quasar | d0c4045c70a0822806a4e56d7883821cd2c19362f1cfed3bcbdb1e1b8eb15234

Analysis

max time kernel
271s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2024, 23:25

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
New.exe
Size 409KB
Sample240527-3ememafa86
SHA256 d0c4045c70a0822806a4e56d7883821cd2c19362f1cfed3bcbdb1e1b8eb15234
MD5 cf570b21f42f0ce411b7c9961068931e
SHA1 f92aa688a1dbd64a4585ecfe80a9c2d7f408c57d
SHA512 de9dce8300656cd8531569011d043373193cbda125b738e66a5bf107178b48781d6dc88eea696b2074c352a1bf56a4693cfae62e668993ac24ce18aebfdcd684
SSDEEP 12288:jpyJcC+PgUUboV2hShYoyTyrIh9eqh6bIK+Pz9:9wd+Y2IweyA9eqkMZ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

quasar video spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

Video

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

resource	yara_rule
behavioral1/memory/432-1-0x0000000000030000-0x000000000009C000-memory.dmp	family_quasar

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	New.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.

flow	ioc
7	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

pid	Process
1980	SCHTASKS.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5012	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	New.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
432	New.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 952	432	New.exe	95
PID 432 wrote to memory of 952	432	New.exe	95
PID 432 wrote to memory of 952	432	New.exe	95
PID 952 wrote to memory of 3444	952	cmd.exe	97
PID 952 wrote to memory of 3444	952	cmd.exe	97
PID 952 wrote to memory of 3444	952	cmd.exe	97
PID 952 wrote to memory of 5012	952	cmd.exe	98
PID 952 wrote to memory of 5012	952	cmd.exe	98
PID 952 wrote to memory of 5012	952	cmd.exe	98
PID 432 wrote to memory of 1980	432	New.exe	99
PID 432 wrote to memory of 1980	432	New.exe	99
PID 432 wrote to memory of 1980	432	New.exe	99

C:\Users\Admin\AppData\Local\Temp\New.exe
"C:\Users\Admin\AppData\Local\Temp\New.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:432
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3XyKTWJLX4Bg.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:952
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:3444
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 10 localhost
    3⤵
    - Runs ping.exe
    PID:5012
- 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:1980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

3XyKTWJLX4Bg.bat

Path C:\Users\Admin\AppData\Local\Temp\3XyKTWJLX4Bg.bat
Size 260B
SHA256 c89ab7b82dfc29ad9ded2494f6e33c35270917d607fd0540d3fc9cecb7ed8348
MD5 ce89cf6bd96820c008122f12ae7c9f82
SHA1 f5f593666c2d191f5dba7f0f1d5b3ad1b6116038
SHA512 02b5b0957200a1ca9a6a15072d4f607db06c42c12acde30d8698e1d7055fdd1131a2591e47b3ce0e9d9c6718c4f08178d49043c40e0e67282ba8090d3b9a613f
MD5 SHA1 SHA512

Submit Download

05-27-~1

Path C:\Users\Admin\AppData\Roaming\$sxr-Logs\05-27-~1
Size 224B
SHA256 ef2a64128a7d97ed575b2a2647092292286bcefb4d87cee822792e30b623af88
MD5 dfcbdef06c720514af8e8b63c2e48878
SHA1 7ee7489cdc298005b41d29c12f337c0e1444a662
SHA512 376056467e26d47b02d7b20f9472f617eea4d69a44d639aaf4de47fa413e352b5501368ad0eaf0bb9123bdd60b8d23e9f86d1fab3dda0872b77274c1c438b393
MD5 SHA1 SHA512

Submit Download

memory/432-6-0x0000000005000000-0x0000000005012000-memory.dmp

Download

memory/432-3-0x0000000004BC0000-0x0000000004C52000-memory.dmp

Download

memory/432-4-0x0000000074EC0000-0x0000000075670000-memory.dmp

Download

memory/432-5-0x0000000004AF0000-0x0000000004B56000-memory.dmp

Download

memory/432-0-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Download

memory/432-7-0x0000000005D00000-0x0000000005D3C000-memory.dmp

Download

memory/432-9-0x00000000061C0000-0x00000000061CA000-memory.dmp

Download

memory/432-10-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Download

memory/432-11-0x0000000074EC0000-0x0000000075670000-memory.dmp

Download

memory/432-2-0x0000000005030000-0x00000000055D4000-memory.dmp

Download

memory/432-17-0x0000000074EC0000-0x0000000075670000-memory.dmp

Download

memory/432-1-0x0000000000030000-0x000000000009C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads