quasar | 73bf5bec1f9a1a089ed27964a354858e5661822882883394ed2d1a9ed241b348

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 08:45

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General

Target

ddef8abb1f0a772d1b6f3e6931dd2e3d_JaffaCakes118.dll
Size

2.9MB
MD5

ddef8abb1f0a772d1b6f3e6931dd2e3d
SHA1

227e55ff077f997f601459ca78a49cc15b970dd4
SHA256

73bf5bec1f9a1a089ed27964a354858e5661822882883394ed2d1a9ed241b348
SHA512

9f6a2354dc209f284a8ab98126a1a8c8a8d4142be0992648f94222924a2b7504230167f5849538559cfb961513e81bbd7b91288f6bdef53bb4f03edfe8971080
SSDEEP

49152:s1Wpz744WsmBtUQDY8rwSWss9Dq/PyZy8rA3mcxrLZhG3GRcwXQ8d1s:OWC4WzBtRY8r1Welm+LZhVG

Score

10^/10

quasar windowsdefender discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

WindowsDefender

timeserver-ts1.redirectme.net:4545

Mutex

38846eaf-4c33-4e2e-b206-1f55763a931c

Attributes

encryption_key
4831379DBBBCBA15F0105372CB435E62F03DFA1E
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

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/2864-2-0x00000000055D0000-0x000000000589A000-memory.dmp	family_quasar

Blocklisted process makes network request 7 IoCs

flow	pid	Process
3	2864	rundll32.exe
4	2864	rundll32.exe
5	2864	rundll32.exe
7	2864	rundll32.exe
8	2864	rundll32.exe
9	2864	rundll32.exe
11	2864	rundll32.exe

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	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2864	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 2864	2804	rundll32.exe	30
PID 2804 wrote to memory of 2864	2804	rundll32.exe	30
PID 2804 wrote to memory of 2864	2804	rundll32.exe	30
PID 2804 wrote to memory of 2864	2804	rundll32.exe	30
PID 2804 wrote to memory of 2864	2804	rundll32.exe	30
PID 2804 wrote to memory of 2864	2804	rundll32.exe	30
PID 2804 wrote to memory of 2864	2804	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddef8abb1f0a772d1b6f3e6931dd2e3d_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddef8abb1f0a772d1b6f3e6931dd2e3d_JaffaCakes118.dll,#1
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2864

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/2864-0-0x0000000002440000-0x0000000002709000-memory.dmp

Filesize
2.8MB

Download
memory/2864-1-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/2864-2-0x00000000055D0000-0x000000000589A000-memory.dmp

Filesize
2.8MB

Download
memory/2864-3-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download