quasar | 4cca8b360d5053a789ea822ab80261dc6f010c1c72b0d449ca8cdcaffd2e2c0a

Analysis

max time kernel
144s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-01-2025 08:07

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General

Target

bbb.exe
Size

1.2MB
MD5

00f33641a6c78c9e2330100a28c4a37c
SHA1

31cee3fbe5a130c52145919c4bb903125069fa08
SHA256

4cca8b360d5053a789ea822ab80261dc6f010c1c72b0d449ca8cdcaffd2e2c0a
SHA512

ecfa5076f26ad9f13b23a7bfc78c533eb01c2e6cdf4590fe1cc4790697377b7e3b11c9ed2e5f5b9bd7f5bc6fa104f6ca83145249b159a00c203beb27a6c51f3a
SSDEEP

24576:Cct8/gOkwvlKtq0p/QXA7ipUtHb8Gzg4etPxMLToY9AzqAPWMaGzs1Db:C5YsvCq0pkA7ke4GCITo2ocj1Db

Score

10^/10

quasar alinaa discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

ALINAA

youtubevideos.duckdns.org:6

Mutex

QSR_MUTEX_c50LUXwDkjFdsHNXKw

Attributes

encryption_key
IyL3NZsArZqP2e5avVTp
install_name
csrssss.exe
log_directory
Logs
reconnect_delay
3000
startup_key
csrsss
subdirectory
microsoftsa

Signatures

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

Quasar payload 1 IoCs

resource	yara_rule
behavioral2/memory/3128-1335-0x0000000000400000-0x000000000045E000-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.

flow	ioc
14	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3692 set thread context of 3128	3692	bbb.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bbb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bbb.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3692	bbb.exe
3692	bbb.exe
3692	bbb.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3692	bbb.exe
Token: SeDebugPrivilege	3692	bbb.exe
Token: SeDebugPrivilege	3128	bbb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3128	bbb.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3692 wrote to memory of 3128	3692	bbb.exe	83
PID 3692 wrote to memory of 3128	3692	bbb.exe	83
PID 3692 wrote to memory of 3128	3692	bbb.exe	83
PID 3692 wrote to memory of 3128	3692	bbb.exe	83
PID 3692 wrote to memory of 3128	3692	bbb.exe	83
PID 3692 wrote to memory of 3128	3692	bbb.exe	83
PID 3692 wrote to memory of 3128	3692	bbb.exe	83
PID 3692 wrote to memory of 3128	3692	bbb.exe	83

C:\Users\Admin\AppData\Local\Temp\bbb.exe
"C:\Users\Admin\AppData\Local\Temp\bbb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3692
- C:\Users\Admin\AppData\Local\Temp\bbb.exe
  "C:\Users\Admin\AppData\Local\Temp\bbb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3128-1333-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/3128-1335-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/3128-1336-0x00000000052D0000-0x0000000005362000-memory.dmp

Filesize
584KB

Download
memory/3128-1337-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/3128-1338-0x00000000053D0000-0x0000000005436000-memory.dmp

Filesize
408KB

Download
memory/3128-1343-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/3128-1342-0x00000000069B0000-0x00000000069BA000-memory.dmp

Filesize
40KB

Download
memory/3128-1340-0x0000000006620000-0x000000000665C000-memory.dmp

Filesize
240KB

Download
memory/3128-1339-0x0000000005FA0000-0x0000000005FB2000-memory.dmp

Filesize
72KB

Download
memory/3692-34-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-24-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-65-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-66-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-62-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-60-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-58-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-56-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-55-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-52-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-50-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-48-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-46-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-44-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-42-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-38-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-36-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-28-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-32-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-31-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-26-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-6-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-22-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-20-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-18-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-16-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-14-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-12-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-10-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-8-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-3-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-4-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-1325-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/3692-1326-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/3692-1327-0x0000000005160000-0x00000000051E4000-memory.dmp

Filesize
528KB

Download
memory/3692-1328-0x0000000005220000-0x00000000052A0000-memory.dmp

Filesize
512KB

Download
memory/3692-40-0x0000000004FE0000-0x0000000005104000-memory.dmp

Filesize
1.1MB

Download
memory/3692-2-0x0000000004FE0000-0x000000000510A000-memory.dmp

Filesize
1.2MB

Download
memory/3692-1-0x00000000004E0000-0x000000000061A000-memory.dmp

Filesize
1.2MB

Download
memory/3692-0-0x000000007466E000-0x000000007466F000-memory.dmp

Filesize
4KB

Download
memory/3692-1329-0x00000000052A0000-0x00000000052EC000-memory.dmp

Filesize
304KB

Download
memory/3692-1330-0x0000000005BB0000-0x0000000006154000-memory.dmp

Filesize
5.6MB

Download
memory/3692-1331-0x00000000054F0000-0x0000000005544000-memory.dmp

Filesize
336KB

Download
memory/3692-1334-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download