quasar | 088023dee5807788786ad2707fa34ae3422654ecb0cb9efbc1eb268cec958ff0

General

Target

bcf82013e39cef4310eb312625ab8598.exe
Size

157KB
MD5

bcf82013e39cef4310eb312625ab8598
SHA1

96f423ba66892855a6d67e96a23bdba885f63944
SHA256

088023dee5807788786ad2707fa34ae3422654ecb0cb9efbc1eb268cec958ff0
SHA512

1cddb94d23d6387dcb0650a74ae2028e6a9744788ce7fe5f4bb98afa41c9670e7097fe1be9b323b2c061742a2c026ea710ff294a3b169085fecdb417beb95ac3
SSDEEP

3072:GfckI9Z12hDq4SWe06jQ75GKqEcjk0XkhFBx4:K0Z12jjM400Tw

Score

10^/10

quasar games persistence spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Games

C2

services18.dns.army:7000

ss1999.64-b.it:7000

Mutex

5EwVZpKkbJ5fq0j9og

Attributes

encryption_key
O6mxl5VNcg9uGSOey4nY
install_name
Instalation Rep.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Firefox Update
subdirectory
Instalation

Signatures

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

Quasar payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3132-1-0x0000000000D80000-0x0000000000DAE000-memory.dmp	family_quasar
behavioral2/memory/3132-2-0x0000000005720000-0x000000000576C000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe	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:

Instalation Rep.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	Instalation Rep.exe

Executes dropped EXE 1 IoCs

Processes:

Instalation Rep.exe

pid process

3148 Instalation Rep.exe

pid	process
3148	Instalation Rep.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

bcf82013e39cef4310eb312625ab8598.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Firefox Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bcf82013e39cef4310eb312625ab8598.exe\""	bcf82013e39cef4310eb312625ab8598.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

82 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

512 schtasks.exe
1152 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3096 PING.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bcf82013e39cef4310eb312625ab8598.exeInstalation Rep.exe

description pid process

Token: SeDebugPrivilege 3132 bcf82013e39cef4310eb312625ab8598.exe
Token: SeDebugPrivilege 3148 Instalation Rep.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Instalation Rep.exe

pid process

3148 Instalation Rep.exe

flow	ioc
82	ip-api.com

pid	process
512	schtasks.exe
1152	schtasks.exe

pid	process
3096	PING.EXE

description	pid	process
Token: SeDebugPrivilege	3132	bcf82013e39cef4310eb312625ab8598.exe
Token: SeDebugPrivilege	3148	Instalation Rep.exe

pid	process
3148	Instalation Rep.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

bcf82013e39cef4310eb312625ab8598.exeInstalation Rep.execmd.exe

description	pid	process	target process
PID 3132 wrote to memory of 512	3132	bcf82013e39cef4310eb312625ab8598.exe	schtasks.exe
PID 3132 wrote to memory of 512	3132	bcf82013e39cef4310eb312625ab8598.exe	schtasks.exe
PID 3132 wrote to memory of 512	3132	bcf82013e39cef4310eb312625ab8598.exe	schtasks.exe
PID 3132 wrote to memory of 3148	3132	bcf82013e39cef4310eb312625ab8598.exe	Instalation Rep.exe
PID 3132 wrote to memory of 3148	3132	bcf82013e39cef4310eb312625ab8598.exe	Instalation Rep.exe
PID 3132 wrote to memory of 3148	3132	bcf82013e39cef4310eb312625ab8598.exe	Instalation Rep.exe
PID 3148 wrote to memory of 1152	3148	Instalation Rep.exe	schtasks.exe
PID 3148 wrote to memory of 1152	3148	Instalation Rep.exe	schtasks.exe
PID 3148 wrote to memory of 1152	3148	Instalation Rep.exe	schtasks.exe
PID 3148 wrote to memory of 4640	3148	Instalation Rep.exe	cmd.exe
PID 3148 wrote to memory of 4640	3148	Instalation Rep.exe	cmd.exe
PID 3148 wrote to memory of 4640	3148	Instalation Rep.exe	cmd.exe
PID 4640 wrote to memory of 4484	4640	cmd.exe	chcp.com
PID 4640 wrote to memory of 4484	4640	cmd.exe	chcp.com
PID 4640 wrote to memory of 4484	4640	cmd.exe	chcp.com
PID 4640 wrote to memory of 3096	4640	cmd.exe	PING.EXE
PID 4640 wrote to memory of 3096	4640	cmd.exe	PING.EXE
PID 4640 wrote to memory of 3096	4640	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe
"C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3132

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Firefox Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:512

C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe
"C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe"
2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3148

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Firefox Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:1152

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yrLIMI8veaKB.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:4640

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:4484

C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
4⤵
- Runs ping.exe
PID:3096

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:4180

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\yrLIMI8veaKB.bat
Filesize
221B

MD5
2cf01e9d86ebd0e30b6e8a26f169422e

SHA1
c6ab9f2d51252057c590ec0a28da175a95ec45cc

SHA256
c4a23b3de8331112447c45fe4007d4d5e9895b7563efbe3aefe7be78bfbf839c

SHA512
d37b196e011383309d7cf9051a61101b1fafe5fb1710095a70024446e0f413f0f284dbaf0ce5f214ad6afb933c01eb1666aa0b46aa5ace9fb7d567e24a1edefa

Download Submit
C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe
Filesize
157KB

MD5
bcf82013e39cef4310eb312625ab8598

SHA1
96f423ba66892855a6d67e96a23bdba885f63944

SHA256
088023dee5807788786ad2707fa34ae3422654ecb0cb9efbc1eb268cec958ff0

SHA512
1cddb94d23d6387dcb0650a74ae2028e6a9744788ce7fe5f4bb98afa41c9670e7097fe1be9b323b2c061742a2c026ea710ff294a3b169085fecdb417beb95ac3

Download Submit
memory/3132-8-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download
memory/3132-9-0x0000000008270000-0x0000000008282000-memory.dmp

Filesize
72KB

Download
memory/3132-4-0x0000000007D90000-0x0000000007E22000-memory.dmp

Filesize
584KB

Download
memory/3132-5-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/3132-6-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download
memory/3132-7-0x0000000007CF0000-0x0000000007D56000-memory.dmp

Filesize
408KB

Download
memory/3132-0-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/3132-3-0x00000000082A0000-0x0000000008844000-memory.dmp

Filesize
5.6MB

Download
memory/3132-10-0x0000000008F70000-0x0000000008FAC000-memory.dmp

Filesize
240KB

Download
memory/3132-2-0x0000000005720000-0x000000000576C000-memory.dmp

Filesize
304KB

Download
memory/3132-1-0x0000000000D80000-0x0000000000DAE000-memory.dmp

Filesize
184KB

Download
memory/3132-18-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/3148-16-0x0000000005450000-0x0000000005460000-memory.dmp

Filesize
64KB

Download
memory/3148-20-0x0000000008F60000-0x0000000008F6A000-memory.dmp

Filesize
40KB

Download
memory/3148-15-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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