quasar | 3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a

General

Target

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
Size

3.1MB
MD5

bee78b7c6bf3e0794fd5351b5a4ebeea
SHA1

19744fe4bb1a73c803f5c8e3f8c715f2e08ada9b
SHA256

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a
SHA512

041cf0f734d316d34b5a7ec39eff1246a783c1864820af43df1ad8c5766af2fbbcaf816af48ef81e0924449159282751b385b2eeb3f3c404b5da6c4f674974d9

Score

10^/10

quasar power evasion spyware suricata themida trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Power

C2

5.45.67.165:2874

Mutex

QSR_MUTEX_lCaExbOzxDAtqtYVRp

Attributes

encryption_key
d5QxWp96Drx5Tu8vGyyl
install_name
gottem.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Frengate
subdirectory
SubDir

Signatures

Quasar Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2036-58-0x0000000000B00000-0x0000000000E50000-memory.dmp	family_quasar
behavioral1/memory/1256-66-0x0000000000FF0000-0x0000000001340000-memory.dmp	family_quasar
behavioral1/memory/1256-67-0x00000000776E0000-0x0000000077860000-memory.dmp	family_quasar

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
suricata: ET MALWARE Common RAT Connectivity Check Observed
suricata: ET MALWARE Common RAT Connectivity Check Observed
suricata
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 1 IoCs

Processes:

gottem.exe

pid process

1256 gottem.exe

pid	process
1256	gottem.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exegottem.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	gottem.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	gottem.exe

Loads dropped DLL 1 IoCs

Processes:

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe

pid process

2036 3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe

pid	process
2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2036-58-0x0000000000B00000-0x0000000000E50000-memory.dmp	themida
C:\Users\Admin\AppData\Roaming\SubDir\gottem.exe	themida
\Users\Admin\AppData\Roaming\SubDir\gottem.exe	themida
behavioral1/memory/1256-66-0x0000000000FF0000-0x0000000001340000-memory.dmp	themida
behavioral1/memory/1256-67-0x00000000776E0000-0x0000000077860000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exegottem.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	gottem.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

1 ip-api.com
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exegottem.exe

pid process

2036 3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
1256 gottem.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
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1608 schtasks.exe
1472 schtasks.exe

flow	ioc
1	ip-api.com

pid	process
2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
1256	gottem.exe

pid	process
1608	schtasks.exe
1472	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exegottem.exe

description	pid	process
Token: SeDebugPrivilege	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
Token: SeDebugPrivilege	1256	gottem.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

gottem.exe

pid process

1256 gottem.exe

pid	process
1256	gottem.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exegottem.exe

description	pid	process	target process
PID 2036 wrote to memory of 1608	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	schtasks.exe
PID 2036 wrote to memory of 1608	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	schtasks.exe
PID 2036 wrote to memory of 1608	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	schtasks.exe
PID 2036 wrote to memory of 1608	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	schtasks.exe
PID 2036 wrote to memory of 1256	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	gottem.exe
PID 2036 wrote to memory of 1256	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	gottem.exe
PID 2036 wrote to memory of 1256	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	gottem.exe
PID 2036 wrote to memory of 1256	2036	3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe	gottem.exe
PID 1256 wrote to memory of 1472	1256	gottem.exe	schtasks.exe
PID 1256 wrote to memory of 1472	1256	gottem.exe	schtasks.exe
PID 1256 wrote to memory of 1472	1256	gottem.exe	schtasks.exe
PID 1256 wrote to memory of 1472	1256	gottem.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe
"C:\Users\Admin\AppData\Local\Temp\3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Windows Frengate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:1608

C:\Users\Admin\AppData\Roaming\SubDir\gottem.exe
"C:\Users\Admin\AppData\Roaming\SubDir\gottem.exe"
2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1256

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Windows Frengate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\gottem.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:1472

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\gottem.exe
Filesize
3.1MB

MD5
bee78b7c6bf3e0794fd5351b5a4ebeea

SHA1
19744fe4bb1a73c803f5c8e3f8c715f2e08ada9b

SHA256
3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a

SHA512
041cf0f734d316d34b5a7ec39eff1246a783c1864820af43df1ad8c5766af2fbbcaf816af48ef81e0924449159282751b385b2eeb3f3c404b5da6c4f674974d9

Download Submit
\Users\Admin\AppData\Roaming\SubDir\gottem.exe
Filesize
3.1MB

MD5
bee78b7c6bf3e0794fd5351b5a4ebeea

SHA1
19744fe4bb1a73c803f5c8e3f8c715f2e08ada9b

SHA256
3976b6d82c6f6c735054205550437992189c4495b04afcabcf4f841639957f1a

SHA512
041cf0f734d316d34b5a7ec39eff1246a783c1864820af43df1ad8c5766af2fbbcaf816af48ef81e0924449159282751b385b2eeb3f3c404b5da6c4f674974d9

Download Submit
memory/1256-61-0x0000000000000000-mapping.dmp

Download
memory/1256-66-0x0000000000FF0000-0x0000000001340000-memory.dmp

Filesize
3.3MB

Download
memory/1256-67-0x00000000776E0000-0x0000000077860000-memory.dmp

Filesize
1.5MB

Download
memory/1472-68-0x0000000000000000-mapping.dmp

Download
memory/1608-59-0x0000000000000000-mapping.dmp

Download
memory/2036-54-0x0000000075C01000-0x0000000075C03000-memory.dmp

Filesize
8KB

Download
memory/2036-57-0x00000000776E0000-0x0000000077860000-memory.dmp

Filesize
1.5MB

Download
memory/2036-58-0x0000000000B00000-0x0000000000E50000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads