quasar | 4b857bc454edef7fa460fecb36f676fa38bab8b3304f3f07d12b9777fa0b68cb

Analysis

max time kernel
138s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
18-05-2024 06:08

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General

Target

PlutoBETA.V2.exe
Size

3.1MB
MD5

1b84762faebd8469f686f703cbaef7b9
SHA1

41e135a8a2a9525e09a2303055430e36d95780cd
SHA256

4b857bc454edef7fa460fecb36f676fa38bab8b3304f3f07d12b9777fa0b68cb
SHA512

da9482a2ef6fbe659afff4c5a0d1911145bb93be47dd5a714e4e1c24802f1e9d9669f5a209665a7da752e56d2c82c41e48c5bd951d26a2cd763fc8a62d4e703c
SSDEEP

49152:PvylL26AaNeWgPhlmVqvMQ7XSKO1RboGreTHHB72eh2NT:PvqL26AaNeWgPhlmVqkQ7XSKO1l

Score

10^/10

quasar poofnrico spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

PoofNRico

nahchris-49021.portmap.host:49021

Mutex

1a5d095f-2c59-4b3f-b053-5bd928b2e541

Attributes

encryption_key
ADBAB4BC16998E7E1913E54C27829FE47C72BE6D
install_name
PlutoBETAv2.exe
log_directory
Logs
reconnect_delay
3000
startup_key
DiscordUpdater.exe
subdirectory
PlutoBETAv2

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4560-0-0x0000000000CE0000-0x0000000001004000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\PlutoBETAv2\PlutoBETAv2.exe	family_quasar

Executes dropped EXE 1 IoCs

Processes:

PlutoBETAv2.exe

pid process

4228 PlutoBETAv2.exe
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

3612 schtasks.exe
3136 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PlutoBETA.V2.exePlutoBETAv2.exe

description pid process

Token: SeDebugPrivilege 4560 PlutoBETA.V2.exe
Token: SeDebugPrivilege 4228 PlutoBETAv2.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

PlutoBETAv2.exe

pid process

4228 PlutoBETAv2.exe
4228 PlutoBETAv2.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

PlutoBETAv2.exe

pid process

4228 PlutoBETAv2.exe
4228 PlutoBETAv2.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PlutoBETAv2.exe

pid process

4228 PlutoBETAv2.exe

pid	process
4228	PlutoBETAv2.exe

pid	process
3612	schtasks.exe
3136	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4560	PlutoBETA.V2.exe
Token: SeDebugPrivilege	4228	PlutoBETAv2.exe

pid	process
4228	PlutoBETAv2.exe
4228	PlutoBETAv2.exe

pid	process
4228	PlutoBETAv2.exe
4228	PlutoBETAv2.exe

pid	process
4228	PlutoBETAv2.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

PlutoBETA.V2.exePlutoBETAv2.exe

description	pid	process	target process
PID 4560 wrote to memory of 3612	4560	PlutoBETA.V2.exe	schtasks.exe
PID 4560 wrote to memory of 3612	4560	PlutoBETA.V2.exe	schtasks.exe
PID 4560 wrote to memory of 4228	4560	PlutoBETA.V2.exe	PlutoBETAv2.exe
PID 4560 wrote to memory of 4228	4560	PlutoBETA.V2.exe	PlutoBETAv2.exe
PID 4228 wrote to memory of 3136	4228	PlutoBETAv2.exe	schtasks.exe
PID 4228 wrote to memory of 3136	4228	PlutoBETAv2.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\PlutoBETA.V2.exe
"C:\Users\Admin\AppData\Local\Temp\PlutoBETA.V2.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4560

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "DiscordUpdater.exe" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\PlutoBETAv2\PlutoBETAv2.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:3612

C:\Users\Admin\AppData\Roaming\PlutoBETAv2\PlutoBETAv2.exe
"C:\Users\Admin\AppData\Roaming\PlutoBETAv2\PlutoBETAv2.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:4228

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "DiscordUpdater.exe" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\PlutoBETAv2\PlutoBETAv2.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:3136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\PlutoBETAv2\PlutoBETAv2.exe

Filesize
3.1MB

MD5
1b84762faebd8469f686f703cbaef7b9

SHA1
41e135a8a2a9525e09a2303055430e36d95780cd

SHA256
4b857bc454edef7fa460fecb36f676fa38bab8b3304f3f07d12b9777fa0b68cb

SHA512
da9482a2ef6fbe659afff4c5a0d1911145bb93be47dd5a714e4e1c24802f1e9d9669f5a209665a7da752e56d2c82c41e48c5bd951d26a2cd763fc8a62d4e703c

Download Submit
memory/4228-9-0x00007FF862CD0000-0x00007FF863791000-memory.dmp

Filesize
10.8MB

Download
memory/4228-10-0x00007FF862CD0000-0x00007FF863791000-memory.dmp

Filesize
10.8MB

Download
memory/4228-11-0x000000001B650000-0x000000001B6A0000-memory.dmp

Filesize
320KB

Download
memory/4228-12-0x000000001B760000-0x000000001B812000-memory.dmp

Filesize
712KB

Download
memory/4228-15-0x000000001B6E0000-0x000000001B6F2000-memory.dmp

Filesize
72KB

Download
memory/4228-16-0x000000001C160000-0x000000001C19C000-memory.dmp

Filesize
240KB

Download
memory/4228-17-0x00007FF862CD0000-0x00007FF863791000-memory.dmp

Filesize
10.8MB

Download
memory/4560-0-0x0000000000CE0000-0x0000000001004000-memory.dmp

Filesize
3.1MB

Download
memory/4560-1-0x00007FF862CD3000-0x00007FF862CD5000-memory.dmp

Filesize
8KB

Download
memory/4560-2-0x00007FF862CD0000-0x00007FF863791000-memory.dmp

Filesize
10.8MB

Download
memory/4560-8-0x00007FF862CD0000-0x00007FF863791000-memory.dmp

Filesize
10.8MB

Download