quasar | e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de

Analysis

max time kernel
141s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-01-2025 03:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe
Size

3.1MB
MD5

b48f94c872bb4e3596924f7f587b0a54
SHA1

748f86a0394486b577978794145328702ac77a62
SHA256

e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de
SHA512

2704c862668c3ad9f9222761b91861b1c84d84021c1309b309f5cd267fc77e542ca2c821dccb2d9ff2f2063dbc5b604204c2969fa68c7a0de3f2e40039655da1
SSDEEP

49152:yvtt62XlaSFNWPjljiFa2RoUYIDHxEESEQk/iRLoGdv1THHB72eh2NT:yvP62XlaSFNWPjljiFXRoUYIbxEh

Score

10^/10

quasar miner spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Miner

154.216.19.144:7000

Mutex

9aaccf69-ec3a-44b7-854b-ecd43ee8e151

Attributes

encryption_key
4A883D3FC8F269324ACDCF0E4B7FFECA042CD47D
install_name
Svc.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Svc
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
behavioral2/memory/1888-1-0x0000000000580000-0x00000000008A4000-memory.dmp	family_quasar
behavioral2/files/0x0008000000023cab-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
956	Svc.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1296	schtasks.exe
3676	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1888	e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe
Token: SeDebugPrivilege	956	Svc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
956	Svc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 1296	1888	e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe	83
PID 1888 wrote to memory of 1296	1888	e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe	83
PID 1888 wrote to memory of 956	1888	e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe	85
PID 1888 wrote to memory of 956	1888	e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe	85
PID 956 wrote to memory of 3676	956	Svc.exe	86
PID 956 wrote to memory of 3676	956	Svc.exe	86

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\e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe
"C:\Users\Admin\AppData\Local\Temp\e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Svc" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1296
- C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:956
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Svc" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Svc.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
3.1MB

MD5
b48f94c872bb4e3596924f7f587b0a54

SHA1
748f86a0394486b577978794145328702ac77a62

SHA256
e3d17377d59312e36a5e3b503a7259ffeaac4dd742222be0ad9a8ea443d3f7de

SHA512
2704c862668c3ad9f9222761b91861b1c84d84021c1309b309f5cd267fc77e542ca2c821dccb2d9ff2f2063dbc5b604204c2969fa68c7a0de3f2e40039655da1

Download Submit
memory/956-10-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/956-8-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/956-11-0x0000000002970000-0x00000000029C0000-memory.dmp

Filesize
320KB

Download
memory/956-12-0x000000001BB80000-0x000000001BC32000-memory.dmp

Filesize
712KB

Download
memory/956-15-0x000000001B420000-0x000000001B432000-memory.dmp

Filesize
72KB

Download
memory/956-16-0x000000001C390000-0x000000001C3CC000-memory.dmp

Filesize
240KB

Download
memory/956-17-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/956-18-0x000000001C080000-0x000000001C182000-memory.dmp

Filesize
1.0MB

Download
memory/1888-2-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/1888-1-0x0000000000580000-0x00000000008A4000-memory.dmp

Filesize
3.1MB

Download
memory/1888-9-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

Filesize
10.8MB

Download
memory/1888-0-0x00007FFAABF93000-0x00007FFAABF95000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads