quasar | 44b801fdbc011ac9bec93c1e9fde044e88ea76605b7a1ea5988021ddbf58f6d4

Resubmissions

07-01-2025 19:18

250107-x1a1tsvldv 10

07-01-2025 05:26

250107-f4wchawmd1 10

Analysis

max time kernel
94s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 05:26

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General

Target

JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe
Size

950KB
MD5

50009ad06a8632a37995f4a94dc76278
SHA1

3105b87fee58f39090ae3cbeb9d09513e5ef3f69
SHA256

44b801fdbc011ac9bec93c1e9fde044e88ea76605b7a1ea5988021ddbf58f6d4
SHA512

2dd4682d736d05b1e845b314234f98b8de554d47618914ae3b9b2e359e76da098dae675c68b8db9c9e14b51ca209f573d758229175abfd2febd270a78bbf7d1a
SSDEEP

24576:1ecCy8fWvhaLU+4tCKsu4JRfl8S7U2MQGmP:hugHt78

Score

10^/10

quasar script kiddie discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Script Kiddie

NaziSec2-64817.portmap.io:64817

Mutex

01912710-4689-49d7-8331-827532b3887f

Attributes

encryption_key
082CB3A67AAB74DC729A374C73C4CFE478208DA9
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 2 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b7f-7.dat	family_quasar
behavioral2/memory/3148-15-0x0000000000A20000-0x0000000000AAA000-memory.dmp	family_quasar

Checks computer location settings 2 TTPs 2 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Tempuzkd4ag4vzc.exe

Executes dropped EXE 1 IoCs

pid	Process
3148	Tempuzkd4ag4vzc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
448	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
448	PING.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1604	JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe
Token: SeDebugPrivilege	3148	Tempuzkd4ag4vzc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3148	Tempuzkd4ag4vzc.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3148	Tempuzkd4ag4vzc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1604 wrote to memory of 3148	1604	JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe	84
PID 1604 wrote to memory of 3148	1604	JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe	84
PID 3148 wrote to memory of 2184	3148	Tempuzkd4ag4vzc.exe	85
PID 3148 wrote to memory of 2184	3148	Tempuzkd4ag4vzc.exe	85
PID 2184 wrote to memory of 1828	2184	cmd.exe	87
PID 2184 wrote to memory of 1828	2184	cmd.exe	87
PID 2184 wrote to memory of 448	2184	cmd.exe	88
PID 2184 wrote to memory of 448	2184	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50009ad06a8632a37995f4a94dc76278.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1604
- C:\Users\Admin\AppData\Local\Tempuzkd4ag4vzc.exe
  "C:\Users\Admin\AppData\Local\Tempuzkd4ag4vzc.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\02EeN02qtsLy.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2184
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:1828
  - - C:\Windows\system32\PING.EXE
      ping -n 10 localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\02EeN02qtsLy.bat

Filesize
207B

MD5
6928dba06ad822c1cc80e8edf4a33ffa

SHA1
ba39e6be153e262e1a7ef0c50eb444a1b0230499

SHA256
8e499f619f9af85093c8c1486428ea7c545c324c82d0f6134a153aeb17fb1847

SHA512
fda14a7e95f45ae2dce1725542300b472430f1766af7f1b6764b7fc6d961f6f09ba3e7eea9ba87a4cb798a98dff96c7da43d6e8da12c38926e8ce7ab5eecd9a3

Download Submit
C:\Users\Admin\AppData\Local\Tempuzkd4ag4vzc.exe

Filesize
530KB

MD5
65db4c1db9e3e805f3d64075c1ec2462

SHA1
4f45cd138718bbba73382ff3f1dd7b91e612b5ba

SHA256
a83311053c76e3a3688b5798d9ed1c6ba9cd918b7188e0285cafdcb282820498

SHA512
28b7470916ce0e083ec182c66296a9f76523aacb5ecde8fc047e0cc955ab50dcba911803ef23b2186af3c3b4d8f64c4b1b94632d396c789b425b75105028626a

Download Submit
memory/1604-0-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/1604-1-0x0000000000120000-0x0000000000128000-memory.dmp

Filesize
32KB

Download
memory/1604-3-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/1604-26-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/3148-14-0x00007FFCC1D73000-0x00007FFCC1D75000-memory.dmp

Filesize
8KB

Download
memory/3148-15-0x0000000000A20000-0x0000000000AAA000-memory.dmp

Filesize
552KB

Download
memory/3148-16-0x00007FFCC1D70000-0x00007FFCC2831000-memory.dmp

Filesize
10.8MB

Download
memory/3148-17-0x000000001BA10000-0x000000001BA60000-memory.dmp

Filesize
320KB

Download
memory/3148-18-0x000000001BB20000-0x000000001BBD2000-memory.dmp

Filesize
712KB

Download
memory/3148-23-0x00007FFCC1D70000-0x00007FFCC2831000-memory.dmp

Filesize
10.8MB

Download