quasar | 5465f02f24ee5c1fc9c9c27c86c209eeddc2ed607143e1b76ca9c9d9b7b84154

General

Target

BoostBot.exe.bin.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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2248-1-0x0000000000860000-0x00000000008CC000-memory.dmp	family_quasar
\Users\Admin\AppData\Roaming\$sxr-seroxen2\$sxr-powershell.exe	family_quasar
behavioral1/memory/2672-10-0x00000000000F0000-0x000000000015C000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

Processes:

$sxr-powershell.exe

pid process

2672 $sxr-powershell.exe
Loads dropped DLL 1 IoCs

Processes:

BoostBot.exe.bin.exe

pid process

2248 BoostBot.exe.bin.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
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

2632 schtasks.exe
2680 schtasks.exe
2776 SCHTASKS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

BoostBot.exe.bin.exe$sxr-powershell.exe

description pid process

Token: SeDebugPrivilege 2248 BoostBot.exe.bin.exe
Token: SeDebugPrivilege 2672 $sxr-powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

$sxr-powershell.exe

pid process

2672 $sxr-powershell.exe

pid	process
2672	$sxr-powershell.exe

pid	process
2248	BoostBot.exe.bin.exe

flow	ioc
2	ip-api.com

pid	process
2632	schtasks.exe
2680	schtasks.exe
2776	SCHTASKS.exe

description	pid	process
Token: SeDebugPrivilege	2248	BoostBot.exe.bin.exe
Token: SeDebugPrivilege	2672	$sxr-powershell.exe

pid	process
2672	$sxr-powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

BoostBot.exe.bin.exe$sxr-powershell.exe

description	pid	process	target process
PID 2248 wrote to memory of 2680	2248	BoostBot.exe.bin.exe	schtasks.exe
PID 2248 wrote to memory of 2680	2248	BoostBot.exe.bin.exe	schtasks.exe
PID 2248 wrote to memory of 2680	2248	BoostBot.exe.bin.exe	schtasks.exe
PID 2248 wrote to memory of 2680	2248	BoostBot.exe.bin.exe	schtasks.exe
PID 2248 wrote to memory of 2672	2248	BoostBot.exe.bin.exe	$sxr-powershell.exe
PID 2248 wrote to memory of 2672	2248	BoostBot.exe.bin.exe	$sxr-powershell.exe
PID 2248 wrote to memory of 2672	2248	BoostBot.exe.bin.exe	$sxr-powershell.exe
PID 2248 wrote to memory of 2672	2248	BoostBot.exe.bin.exe	$sxr-powershell.exe
PID 2248 wrote to memory of 2776	2248	BoostBot.exe.bin.exe	SCHTASKS.exe
PID 2248 wrote to memory of 2776	2248	BoostBot.exe.bin.exe	SCHTASKS.exe
PID 2248 wrote to memory of 2776	2248	BoostBot.exe.bin.exe	SCHTASKS.exe
PID 2248 wrote to memory of 2776	2248	BoostBot.exe.bin.exe	SCHTASKS.exe
PID 2672 wrote to memory of 2632	2672	$sxr-powershell.exe	schtasks.exe
PID 2672 wrote to memory of 2632	2672	$sxr-powershell.exe	schtasks.exe
PID 2672 wrote to memory of 2632	2672	$sxr-powershell.exe	schtasks.exe
PID 2672 wrote to memory of 2632	2672	$sxr-powershell.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\BoostBot.exe.bin.exe
"C:\Users\Admin\AppData\Local\Temp\BoostBot.exe.bin.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2248

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "$sxr-powershell" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\BoostBot.exe.bin.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:2680

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:2672

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:2632

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77BoostBot.exe.bin.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\BoostBot.exe.bin.exe'" /sc onlogon /rl HIGHEST
2⤵
- Creates scheduled task(s)
PID:2776

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\Users\Admin\AppData\Roaming\$sxr-seroxen2\$sxr-powershell.exe
Filesize
409KB

MD5
404ab800bbe49c36bd64d0d73600b59a

SHA1
4c8dff2702fada108f7477ad357067310b584366

SHA256
5465f02f24ee5c1fc9c9c27c86c209eeddc2ed607143e1b76ca9c9d9b7b84154

SHA512
d0ecd88adfd84d9d8e845281e0437368aadf3d1d6fb704d7c7630d1360697471c2a49584f968eeebd5b435f11af9ce3d06327f1835fa5d07a140f22c0f95fc11

Download Submit
memory/2248-0-0x000000007414E000-0x000000007414F000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x0000000000860000-0x00000000008CC000-memory.dmp

Filesize
432KB

Download
memory/2248-2-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2248-13-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-10-0x00000000000F0000-0x000000000015C000-memory.dmp

Filesize
432KB

Download
memory/2672-12-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-11-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-15-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-16-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads