Analysis
- max time kernel
149s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
11/10/2026, 09:03
Behavioral task
behavioral1
Sample
download2.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
download2.exe
Resource
win11ltsc2024-20260911-en
General
- Target download2.exe
- Size 3.1MB
- Sample261011-k1fvvsfa65
- SHA256 0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3
- MD5 47bec036fe26fe8d70dac48627ce1de3
- SHA1 7232d18772529973ece8cb06c7e7ba0a9dd540fd
- SHA512 0727d413a41d618ea0f1635ce21f54e6652240631efc8542a260fb2f0038d574f0a2b6852eac7fdcae9700eada29a06b241c53b1f6434a876486e81ff9def556
- SSDEEP 49152:HvyI22SsaNYfdPBldt698dBcjHdDg3zarDLoGdoTHHB72eh2NT:Hvf22SsaNYfdPBldt6+dBcjHq3I
- TLSH T1B1E54A1037F85E23E1ABE37395B0041767F1FC2AB3A3EB0B6191677A5C53B504942AA7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
quasar
-
1.4.1
-
ajaib123.vip
-
ajaib123.vip:443
-
eb5e05a5-27fb-4e3d-a84e-332dd9dd6dcb
-
encryption_key
064A791F72F1A9EEE6944D54C0499DCF8FED6648
-
install_name
svchost.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
https://ajaib123.vip
-
subdirectory
SubDir
Signatures
- Quasar payload 2 IoCs
resource yara_rule behavioral2/memory/2452-1-0x0000000000740000-0x0000000000A64000-memory.dmp family_quasar behavioral2/files/0x000e00000001c578-15.dat family_quasar - Executes a file named after a Windows system binary 1 TTPs 2 IoCs
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
description ioc Process File opened (read-only) C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe svchost.exe File opened (read-only) C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe svchost.exe - Executes dropped EXE 2 IoCs
pid Process 4840 svchost.exe 1036 svchost.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-560646293-820748483-2532804640-1000\Software\Microsoft\Windows\CurrentVersion\Run\https://ajaib123.vip = "\"C:\\Users\\Admin\\AppData\\Roaming\\SubDir\\svchost.exe\"" download2.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5684 schtasks.exe 2364 schtasks.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2452 download2.exe Token: SeDebugPrivilege 4840 svchost.exe Token: SeDebugPrivilege 1036 svchost.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2452 wrote to memory of 5684 2452 download2.exe 89 PID 2452 wrote to memory of 4840 2452 download2.exe 91 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\download2.exe"C:\Users\Admin\AppData\Local\Temp\download2.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2452 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "https://ajaib123.vip" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:5684
-
-
C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe"C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe"2⤵
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4840 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "https://ajaib123.vip" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2364
-
-
-
C:\Users\Admin\AppData\Roaming\SubDir\svchost.exeC:\Users\Admin\AppData\Roaming\SubDir\svchost.exe1⤵
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1036
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe
- Size 3.1MB
- SHA256 0fdf8b638918ac7a04c36e6ea150548dcd245caa8674601c8a9d5905e77f9bc3
- MD5 47bec036fe26fe8d70dac48627ce1de3
- SHA1 7232d18772529973ece8cb06c7e7ba0a9dd540fd
- SHA512 0727d413a41d618ea0f1635ce21f54e6652240631efc8542a260fb2f0038d574f0a2b6852eac7fdcae9700eada29a06b241c53b1f6434a876486e81ff9def556
- SSDEEP 49152:HvyI22SsaNYfdPBldt698dBcjHdDg3zarDLoGdoTHHB72eh2NT:Hvf22SsaNYfdPBldt6+dBcjHq3I
- TLSH T1B1E54A1037F85E23E1ABE37395B0041767F1FC2AB3A3EB0B6191677A5C53B504942AA7
- MD5 SHA1 SHA512 SSDEEP TLSH