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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2856-1-0x0000000001300000-0x000000000135E000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\SubDir\betatester_6-24.exe	family_quasar
behavioral1/memory/2368-9-0x0000000000360000-0x00000000003BE000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

Processes:

betatester_6-24.exe

pid process

2368 betatester_6-24.exe
Loads dropped DLL 1 IoCs

Processes:

beta_v1.0.4.exe

pid process

2856 beta_v1.0.4.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

2 ip-api.com

pid	process
2368	betatester_6-24.exe

pid	process
2856	beta_v1.0.4.exe

flow	ioc
2	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 4 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.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	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

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

2756 schtasks.exe
320 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

beta_v1.0.4.exebetatester_6-24.exe

description pid process

Token: SeDebugPrivilege 2856 beta_v1.0.4.exe
Token: SeDebugPrivilege 2368 betatester_6-24.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

betatester_6-24.exe

pid process

2368 betatester_6-24.exe

pid	process
2756	schtasks.exe
320	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	2856	beta_v1.0.4.exe
Token: SeDebugPrivilege	2368	betatester_6-24.exe

pid	process
2368	betatester_6-24.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

beta_v1.0.4.exebetatester_6-24.exe

description	pid	process	target process
PID 2856 wrote to memory of 2756	2856	beta_v1.0.4.exe	schtasks.exe
PID 2856 wrote to memory of 2756	2856	beta_v1.0.4.exe	schtasks.exe
PID 2856 wrote to memory of 2756	2856	beta_v1.0.4.exe	schtasks.exe
PID 2856 wrote to memory of 2756	2856	beta_v1.0.4.exe	schtasks.exe
PID 2856 wrote to memory of 2368	2856	beta_v1.0.4.exe	betatester_6-24.exe
PID 2856 wrote to memory of 2368	2856	beta_v1.0.4.exe	betatester_6-24.exe
PID 2856 wrote to memory of 2368	2856	beta_v1.0.4.exe	betatester_6-24.exe
PID 2856 wrote to memory of 2368	2856	beta_v1.0.4.exe	betatester_6-24.exe
PID 2368 wrote to memory of 320	2368	betatester_6-24.exe	schtasks.exe
PID 2368 wrote to memory of 320	2368	betatester_6-24.exe	schtasks.exe
PID 2368 wrote to memory of 320	2368	betatester_6-24.exe	schtasks.exe
PID 2368 wrote to memory of 320	2368	betatester_6-24.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\beta_v1.0.4.exe
"C:\Users\Admin\AppData\Local\Temp\beta_v1.0.4.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2856
- 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:2756
- C:\Users\Admin\AppData\Roaming\SubDir\betatester_6-24.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\betatester_6-24.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2368
- - 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:320

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
348KB

MD5
f289d19ee6059d4e46e41cfd359ee221

SHA1
9cf505b34b9b9e26d7f5827f57f6eae80fedd480

SHA256
5e6dd4da06fc90ffca3baf93dd667d0a09a6d7a1fc449936c9a3d85e7187cb46

SHA512
6203aaa554068a3d105f71147948a5391142e5cf897461a8c6de7908790dca3902624fff02a4b13e497be8f67f85e9fd5b03844805828ffc1617b12c5fd78652

Download Submit
memory/2368-11-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2368-10-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2368-9-0x0000000000360000-0x00000000003BE000-memory.dmp

Filesize
376KB

Download
memory/2856-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2856-1-0x0000000001300000-0x000000000135E000-memory.dmp

Filesize
376KB

Download
memory/2856-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2856-12-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads