quasar | 7ef4d0236c81894178a6cfc6c27920217bea42a3602ad7a6002834718ba7b93c

General

Target

JJSPLOIT.V2.exe
Size

3.1MB
MD5

d4a776ea55e24d3124a6e0759fb0ac44
SHA1

f5932d234baccc992ca910ff12044e8965229852
SHA256

7ef4d0236c81894178a6cfc6c27920217bea42a3602ad7a6002834718ba7b93c
SHA512

ba9127f7f84e55a37e4eb1dc1a50d10ef044f0b24a23d451187c8d1dedec26d3a37cf78e8763b351ef1e492e26b1ef9b28fc2331591ce1b53c3d76369d100f4b
SSDEEP

49152:gvvL82kyaNnwxPlllSWxc9LpQXmrRJ6cbR3LoGdJTHHB72eh2NT:gvD82kyaNnwxPlllSWa9LpQXmrRJ6m

Score

10^/10

quasar roblox executor discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

ROBLOX EXECUTOR

C2

192.168.50.1:4782

10.0.0.113:4782

LETSQOOO-62766.portmap.host:62766

89.10.178.51:4782

Mutex

90faf922-159d-4166-b661-4ba16af8650e

Attributes

encryption_key
FFEE70B90F5EBED6085600C989F1D6D56E2DEC26
install_name
windows 3543.exe
log_directory
roblox executor
reconnect_delay
3000
startup_key
windows background updater
subdirectory
windows updater

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/3744-1-0x0000000000D30000-0x0000000001054000-memory.dmp	family_quasar
behavioral2/files/0x000a000000023b82-6.dat	family_quasar

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	windows 3543.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	windows 3543.exe

Executes dropped EXE 3 IoCs

pid	Process
4628	windows 3543.exe
4784	windows 3543.exe
5064	windows 3543.exe

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

System Information Discovery
T1082

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4028	PING.EXE
3952	PING.EXE

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
3952	PING.EXE
4028	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1780	schtasks.exe
2360	schtasks.exe
3504	schtasks.exe
4452	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3744	JJSPLOIT.V2.exe
Token: SeDebugPrivilege	4628	windows 3543.exe
Token: SeDebugPrivilege	4784	windows 3543.exe
Token: SeDebugPrivilege	5064	windows 3543.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4628	windows 3543.exe
4784	windows 3543.exe
5064	windows 3543.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 2360	3744	JJSPLOIT.V2.exe	82
PID 3744 wrote to memory of 2360	3744	JJSPLOIT.V2.exe	82
PID 3744 wrote to memory of 4628	3744	JJSPLOIT.V2.exe	84
PID 3744 wrote to memory of 4628	3744	JJSPLOIT.V2.exe	84
PID 4628 wrote to memory of 3504	4628	windows 3543.exe	85
PID 4628 wrote to memory of 3504	4628	windows 3543.exe	85
PID 4628 wrote to memory of 4644	4628	windows 3543.exe	96
PID 4628 wrote to memory of 4644	4628	windows 3543.exe	96
PID 4644 wrote to memory of 1836	4644	cmd.exe	98
PID 4644 wrote to memory of 1836	4644	cmd.exe	98
PID 4644 wrote to memory of 3952	4644	cmd.exe	99
PID 4644 wrote to memory of 3952	4644	cmd.exe	99
PID 4644 wrote to memory of 4784	4644	cmd.exe	100
PID 4644 wrote to memory of 4784	4644	cmd.exe	100
PID 4784 wrote to memory of 4452	4784	windows 3543.exe	101
PID 4784 wrote to memory of 4452	4784	windows 3543.exe	101
PID 4784 wrote to memory of 2356	4784	windows 3543.exe	103
PID 4784 wrote to memory of 2356	4784	windows 3543.exe	103
PID 2356 wrote to memory of 984	2356	cmd.exe	105
PID 2356 wrote to memory of 984	2356	cmd.exe	105
PID 2356 wrote to memory of 4028	2356	cmd.exe	106
PID 2356 wrote to memory of 4028	2356	cmd.exe	106
PID 2356 wrote to memory of 5064	2356	cmd.exe	107
PID 2356 wrote to memory of 5064	2356	cmd.exe	107
PID 5064 wrote to memory of 1780	5064	windows 3543.exe	108
PID 5064 wrote to memory of 1780	5064	windows 3543.exe	108

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\JJSPLOIT.V2.exe
"C:\Users\Admin\AppData\Local\Temp\JJSPLOIT.V2.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "windows background updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2360
- C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe
  "C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4628
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "windows background updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3504
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sQ0Gsn5bopFq.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4644
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:1836
  - - C:\Windows\system32\PING.EXE
      ping -n 10 localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:3952
  - - C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe
      "C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4784
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "windows background updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe" /rl HIGHEST /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4452
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LpwMSI707VTe.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2356
      - C:\Windows\system32\chcp.com
        
        chcp 65001
        6⤵
        
        PID:984
      - C:\Windows\system32\PING.EXE
        
        ping -n 10 localhost
        6⤵
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:4028
      - C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe
        
        "C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:5064
        
        C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "windows background updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe" /rl HIGHEST /f
        7⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:1780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\windows 3543.exe.log

Filesize
2KB

MD5
8f0271a63446aef01cf2bfc7b7c7976b

SHA1
b70dad968e1dda14b55ad361b7fd4ef9ab6c06d7

SHA256
da740d78ae00b72cb3710d1a1256dc6431550965d20afaa65e5d5860a4748e8c

SHA512
78a403c69f1284b7dd41527019f3eede3512a5e4d439d846eca83557b741ca37bcf56c412f3e577b9dd4cfa5a6d6210961215f14cb271b143f6eb94f69389cf5

Download Submit
C:\Users\Admin\AppData\Local\Temp\LpwMSI707VTe.bat

Filesize
222B

MD5
26f0cc6731466944675fe42aea10262b

SHA1
f095a2373724d1ec5b48459ebb2de737cf31653f

SHA256
9e3bb97dbe88d7f6906d81d3725a008dfa4c5c9fe6d4d76280c1ef1fcd1220ca

SHA512
7d1c75811ee99ff6a4e414acde2193a3ede7967cbafd23ef39c127079a0f2e375058641209c57391ebace8f29d8eddd046bcb0df0c1ecaf587d1c517ccf6c527

Download Submit
C:\Users\Admin\AppData\Local\Temp\sQ0Gsn5bopFq.bat

Filesize
222B

MD5
d903e51c9cb511edd535c19d4e8ac5c0

SHA1
0b68e23d1777a4d3d5e8ba435d065b953ef591b7

SHA256
dbc70f514189cc73f83253c5748ea66d32e526eb5eca9fd23674845f30358a12

SHA512
4fe84b7695ea66095407c9a79073b0499dd18c0cdc4ef9b340316881e97230ecbfce88b7e9cc00a47b167561acf68bd7c13ccaba243c46d179427a79f306e6c6

Download Submit
C:\Users\Admin\AppData\Roaming\windows updater\windows 3543.exe

Filesize
3.1MB

MD5
d4a776ea55e24d3124a6e0759fb0ac44

SHA1
f5932d234baccc992ca910ff12044e8965229852

SHA256
7ef4d0236c81894178a6cfc6c27920217bea42a3602ad7a6002834718ba7b93c

SHA512
ba9127f7f84e55a37e4eb1dc1a50d10ef044f0b24a23d451187c8d1dedec26d3a37cf78e8763b351ef1e492e26b1ef9b28fc2331591ce1b53c3d76369d100f4b

Download Submit
memory/3744-1-0x0000000000D30000-0x0000000001054000-memory.dmp

Filesize
3.1MB

Download
memory/3744-2-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3744-9-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3744-0-0x00007FFB85243000-0x00007FFB85245000-memory.dmp

Filesize
8KB

Download
memory/4628-11-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/4628-14-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/4628-19-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/4628-13-0x000000001C710000-0x000000001C7C2000-memory.dmp

Filesize
712KB

Download
memory/4628-12-0x000000001BD70000-0x000000001BDC0000-memory.dmp

Filesize
320KB

Download
memory/4628-10-0x00007FFB85240000-0x00007FFB85D01000-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