quasar | dc3ca1c97eb30f5be34ee7c76f6d3121659e314b8104d283c829f1a30f3b9796

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 01:16

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General

Target

Captura de Pantalla de PAGO.exe
Size

946KB
MD5

c7a177d2b04341c5e21ca7cf9f6000db
SHA1

828a9d4041466f2e2f76b6ffcf641ac3814e7156
SHA256

745b2a241f10dabbb5acd2abeb3c3b2df7ba525e4fae03e9de11efe5adb082d3
SHA512

c07564d27f7c18264eb8145c20f3bb62da6e3e05b66836341a19ca0a2f6a889651a43357c15b618b0b578c9a0458ca6dc6aecf968404fea17f7865758c225bb5
SSDEEP

24576:XRejzEhR4yfC6j7S9beD5M/+DnY7YpVbi2y:XRej4hWYCO7S9beDW8nhpV+7

Score

10^/10

quasar stroy discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Stroy

109.248.151.166:61537

Mutex

QSR_MUTEX_uHD8seWaFzpqqYxRLX

Attributes

encryption_key
IR3AcRhjtuelpwNmTP7v
install_name
Updater.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Update
subdirectory
Windows

Signatures

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

Quasar payload 1 IoCs

resource	yara_rule
behavioral1/memory/3000-5-0x0000000000400000-0x000000000045E000-memory.dmp	family_quasar

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 set thread context of 2416	2836	Captura de Pantalla de PAGO.exe	31

System Location Discovery: System Language Discovery 1 TTPs 1 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	Captura de Pantalla de PAGO.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	Captura de Pantalla de PAGO.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 3000	2836	Captura de Pantalla de PAGO.exe	30
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31
PID 2836 wrote to memory of 2416	2836	Captura de Pantalla de PAGO.exe	31

C:\Users\Admin\AppData\Local\Temp\Captura de Pantalla de PAGO.exe
"C:\Users\Admin\AppData\Local\Temp\Captura de Pantalla de PAGO.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Users\Admin\AppData\Local\Temp\Captura de Pantalla de PAGO.exe
  "C:\Users\Admin\AppData\Local\Temp\Captura de Pantalla de PAGO.exe"
  2⤵
  PID:3000
- C:\Users\Admin\AppData\Local\Temp\Captura de Pantalla de PAGO.exe
  "C:\Users\Admin\AppData\Local\Temp\Captura de Pantalla de PAGO.exe"
  2⤵
  PID:2416

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/2836-0-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

Filesize
4KB

Download
memory/2836-1-0x0000000000360000-0x0000000000452000-memory.dmp

Filesize
968KB

Download
memory/2836-2-0x0000000006F50000-0x0000000007060000-memory.dmp

Filesize
1.1MB

Download
memory/2836-3-0x0000000073EF0000-0x00000000745DE000-memory.dmp

Filesize
6.9MB

Download
memory/2836-8-0x0000000073EF0000-0x00000000745DE000-memory.dmp

Filesize
6.9MB

Download
memory/3000-5-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download