quasar | 6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b

General

Target

6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe
Size

3.2MB
MD5

dbdfb779556b39424d70176ff2bc5c76
SHA1

ea818c26ffcc9cd2cc1524573b1aadeea9f22edd
SHA256

6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b
SHA512

6064b0566f97d07974d660ebe1b7f6601581882ff73326ee15591c5ae0e0010c8ad7cf897af8945a3889d02148f0b4d4ba02daea2c6322d1b261db93f0370fe4
SSDEEP

49152:ZvnI22SsaNYfdPBldt698dBcjHfxcEf8gk/Ja5oGd8KTHHB72eh2NT:ZvI22SsaNYfdPBldt6+dBcjHfxkY

Score

10^/10

quasar owenn persistence spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Owenn

C2

192.168.0.15:4782

Mutex

2ce88ce3-f2ee-4e1c-b4b7-66f22a22f4e7

Attributes

encryption_key
57E7FE37FD841837FD1B11121840380ED1D1BCFA
install_name
Fortnite.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Service Host: Engine
subdirectory
GameFile

Signatures

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

Quasar payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x00000000002F0000-0x0000000000624000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe	family_quasar
behavioral1/memory/1608-9-0x0000000000180000-0x00000000004B4000-memory.dmp	family_quasar

Detects Windows executables referencing non-Windows User-Agents 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x00000000002F0000-0x0000000000624000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1608-9-0x0000000000180000-0x00000000004B4000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x00000000002F0000-0x0000000000624000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1608-9-0x0000000000180000-0x00000000004B4000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables containing common artifacts observed in infostealers 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-1-0x00000000002F0000-0x0000000000624000-memory.dmp	INDICATOR_SUSPICIOUS_GENInfoStealer
C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe	INDICATOR_SUSPICIOUS_GENInfoStealer
behavioral1/memory/1608-9-0x0000000000180000-0x00000000004B4000-memory.dmp	INDICATOR_SUSPICIOUS_GENInfoStealer

Executes dropped EXE 1 IoCs

Processes:

Fortnite.exe

pid process

1608 Fortnite.exe

pid	process
1608	Fortnite.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exeFortnite.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\Service Host: Engine = "\"C:\\Users\\Admin\\AppData\\Roaming\\GameFile\\Fortnite.exe\""	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\Service Host: Engine = "\"C:\\Users\\Admin\\AppData\\Roaming\\GameFile\\Fortnite.exe\""	Fortnite.exe

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

1912 schtasks.exe
2640 schtasks.exe

pid	process
1912	schtasks.exe
2640	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exeFortnite.exe

description	pid	process
Token: SeDebugPrivilege	1368	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe
Token: SeDebugPrivilege	1608	Fortnite.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

Fortnite.exe

pid process

1608 Fortnite.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Fortnite.exe

pid process

1608 Fortnite.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Fortnite.exe

pid process

1608 Fortnite.exe

pid	process
1608	Fortnite.exe

pid	process
1608	Fortnite.exe

pid	process
1608	Fortnite.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exeFortnite.exe

description	pid	process	target process
PID 1368 wrote to memory of 1912	1368	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe	schtasks.exe
PID 1368 wrote to memory of 1912	1368	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe	schtasks.exe
PID 1368 wrote to memory of 1912	1368	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe	schtasks.exe
PID 1368 wrote to memory of 1608	1368	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe	Fortnite.exe
PID 1368 wrote to memory of 1608	1368	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe	Fortnite.exe
PID 1368 wrote to memory of 1608	1368	6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe	Fortnite.exe
PID 1608 wrote to memory of 2640	1608	Fortnite.exe	schtasks.exe
PID 1608 wrote to memory of 2640	1608	Fortnite.exe	schtasks.exe
PID 1608 wrote to memory of 2640	1608	Fortnite.exe	schtasks.exe

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\6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe
"C:\Users\Admin\AppData\Local\Temp\6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1368

C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Service Host: Engine" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:1912

C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe
"C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Service Host: Engine" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:2640

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\GameFile\Fortnite.exe
Filesize
3.2MB

MD5
dbdfb779556b39424d70176ff2bc5c76

SHA1
ea818c26ffcc9cd2cc1524573b1aadeea9f22edd

SHA256
6e2a82833646e95bd6d98557c8f9746a8b8ae6a1c7cb1f713b475ee36d6c146b

SHA512
6064b0566f97d07974d660ebe1b7f6601581882ff73326ee15591c5ae0e0010c8ad7cf897af8945a3889d02148f0b4d4ba02daea2c6322d1b261db93f0370fe4

Download Submit
memory/1368-0-0x000007FEF56B3000-0x000007FEF56B4000-memory.dmp

Filesize
4KB

Download
memory/1368-1-0x00000000002F0000-0x0000000000624000-memory.dmp

Filesize
3.2MB

Download
memory/1368-2-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/1368-8-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/1608-9-0x0000000000180000-0x00000000004B4000-memory.dmp

Filesize
3.2MB

Download
memory/1608-11-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/1608-10-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/1608-12-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads