quasar | d0c4045c70a0822806a4e56d7883821cd2c19362f1cfed3bcbdb1e1b8eb15234

General

Target

New.exe
Size

409KB
MD5

cf570b21f42f0ce411b7c9961068931e
SHA1

f92aa688a1dbd64a4585ecfe80a9c2d7f408c57d
SHA256

d0c4045c70a0822806a4e56d7883821cd2c19362f1cfed3bcbdb1e1b8eb15234
SHA512

de9dce8300656cd8531569011d043373193cbda125b738e66a5bf107178b48781d6dc88eea696b2074c352a1bf56a4693cfae62e668993ac24ce18aebfdcd684
SSDEEP

12288:jpyJcC+PgUUboV2hShYoyTyrIh9eqh6bIK+Pz9:9wd+Y2IweyA9eqkMZ

Score

10^/10

quasar video spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

Video

C2

runderscore00-25501.portmap.host:25501

Mutex

$Sxr-oWTh3ZS9htfe80iIl5

Attributes

encryption_key
zK8u0rpHf4TJzGf65Flt
install_name
Win11.exe
log_directory
$sxr-Logs
reconnect_delay
3000
startup_key
Windows 11 Boot
subdirectory
Win11

Signatures

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

Quasar payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3400-1-0x0000000000380000-0x00000000003EC000-memory.dmp	family_quasar

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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

SCHTASKS.exe

pid process

4496 SCHTASKS.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2868 PING.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

New.exe

description pid process

Token: SeDebugPrivilege 3400 New.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

New.exe

pid process

3400 New.exe

flow	ioc
1	ip-api.com

pid	process
4496	SCHTASKS.exe

pid	process
2868	PING.EXE

description	pid	process
Token: SeDebugPrivilege	3400	New.exe

pid	process
3400	New.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

New.execmd.exe

description	pid	process	target process
PID 3400 wrote to memory of 4456	3400	New.exe	cmd.exe
PID 3400 wrote to memory of 4456	3400	New.exe	cmd.exe
PID 3400 wrote to memory of 4456	3400	New.exe	cmd.exe
PID 4456 wrote to memory of 4108	4456	cmd.exe	chcp.com
PID 4456 wrote to memory of 4108	4456	cmd.exe	chcp.com
PID 4456 wrote to memory of 4108	4456	cmd.exe	chcp.com
PID 4456 wrote to memory of 2868	4456	cmd.exe	PING.EXE
PID 4456 wrote to memory of 2868	4456	cmd.exe	PING.EXE
PID 4456 wrote to memory of 2868	4456	cmd.exe	PING.EXE
PID 3400 wrote to memory of 4496	3400	New.exe	SCHTASKS.exe
PID 3400 wrote to memory of 4496	3400	New.exe	SCHTASKS.exe
PID 3400 wrote to memory of 4496	3400	New.exe	SCHTASKS.exe

C:\Users\Admin\AppData\Local\Temp\New.exe
"C:\Users\Admin\AppData\Local\Temp\New.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3400

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MgwM2zrxANGR.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:4456

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:4108

C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
3⤵
- Runs ping.exe
PID:2868

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77New.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\New.exe'" /sc onlogon /rl HIGHEST
2⤵
- Creates scheduled task(s)
PID:4496

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

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MgwM2zrxANGR.bat

Filesize
260B

MD5
38585015bae6ccd1870f77d5920cd964

SHA1
c72cbd4ea02278bbc1dc23f68c0ce335aa1e8f4d

SHA256
26eb79e356a4fdf17fa6dec6e3aafad3420bcb80e994080c315dca60ad02589f

SHA512
2c6f7d318dd9344ef85d6aadc13bd309f48cee78948cd9eabb52e21352acf0809887fbb8fcb255232d4f4ca14ef8ce992a5c6c1713a7c419346289d7e4554e0e

Download Submit
C:\Users\Admin\AppData\Roaming\$sxr-Logs\05-27-~1

Filesize
224B

MD5
f0bc1bc6ba5a661b3361fe32ab1e4898

SHA1
573964e2caef11c58ab6c75b709246880645e002

SHA256
2ff72d3ac5ad5d7c70567e55105dadbc37300bbad0f4118cc994c9e46267f2f2

SHA512
dbd95df1b2d39bc33856aac48cafe5f2c7f1b48e8be25b21f0bec86e0cc5ab64b36c87cdfff948c2e097ec290898defda0a8221968752c137538289e5a6024cc

Download Submit
memory/3400-6-0x00000000051B0000-0x00000000051C2000-memory.dmp

Filesize
72KB

Download
memory/3400-3-0x0000000004CF0000-0x0000000004D82000-memory.dmp

Filesize
584KB

Download
memory/3400-4-0x0000000073770000-0x0000000073E5E000-memory.dmp

Filesize
6.9MB

Download
memory/3400-5-0x0000000004C40000-0x0000000004CA6000-memory.dmp

Filesize
408KB

Download
memory/3400-0-0x000000007377E000-0x000000007377F000-memory.dmp

Filesize
4KB

Download
memory/3400-7-0x0000000005CA0000-0x0000000005CDE000-memory.dmp

Filesize
248KB

Download
memory/3400-9-0x00000000063B0000-0x00000000063BA000-memory.dmp

Filesize
40KB

Download
memory/3400-10-0x000000007377E000-0x000000007377F000-memory.dmp

Filesize
4KB

Download
memory/3400-11-0x0000000073770000-0x0000000073E5E000-memory.dmp

Filesize
6.9MB

Download
memory/3400-2-0x00000000051F0000-0x00000000056EE000-memory.dmp

Filesize
5.0MB

Download
memory/3400-17-0x0000000073770000-0x0000000073E5E000-memory.dmp

Filesize
6.9MB

Download
memory/3400-1-0x0000000000380000-0x00000000003EC000-memory.dmp

Filesize
432KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads