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
behavioral2/memory/1804-1-0x00000000004E0000-0x000000000054C000-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

3632 $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
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

4696 schtasks.exe
1964 SCHTASKS.exe
640 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

BoostBot.exe$sxr-powershell.exe

description pid process

Token: SeDebugPrivilege 1804 BoostBot.exe
Token: SeDebugPrivilege 3632 $sxr-powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

$sxr-powershell.exe

pid process

3632 $sxr-powershell.exe

pid	process
3632	$sxr-powershell.exe

flow	ioc
18	ip-api.com

pid	process
4696	schtasks.exe
1964	SCHTASKS.exe
640	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	1804	BoostBot.exe
Token: SeDebugPrivilege	3632	$sxr-powershell.exe

pid	process
3632	$sxr-powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

BoostBot.exe$sxr-powershell.exe

description	pid	process	target process
PID 1804 wrote to memory of 4696	1804	BoostBot.exe	schtasks.exe
PID 1804 wrote to memory of 4696	1804	BoostBot.exe	schtasks.exe
PID 1804 wrote to memory of 4696	1804	BoostBot.exe	schtasks.exe
PID 1804 wrote to memory of 3632	1804	BoostBot.exe	$sxr-powershell.exe
PID 1804 wrote to memory of 3632	1804	BoostBot.exe	$sxr-powershell.exe
PID 1804 wrote to memory of 3632	1804	BoostBot.exe	$sxr-powershell.exe
PID 1804 wrote to memory of 1964	1804	BoostBot.exe	SCHTASKS.exe
PID 1804 wrote to memory of 1964	1804	BoostBot.exe	SCHTASKS.exe
PID 1804 wrote to memory of 1964	1804	BoostBot.exe	SCHTASKS.exe
PID 3632 wrote to memory of 640	3632	$sxr-powershell.exe	schtasks.exe
PID 3632 wrote to memory of 640	3632	$sxr-powershell.exe	schtasks.exe
PID 3632 wrote to memory of 640	3632	$sxr-powershell.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:1804

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:4696

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:3632

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:640

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:1964

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=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:2360

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
404ab800bbe49c36bd64d0d73600b59a

SHA1
4c8dff2702fada108f7477ad357067310b584366

SHA256
5465f02f24ee5c1fc9c9c27c86c209eeddc2ed607143e1b76ca9c9d9b7b84154

SHA512
d0ecd88adfd84d9d8e845281e0437368aadf3d1d6fb704d7c7630d1360697471c2a49584f968eeebd5b435f11af9ce3d06327f1835fa5d07a140f22c0f95fc11

Download Submit
memory/1804-6-0x00000000060A0000-0x00000000060B2000-memory.dmp

Filesize
72KB

Download
memory/1804-2-0x00000000053F0000-0x0000000005994000-memory.dmp

Filesize
5.6MB

Download
memory/1804-3-0x0000000004F80000-0x0000000005012000-memory.dmp

Filesize
584KB

Download
memory/1804-4-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/1804-5-0x0000000005320000-0x0000000005386000-memory.dmp

Filesize
408KB

Download
memory/1804-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/1804-7-0x00000000064E0000-0x000000000651C000-memory.dmp

Filesize
240KB

Download
memory/1804-1-0x00000000004E0000-0x000000000054C000-memory.dmp

Filesize
432KB

Download
memory/1804-16-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/3632-13-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/3632-14-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/3632-18-0x0000000006FA0000-0x0000000006FAA000-memory.dmp

Filesize
40KB

Download
memory/3632-19-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads