quasar | 5e6dd4da06fc90ffca3baf93dd667d0a09a6d7a1fc449936c9a3d85e7187cb46

General

Target

beta_v1.0.4.exe
Size

348KB
MD5

f289d19ee6059d4e46e41cfd359ee221
SHA1

9cf505b34b9b9e26d7f5827f57f6eae80fedd480
SHA256

5e6dd4da06fc90ffca3baf93dd667d0a09a6d7a1fc449936c9a3d85e7187cb46
SHA512

6203aaa554068a3d105f71147948a5391142e5cf897461a8c6de7908790dca3902624fff02a4b13e497be8f67f85e9fd5b03844805828ffc1617b12c5fd78652
SSDEEP

6144:77NHXf500MirO57lIItbtUWUebCWauali:Hd50/5b/Oeb6uEi

Score

10^/10

quasar betatest discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

betatest

C2

94.216.15.177:4782

Mutex

QSR_MUTEX_2Yw0HjfVLWnEPRGNYg

Attributes

encryption_key
SCsaUUCljEt68jZA9Hzs
install_name
betatester_6-24.exe
log_directory
Logs
reconnect_delay
3000
startup_key
betatest
subdirectory
SubDir

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4968-1-0x00000000001E0000-0x000000000023E000-memory.dmp	family_quasar
behavioral2/files/0x0007000000023c7a-11.dat	family_quasar

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

betatester_6-24.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	betatester_6-24.exe

Executes dropped EXE 1 IoCs

Processes:

betatester_6-24.exe

pid	Process
4512	betatester_6-24.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
10	ip-api.com

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 8 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

Processes:

schtasks.exeschtasks.execmd.exechcp.comPING.EXEbeta_v1.0.4.exeschtasks.exebetatester_6-24.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	beta_v1.0.4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	betatester_6-24.exe

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

Processes:

PING.EXE

pid	Process
5024	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

Processes:

PING.EXE

pid	Process
5024	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exeschtasks.exe

pid	Process
2896	schtasks.exe
1924	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

beta_v1.0.4.exebetatester_6-24.exe

description	pid	Process
Token: SeDebugPrivilege	4968	beta_v1.0.4.exe
Token: SeDebugPrivilege	4512	betatester_6-24.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

betatester_6-24.exe

pid	Process
4512	betatester_6-24.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

beta_v1.0.4.exebetatester_6-24.execmd.exe

description	pid	Process	procid_target
PID 4968 wrote to memory of 2896	4968	beta_v1.0.4.exe	84
PID 4968 wrote to memory of 2896	4968	beta_v1.0.4.exe	84
PID 4968 wrote to memory of 2896	4968	beta_v1.0.4.exe	84
PID 4968 wrote to memory of 4512	4968	beta_v1.0.4.exe	86
PID 4968 wrote to memory of 4512	4968	beta_v1.0.4.exe	86
PID 4968 wrote to memory of 4512	4968	beta_v1.0.4.exe	86
PID 4512 wrote to memory of 1924	4512	betatester_6-24.exe	89
PID 4512 wrote to memory of 1924	4512	betatester_6-24.exe	89
PID 4512 wrote to memory of 1924	4512	betatester_6-24.exe	89
PID 4512 wrote to memory of 2984	4512	betatester_6-24.exe	100
PID 4512 wrote to memory of 2984	4512	betatester_6-24.exe	100
PID 4512 wrote to memory of 2984	4512	betatester_6-24.exe	100
PID 4512 wrote to memory of 1772	4512	betatester_6-24.exe	102
PID 4512 wrote to memory of 1772	4512	betatester_6-24.exe	102
PID 4512 wrote to memory of 1772	4512	betatester_6-24.exe	102
PID 1772 wrote to memory of 4568	1772	cmd.exe	104
PID 1772 wrote to memory of 4568	1772	cmd.exe	104
PID 1772 wrote to memory of 4568	1772	cmd.exe	104
PID 1772 wrote to memory of 5024	1772	cmd.exe	105
PID 1772 wrote to memory of 5024	1772	cmd.exe	105
PID 1772 wrote to memory of 5024	1772	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\beta_v1.0.4.exe
"C:\Users\Admin\AppData\Local\Temp\beta_v1.0.4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "betatest" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\beta_v1.0.4.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2896
- C:\Users\Admin\AppData\Roaming\SubDir\betatester_6-24.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\betatester_6-24.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4512
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "betatest" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\betatester_6-24.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1924
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /delete /tn "betatest" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2984
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yLZnXX3F1QrO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1772
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:4568
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 10 localhost
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:5024

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

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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\Temp\yLZnXX3F1QrO.bat

Filesize
271B

MD5
d2ffc14ef07441e85bacf8fd7fa83e1c

SHA1
f2a403a72df1200839beb1ccd86004f2df5aa985

SHA256
81300cacf94d9d57091990d46591cdeca8f2631de6f734e5034411797d89faca

SHA512
1ecbf767bc3db650313a7d75ec2ab97c5e24a3272fb42ba62afb75b1edab06b8bd3bad2c68bf999fd00f59d8948ae04424e9a90ac1e68dccb33c5d45b268393d

Download Submit
C:\Users\Admin\AppData\Roaming\Logs\11-25-~1

Filesize
224B

MD5
380278be2fdb65f3cdadbfd4257c0dc7

SHA1
2c3339c8b7e7e246d42ee74550a4ebb59cd5f109

SHA256
b2436e9b866170795d25376d1e24b97b1eb921005891b5dd6b287c50f36bde24

SHA512
0567e7d42d98e51a89fb6ea77ea787ec6bfdcc23a0971df3026dd26de7e76653c99c7c2298ab682223b37c2339b6ff3c2f3ad56598bf57af045681d377a5a8ab

Download Submit
C:\Users\Admin\AppData\Roaming\SubDir\betatester_6-24.exe

Filesize
348KB

MD5
f289d19ee6059d4e46e41cfd359ee221

SHA1
9cf505b34b9b9e26d7f5827f57f6eae80fedd480

SHA256
5e6dd4da06fc90ffca3baf93dd667d0a09a6d7a1fc449936c9a3d85e7187cb46

SHA512
6203aaa554068a3d105f71147948a5391142e5cf897461a8c6de7908790dca3902624fff02a4b13e497be8f67f85e9fd5b03844805828ffc1617b12c5fd78652

Download Submit
memory/4512-17-0x0000000006490000-0x000000000649A000-memory.dmp

Filesize
40KB

Download
memory/4512-18-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/4512-24-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/4512-15-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/4512-14-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/4968-3-0x0000000004B60000-0x0000000004BF2000-memory.dmp

Filesize
584KB

Download
memory/4968-13-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/4968-7-0x0000000005E60000-0x0000000005E9C000-memory.dmp

Filesize
240KB

Download
memory/4968-6-0x0000000005920000-0x0000000005932000-memory.dmp

Filesize
72KB

Download
memory/4968-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/4968-4-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/4968-2-0x0000000005010000-0x00000000055B4000-memory.dmp

Filesize
5.6MB

Download
memory/4968-5-0x0000000004C00000-0x0000000004C66000-memory.dmp

Filesize
408KB

Download
memory/4968-1-0x00000000001E0000-0x000000000023E000-memory.dmp

Filesize
376KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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