filesize
3.1MB

Download
memory/2620-2-0x00007FFD6FD83000-0x00007FFD6FD85000-memory.dmp

Filesize
8KB

Download
memory/2620-3-0x0000018771E80000-0x00000187721A4000-memory.dmp

Filesize
3.1MB

Download
memory/2620-4-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download
memory/2620-5-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download
memory/2620-6-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download
memory/2620-7-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download
memory/2620-8-0x0000018771AF0000-0x0000018771B40000-memory.dmp

Filesize
320KB

Download
memory/2620-9-0x0000018771D80000-0x0000018771E32000-memory.dmp

Filesize
712KB

Download
memory/2620-12-0x0000018771C40000-0x0000018771C52000-memory.dmp

Filesize
72KB

Download
memory/2620-13-0x0000018771CC0000-0x0000018771CFC000-memory.dmp

Filesize
240KB

Download
memory/2620-14-0x00007FFD6FD83000-0x00007FFD6FD85000-memory.dmp

Filesize
8KB

Download
memory/2620-15-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download
memory/2620-16-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download
memory/2620-17-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download
memory/2620-18-0x00007FFD6FD80000-0x00007FFD70842000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads