quasar | c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0

Analysis

max time kernel
124s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 16:03

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General

Target

c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe
Size

551B
MD5

2ffd76a01df2c01b424688a63c8f769e
SHA1

2cabb8e5854db69ae9d836deea7c554df6404d10
SHA256

c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0
SHA512

6ce5c376b98960ce6c318c7f958f5b042b15282f12f53e899449330354273d49368c32fa672e2199d4eeb8e13bfb7dcdf0d90c314a8c9559534f4c1fb500883e

Score

10^/10

quasar 2026 discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

2026

win32updatess.DUCKDNS.ORG:2

Mutex

b70adc1c-122d-4b90-9f59-304d0ab81cd5

Attributes

encryption_key
CE02DB1ED3D345B2461CC2276CDEEDF58EF19723
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

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

Quasar payload 5 IoCs

resource	yara_rule
behavioral1/memory/2052-19-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2052-24-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2052-22-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2052-18-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/2052-26-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2808	c.exe

Loads dropped DLL 1 IoCs

pid	Process
2772	c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2052	2808	c.exe	31

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

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

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2244	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2244	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2052	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2052	RegAsm.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2808	2772	c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe	30
PID 2772 wrote to memory of 2808	2772	c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe	30
PID 2772 wrote to memory of 2808	2772	c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe	30
PID 2772 wrote to memory of 2808	2772	c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe	30
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2808 wrote to memory of 2052	2808	c.exe	31
PID 2052 wrote to memory of 2164	2052	RegAsm.exe	33
PID 2052 wrote to memory of 2164	2052	RegAsm.exe	33
PID 2052 wrote to memory of 2164	2052	RegAsm.exe	33
PID 2052 wrote to memory of 2164	2052	RegAsm.exe	33
PID 2164 wrote to memory of 3036	2164	cmd.exe	35
PID 2164 wrote to memory of 3036	2164	cmd.exe	35
PID 2164 wrote to memory of 3036	2164	cmd.exe	35
PID 2164 wrote to memory of 3036	2164	cmd.exe	35
PID 2164 wrote to memory of 2244	2164	cmd.exe	36
PID 2164 wrote to memory of 2244	2164	cmd.exe	36
PID 2164 wrote to memory of 2244	2164	cmd.exe	36
PID 2164 wrote to memory of 2244	2164	cmd.exe	36
PID 2164 wrote to memory of 1992	2164	cmd.exe	37
PID 2164 wrote to memory of 1992	2164	cmd.exe	37
PID 2164 wrote to memory of 1992	2164	cmd.exe	37
PID 2164 wrote to memory of 1992	2164	cmd.exe	37
PID 2164 wrote to memory of 1992	2164	cmd.exe	37
PID 2164 wrote to memory of 1992	2164	cmd.exe	37
PID 2164 wrote to memory of 1992	2164	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe
"C:\Users\Admin\AppData\Local\Temp\c196286c4abe88a9242b9f619c261571a658244e4e77272e33dd2527606087a0.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\c.exe
  "C:\Users\Admin\AppData\Local\Temp\c.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2808
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2052
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\7hVp6UJsZ13g.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2164
    - - C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3036
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping -n 10 localhost
        5⤵
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:2244
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\7hVp6UJsZ13g.bat

Filesize
215B

MD5
2992a22592d5e72f8e00bfa6d6f08435

SHA1
295e8a63f917cfd7b89adb2dca02155cf6ec969a

SHA256
116b6658f7627147f6dbf6d1719e9d2a6aabd0cb8c688fc7647e8edc02eb23ec

SHA512
62cf583f61112190f34c41203e629fba86039c3c779e883bf246379b96df1ab6315aaf7500cd8fdf1c5fb95a9b89342c2dd8bdec69831b0da361e9e987dc570e

Download Submit
\Users\Admin\AppData\Local\Temp\c.exe

Filesize
3.3MB

MD5
85f734c7ff103995e9ffa75bf661ef4f

SHA1
577f8c3cf3c1c78c7f227508d764c6f9c41d4e5c

SHA256
12ec384e29c8c0f15c05583dd84dbe719c454d70cafca9ee3de8dd2fa51f05ee

SHA512
c273bfbd0ffda0625ba8c2b91af6a105cc734ccd544f20f7d43f75328c34585f643bb2c9158d4107ac3404ad3278107200c984a3694359230b55999a9de026ac

Download Submit
memory/1992-38-0x0000000000AE0000-0x0000000000AF2000-memory.dmp

Filesize
72KB

Download
memory/2052-18-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2052-17-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2052-26-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2052-22-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2052-24-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2052-19-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2052-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2052-16-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/2808-15-0x000000000AC20000-0x000000000AF46000-memory.dmp

Filesize
3.1MB

Download
memory/2808-14-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-13-0x00000000740AE000-0x00000000740AF000-memory.dmp

Filesize
4KB

Download
memory/2808-12-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2808-9-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2808-10-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-11-0x000000000C960000-0x000000000CC94000-memory.dmp

Filesize
3.2MB

Download
memory/2808-27-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-8-0x0000000000860000-0x0000000000BBA000-memory.dmp

Filesize
3.4MB

Download
memory/2808-7-0x00000000740AE000-0x00000000740AF000-memory.dmp

Filesize
4KB

Download