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
behavioral3/memory/2060-1-0x0000000000060000-0x00000000000CC000-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

1412 SCHTASKS.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4180 PING.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

New.exe

description pid process

Token: SeDebugPrivilege 2060 New.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

New.exe

pid process

2060 New.exe

flow	ioc
1	ip-api.com

pid	process
1412	SCHTASKS.exe

pid	process
4180	PING.EXE

description	pid	process
Token: SeDebugPrivilege	2060	New.exe

pid	process
2060	New.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

New.execmd.exe

description	pid	process	target process
PID 2060 wrote to memory of 4316	2060	New.exe	cmd.exe
PID 2060 wrote to memory of 4316	2060	New.exe	cmd.exe
PID 2060 wrote to memory of 4316	2060	New.exe	cmd.exe
PID 4316 wrote to memory of 1540	4316	cmd.exe	chcp.com
PID 4316 wrote to memory of 1540	4316	cmd.exe	chcp.com
PID 4316 wrote to memory of 1540	4316	cmd.exe	chcp.com
PID 4316 wrote to memory of 4180	4316	cmd.exe	PING.EXE
PID 4316 wrote to memory of 4180	4316	cmd.exe	PING.EXE
PID 4316 wrote to memory of 4180	4316	cmd.exe	PING.EXE
PID 2060 wrote to memory of 1412	2060	New.exe	SCHTASKS.exe
PID 2060 wrote to memory of 1412	2060	New.exe	SCHTASKS.exe
PID 2060 wrote to memory of 1412	2060	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:2060

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\g3OO9N4StHzv.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:4316

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:1540

C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
3⤵
- Runs ping.exe
PID:4180

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:1412

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\g3OO9N4StHzv.bat
Filesize
260B

MD5
e8349913397f8c199d3308bd91d73a48

SHA1
4c7ede99d0fdc68b91684baa1adc48d9a48d63a8

SHA256
2bde23d1c027826051a4d339b5f6d77c4946d75dbf5743232b9da4e71dc6eacb

SHA512
02b292a5ed025b82e3c0452b1bebc457dc646323ddbae49c4090431714529f266caa95c2c0e0a2a2454b4ce2c87382dd287d7db92b9a4f011f965e4bdb07d784

Download Submit
C:\Users\Admin\AppData\Roaming\$sxr-Logs\05-27-~1
Filesize
224B

MD5
137fe9ecaf2f1b3a99fe333396903e69

SHA1
ad9b1c7ccafdf7d562c5bf96d1780d52f5ec50fc

SHA256
3fc434987931fcbc33b4fe7daeda35b4b01782ddc6c9c55cf386c47a95116796

SHA512
44ce261c546b038ad9508b675c6a2bf5c741e91539b1f75b3c80b424d615afbd52c1a8f2689b1804f817a925114cf6ef22ff33f2754accabb2f2130f947b5a20

Download Submit
memory/2060-6-0x0000000005000000-0x0000000005012000-memory.dmp

Filesize
72KB

Download
memory/2060-3-0x0000000004BA0000-0x0000000004C32000-memory.dmp

Filesize
584KB

Download
memory/2060-4-0x0000000074A20000-0x00000000751D1000-memory.dmp

Filesize
7.7MB

Download
memory/2060-5-0x0000000004C40000-0x0000000004CA6000-memory.dmp

Filesize
408KB

Download
memory/2060-0-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Filesize
4KB

Download
memory/2060-7-0x0000000005E10000-0x0000000005E4C000-memory.dmp

Filesize
240KB

Download
memory/2060-9-0x00000000062B0000-0x00000000062BA000-memory.dmp

Filesize
40KB

Download
memory/2060-10-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Filesize
4KB

Download
memory/2060-11-0x0000000074A20000-0x00000000751D1000-memory.dmp

Filesize
7.7MB

Download
memory/2060-2-0x0000000005050000-0x00000000055F6000-memory.dmp

Filesize
5.6MB

Download
memory/2060-17-0x0000000074A20000-0x00000000751D1000-memory.dmp

Filesize
7.7MB

Download
memory/2060-1-0x0000000000060000-0x00000000000CC000-memory.dmp

Filesize
432KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads