quasar | 5465f02f24ee5c1fc9c9c27c86c209eeddc2ed607143e1b76ca9c9d9b7b84154

General

Target

BoostBot.exe
Size

409KB
MD5

404ab800bbe49c36bd64d0d73600b59a
SHA1

4c8dff2702fada108f7477ad357067310b584366
SHA256

5465f02f24ee5c1fc9c9c27c86c209eeddc2ed607143e1b76ca9c9d9b7b84154
SHA512

d0ecd88adfd84d9d8e845281e0437368aadf3d1d6fb704d7c7630d1360697471c2a49584f968eeebd5b435f11af9ce3d06327f1835fa5d07a140f22c0f95fc11
SSDEEP

12288:dpyJcC+xB0XbJQtlQDFuYAbtP6j8fXx7EBI:zwd+QJQbQYbl6Ivn

Score

10^/10

quasar rpad spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

RPad

C2

even-lemon.gl.at.ply.gg:33587

Mutex

$Sxr-okPqrmZ8kNVUcS4Rp0

Attributes

encryption_key
XmcBnPuLlN1e8SHIRR1z
install_name
$sxr-powershell.exe
log_directory
$SXR-LOGS
reconnect_delay
3000
startup_key
$sxr-powershell
subdirectory
$sxr-seroxen2

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1420-1-0x0000000000A60000-0x0000000000ACC000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\$sxr-seroxen2\$sxr-powershell.exe	family_quasar

Executes dropped EXE 1 IoCs

Processes:

$sxr-powershell.exe

pid process

1600 $sxr-powershell.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

18 ip-api.com

pid	process
1600	$sxr-powershell.exe

flow	ioc
18	ip-api.com

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

taskmgr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeSCHTASKS.exe

pid process

1460 schtasks.exe
4920 schtasks.exe
1496 SCHTASKS.exe

pid	process
1460	schtasks.exe
4920	schtasks.exe
1496	SCHTASKS.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

taskmgr.exe

pid	process
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

BoostBot.exe$sxr-powershell.exetaskmgr.exe

description	pid	process
Token: SeDebugPrivilege	1420	BoostBot.exe
Token: SeDebugPrivilege	1600	$sxr-powershell.exe
Token: SeDebugPrivilege	2988	taskmgr.exe
Token: SeSystemProfilePrivilege	2988	taskmgr.exe
Token: SeCreateGlobalPrivilege	2988	taskmgr.exe

Suspicious use of FindShellTrayWindow 37 IoCs

Processes:

taskmgr.exe

pid	process
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe

Suspicious use of SendNotifyMessage 37 IoCs

Processes:

taskmgr.exe

pid	process
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe
2988	taskmgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

$sxr-powershell.exe

pid process

1600 $sxr-powershell.exe

pid	process
1600	$sxr-powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

BoostBot.exe$sxr-powershell.exe

description	pid	process	target process
PID 1420 wrote to memory of 1460	1420	BoostBot.exe	schtasks.exe
PID 1420 wrote to memory of 1460	1420	BoostBot.exe	schtasks.exe
PID 1420 wrote to memory of 1460	1420	BoostBot.exe	schtasks.exe
PID 1420 wrote to memory of 1600	1420	BoostBot.exe	$sxr-powershell.exe
PID 1420 wrote to memory of 1600	1420	BoostBot.exe	$sxr-powershell.exe
PID 1420 wrote to memory of 1600	1420	BoostBot.exe	$sxr-powershell.exe
PID 1600 wrote to memory of 4920	1600	$sxr-powershell.exe	schtasks.exe
PID 1600 wrote to memory of 4920	1600	$sxr-powershell.exe	schtasks.exe
PID 1600 wrote to memory of 4920	1600	$sxr-powershell.exe	schtasks.exe
PID 1420 wrote to memory of 1496	1420	BoostBot.exe	SCHTASKS.exe
PID 1420 wrote to memory of 1496	1420	BoostBot.exe	SCHTASKS.exe
PID 1420 wrote to memory of 1496	1420	BoostBot.exe	SCHTASKS.exe

C:\Users\Admin\AppData\Local\Temp\BoostBot.exe
"C:\Users\Admin\AppData\Local\Temp\BoostBot.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "$sxr-powershell" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\BoostBot.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:1460

C:\Users\Admin\AppData\Roaming\$sxr-seroxen2\$sxr-powershell.exe
"C:\Users\Admin\AppData\Roaming\$sxr-seroxen2\$sxr-powershell.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "$sxr-powershell" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\$sxr-seroxen2\$sxr-powershell.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:4920

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77BoostBot.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\BoostBot.exe'" /sc onlogon /rl HIGHEST
2⤵
- Creates scheduled task(s)
PID:1496

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\$sxr-seroxen2\$sxr-powershell.exe

Filesize
409KB

MD5
404ab800bbe49c36bd64d0d73600b59a

SHA1
4c8dff2702fada108f7477ad357067310b584366

SHA256
5465f02f24ee5c1fc9c9c27c86c209eeddc2ed607143e1b76ca9c9d9b7b84154

SHA512
d0ecd88adfd84d9d8e845281e0437368aadf3d1d6fb704d7c7630d1360697471c2a49584f968eeebd5b435f11af9ce3d06327f1835fa5d07a140f22c0f95fc11

Download Submit
memory/1420-18-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/1420-0-0x0000000074FBE000-0x0000000074FBF000-memory.dmp

Filesize
4KB

Download
memory/1420-1-0x0000000000A60000-0x0000000000ACC000-memory.dmp

Filesize
432KB

Download
memory/1420-4-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/1420-5-0x00000000054E0000-0x0000000005546000-memory.dmp

Filesize
408KB

Download
memory/1420-6-0x0000000006340000-0x0000000006352000-memory.dmp

Filesize
72KB

Download
memory/1420-7-0x0000000006880000-0x00000000068BC000-memory.dmp

Filesize
240KB

Download
memory/1420-2-0x00000000059F0000-0x0000000005F94000-memory.dmp

Filesize
5.6MB

Download
memory/1420-3-0x0000000005580000-0x0000000005612000-memory.dmp

Filesize
584KB

Download
memory/1600-33-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/1600-16-0x0000000006850000-0x000000000685A000-memory.dmp

Filesize
40KB

Download
memory/1600-14-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/1600-13-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/1600-32-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/1600-34-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2988-19-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-30-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-29-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-28-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-27-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-26-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-25-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-31-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-20-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download
memory/2988-21-0x000001A23CF40000-0x000001A23CF41000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads