quasar | 7f9d6d2c44bc60b7bef2e9b8f1ec7bd1eb80a1f5afb70149c43bfe71303379a8

General

Target

Client-built.exe
Size

3.1MB
MD5

4801342f49901b8edeb8a1cb7ce58a5d
SHA1

3f9682bf26530588fc93eb6b1bba40e00dc33320
SHA256

7f9d6d2c44bc60b7bef2e9b8f1ec7bd1eb80a1f5afb70149c43bfe71303379a8
SHA512

37d074b96fe0d729ba2bdd27b976655448df89c2dc5461018e57ff0cb4b26f7a3c2795069feea0831f32b434dfdf5c84df231948064064fd809de21f4260cb6e
SSDEEP

49152:6vVt62XlaSFNWPjljiFa2RoUYIjjxNESEHk/iALoGd6THHB72eh2NT:6vn62XlaSFNWPjljiFXRoUYIfxae

Score

10^/10

quasar alp-kanka spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

alp-kanka

C2

192.168.1.1:4782

Mutex

b4948b57-2f19-4a16-98ad-5a89f56f9f24

Attributes

encryption_key
A09E26E97179D914C9A83695E0FF3065AD4BE793
install_name
jV9QKlmn9O.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Spotify
subdirectory
Client

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4260-1-0x0000000000E50000-0x0000000001174000-memory.dmp	family_quasar
C:\Windows\System32\Client\jV9QKlmn9O.exe	family_quasar

Executes dropped EXE 1 IoCs

Processes:

jV9QKlmn9O.exe

pid process

4868 jV9QKlmn9O.exe

pid	process
4868	jV9QKlmn9O.exe

Drops file in System32 directory 2 IoCs

Processes:

Client-built.exe

description	ioc	process
File created	C:\Windows\system32\Client\jV9QKlmn9O.exe	Client-built.exe
File opened for modification	C:\Windows\system32\Client\jV9QKlmn9O.exe	Client-built.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

5004 schtasks.exe
656 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Client-built.exejV9QKlmn9O.exe

description pid process

Token: SeDebugPrivilege 4260 Client-built.exe
Token: SeDebugPrivilege 4868 jV9QKlmn9O.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

jV9QKlmn9O.exe

pid process

4868 jV9QKlmn9O.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

jV9QKlmn9O.exe

pid process

4868 jV9QKlmn9O.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

jV9QKlmn9O.exe

pid process

4868 jV9QKlmn9O.exe

pid	process
5004	schtasks.exe
656	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4260	Client-built.exe
Token: SeDebugPrivilege	4868	jV9QKlmn9O.exe

pid	process
4868	jV9QKlmn9O.exe

pid	process
4868	jV9QKlmn9O.exe

pid	process
4868	jV9QKlmn9O.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Client-built.exejV9QKlmn9O.exe

description	pid	process	target process
PID 4260 wrote to memory of 5004	4260	Client-built.exe	schtasks.exe
PID 4260 wrote to memory of 5004	4260	Client-built.exe	schtasks.exe
PID 4260 wrote to memory of 4868	4260	Client-built.exe	jV9QKlmn9O.exe
PID 4260 wrote to memory of 4868	4260	Client-built.exe	jV9QKlmn9O.exe
PID 4868 wrote to memory of 656	4868	jV9QKlmn9O.exe	schtasks.exe
PID 4868 wrote to memory of 656	4868	jV9QKlmn9O.exe	schtasks.exe

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\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4260

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Spotify" /sc ONLOGON /tr "C:\Windows\system32\Client\jV9QKlmn9O.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:5004

C:\Windows\system32\Client\jV9QKlmn9O.exe
"C:\Windows\system32\Client\jV9QKlmn9O.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4868

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Spotify" /sc ONLOGON /tr "C:\Windows\system32\Client\jV9QKlmn9O.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System32\Client\jV9QKlmn9O.exe

Filesize
3.1MB

MD5
4801342f49901b8edeb8a1cb7ce58a5d

SHA1
3f9682bf26530588fc93eb6b1bba40e00dc33320

SHA256
7f9d6d2c44bc60b7bef2e9b8f1ec7bd1eb80a1f5afb70149c43bfe71303379a8

SHA512
37d074b96fe0d729ba2bdd27b976655448df89c2dc5461018e57ff0cb4b26f7a3c2795069feea0831f32b434dfdf5c84df231948064064fd809de21f4260cb6e

Download Submit
memory/4260-0-0x00007FF894C93000-0x00007FF894C95000-memory.dmp

Filesize
8KB

Download
memory/4260-1-0x0000000000E50000-0x0000000001174000-memory.dmp

Filesize
3.1MB

Download
memory/4260-2-0x00007FF894C90000-0x00007FF895751000-memory.dmp

Filesize
10.8MB

Download
memory/4260-9-0x00007FF894C90000-0x00007FF895751000-memory.dmp

Filesize
10.8MB

Download
memory/4868-8-0x00007FF894C90000-0x00007FF895751000-memory.dmp

Filesize
10.8MB

Download
memory/4868-10-0x00007FF894C90000-0x00007FF895751000-memory.dmp

Filesize
10.8MB

Download
memory/4868-11-0x000000001C320000-0x000000001C370000-memory.dmp

Filesize
320KB

Download
memory/4868-12-0x000000001C430000-0x000000001C4E2000-memory.dmp

Filesize
712KB

Download
memory/4868-13-0x00007FF894C90000-0x00007FF895751000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads