quasar | cb731802d3cd29da2c01ffbb8c8ed4ef7de9d91c133b69b974583bede6bfd740

General

Target

SGVPClientUsers.exe
Size

3.1MB
MD5

2fcfe990de818ff742c6723b8c6e0d33
SHA1

9d42cce564dcfa27b2c99450f54ba36d4b6eecaf
SHA256

cb731802d3cd29da2c01ffbb8c8ed4ef7de9d91c133b69b974583bede6bfd740
SHA512

4f20a27817de94a07071960abe0123277c0607a26de709e2ade201597df71d8c2eec7da353efba94dc6a8369b89db4caeaf9505d02b90dc30c37010a885c3613
SSDEEP

49152:PvXz92YpaQI6oPZlhP3Reybewoklwuv1JHloGGWTHHB72eh2NT:PvD92YpaQI6oPZlhP3YybewoklwuV

Score

10^/10

quasar sgvp discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

SGVP

C2

192.168.1.9:4782

150.129.206.176:4782

Ai-Sgvp-33452.portmap.host:33452

Mutex

a35ec7b7-5a95-4207-8f25-7af0a7847fa5

Attributes

encryption_key
09BBDA8FF0524296F02F8F81158F33C0AA74D487
install_name
User Application Data.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windowns Client Startup
subdirectory
Quasar

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/2604-1-0x0000000000A50000-0x0000000000D74000-memory.dmp	family_quasar
behavioral2/files/0x0009000000023bd3-6.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	User Application Data.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	User Application Data.exe

Executes dropped EXE 3 IoCs

pid	Process
2236	User Application Data.exe
1748	User Application Data.exe
3680	User Application Data.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
5040	PING.EXE
4928	PING.EXE

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
5040	PING.EXE
4928	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
2800	schtasks.exe
3676	schtasks.exe
4988	schtasks.exe
1952	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	SGVPClientUsers.exe
Token: SeDebugPrivilege	2236	User Application Data.exe
Token: SeDebugPrivilege	1748	User Application Data.exe
Token: SeDebugPrivilege	3680	User Application Data.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2236	User Application Data.exe
1748	User Application Data.exe
3680	User Application Data.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2800	2604	SGVPClientUsers.exe	82
PID 2604 wrote to memory of 2800	2604	SGVPClientUsers.exe	82
PID 2604 wrote to memory of 2236	2604	SGVPClientUsers.exe	84
PID 2604 wrote to memory of 2236	2604	SGVPClientUsers.exe	84
PID 2236 wrote to memory of 3676	2236	User Application Data.exe	85
PID 2236 wrote to memory of 3676	2236	User Application Data.exe	85
PID 2236 wrote to memory of 5112	2236	User Application Data.exe	96
PID 2236 wrote to memory of 5112	2236	User Application Data.exe	96
PID 5112 wrote to memory of 2504	5112	cmd.exe	98
PID 5112 wrote to memory of 2504	5112	cmd.exe	98
PID 5112 wrote to memory of 5040	5112	cmd.exe	99
PID 5112 wrote to memory of 5040	5112	cmd.exe	99
PID 5112 wrote to memory of 1748	5112	cmd.exe	100
PID 5112 wrote to memory of 1748	5112	cmd.exe	100
PID 1748 wrote to memory of 4988	1748	User Application Data.exe	101
PID 1748 wrote to memory of 4988	1748	User Application Data.exe	101
PID 1748 wrote to memory of 1808	1748	User Application Data.exe	103
PID 1748 wrote to memory of 1808	1748	User Application Data.exe	103
PID 1808 wrote to memory of 724	1808	cmd.exe	105
PID 1808 wrote to memory of 724	1808	cmd.exe	105
PID 1808 wrote to memory of 4928	1808	cmd.exe	106
PID 1808 wrote to memory of 4928	1808	cmd.exe	106
PID 1808 wrote to memory of 3680	1808	cmd.exe	107
PID 1808 wrote to memory of 3680	1808	cmd.exe	107
PID 3680 wrote to memory of 1952	3680	User Application Data.exe	108
PID 3680 wrote to memory of 1952	3680	User Application Data.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\SGVPClientUsers.exe
"C:\Users\Admin\AppData\Local\Temp\SGVPClientUsers.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2800
- C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe
  "C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3676
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\d6LyFYf46o6v.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5112
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:2504
  - - C:\Windows\system32\PING.EXE
      ping -n 10 localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:5040
  - - C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe
      "C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1748
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe" /rl HIGHEST /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4988
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HtsMSQohXQOC.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1808
      - C:\Windows\system32\chcp.com
        
        chcp 65001
        6⤵
        
        PID:724
      - C:\Windows\system32\PING.EXE
        
        ping -n 10 localhost
        6⤵
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:4928
      - C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe
        
        "C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3680
        
        C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe" /rl HIGHEST /f
        7⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:1952

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\User Application Data.exe.log

Filesize
2KB

MD5
8f0271a63446aef01cf2bfc7b7c7976b

SHA1
b70dad968e1dda14b55ad361b7fd4ef9ab6c06d7

SHA256
da740d78ae00b72cb3710d1a1256dc6431550965d20afaa65e5d5860a4748e8c

SHA512
78a403c69f1284b7dd41527019f3eede3512a5e4d439d846eca83557b741ca37bcf56c412f3e577b9dd4cfa5a6d6210961215f14cb271b143f6eb94f69389cf5

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

Filesize
222B

MD5
305448ec48e6796433ce5f30e87c1801

SHA1
aa1d34a33dec764ec44463cb196f1b983dfd18c0

SHA256
e504582ccedf9083c58dfe9f3130a51eb813a72717abeb8b3ebaf1be3af2e3ee

SHA512
bae37ae4e006ff24bf829cdfc1e1a0b89caf0344230b01208f4a715b697045178b855de43217d0038ba77d19170c8922c67198693a17db504cc207b35d17f74d

Download Submit
C:\Users\Admin\AppData\Local\Temp\d6LyFYf46o6v.bat

Filesize
222B

MD5
6cfb0d876988e432ddb4dd58816469f9

SHA1
bab3f0916f3558ae7836b741b90a8ba6498decb3

SHA256
1709b9071c834a0a937f379d3a2b0847f9f0abf02839ce61a0b606f150177ab1

SHA512
2f588a8658c0fd187b14dc9eb367c1c384e4113bc86d852c8e8939ed46c03a3f5a6e60d0fb562bfae255718e54cc5aabfce2b82362405637e57d787cc6957b9e

Download Submit
C:\Users\Admin\AppData\Roaming\Quasar\User Application Data.exe

Filesize
3.1MB

MD5
2fcfe990de818ff742c6723b8c6e0d33

SHA1
9d42cce564dcfa27b2c99450f54ba36d4b6eecaf

SHA256
cb731802d3cd29da2c01ffbb8c8ed4ef7de9d91c133b69b974583bede6bfd740

SHA512
4f20a27817de94a07071960abe0123277c0607a26de709e2ade201597df71d8c2eec7da353efba94dc6a8369b89db4caeaf9505d02b90dc30c37010a885c3613

Download Submit
memory/2236-11-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/2236-10-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/2236-12-0x0000000002900000-0x0000000002950000-memory.dmp

Filesize
320KB

Download
memory/2236-13-0x000000001D4D0000-0x000000001D582000-memory.dmp

Filesize
712KB

Download
memory/2236-14-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/2236-20-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/2604-0-0x00007FFB39E23000-0x00007FFB39E25000-memory.dmp

Filesize
8KB

Download
memory/2604-9-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/2604-2-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/2604-1-0x0000000000A50000-0x0000000000D74000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads