Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/06/2026, 03:48
Behavioral task
behavioral1
Sample
creditoenlinea.com.co.exe
Resource
win10v2004-20260513-en
11 signatures
150 seconds
General
- Target creditoenlinea.com.co.exe
- Size 3.1MB
- Sample260629-eczeeadx2n
- SHA256 1402595447bc1eba4844852eb3cd39e6e6b38d8abf779e21bee4f5812b8239a6
- MD5 51ce5196b3b213204d1d157a7121694a
- SHA1 8a91416597031a14b567d90a4dbd7a6227f37982
- SHA512 d3bbcebb335026093d8d2654a4b10acde64d88ea3e3e9a4460d8d9e56634b4034370a2faca56642a05315aa2d5588910aa215f9907bb1a0ab7251e3eb69951fe
- SSDEEP 49152:7vzvE2H5aweBHPbl6T/yGaqA6/HVE+oG5eTHHB72eh2NT:7vDE2H5aweBHPbl6T/DaqA6/HVR
- TLSH T174E55A1437F85E32E16FE2B3E5B0511263F0F86AF363EB1B5181677A1C93B4498426A7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
creditoenlinea.com.co:443
-
www.creditoenlinea.com.co:443
-
creditoenlinea.com.co:80
-
www.creditoenlinea.com.co:80
Mutex
-
b8936ded-6515-41af-9c4c-de2ea0a2b3e8
Attributes
-
encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar payload 2 IoCs
resource yara_rule behavioral2/memory/3580-1-0x0000000000F60000-0x0000000001284000-memory.dmp family_quasar behavioral2/files/0x000e00000001c5bd-15.dat family_quasar - Executes dropped EXE 2 IoCs
pid Process 6100 Client.exe 2468 Client.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 4984 schtasks.exe 3464 schtasks.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3580 creditoenlinea.com.co.exe Token: SeDebugPrivilege 6100 Client.exe Token: SeDebugPrivilege 2468 Client.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 6100 Client.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 6100 Client.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3580 wrote to memory of 4984 3580 creditoenlinea.com.co.exe 89 PID 3580 wrote to memory of 6100 3580 creditoenlinea.com.co.exe 91 PID 6100 wrote to memory of 3464 6100 Client.exe 93 - 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\creditoenlinea.com.co.exe"C:\Users\Admin\AppData\Local\Temp\creditoenlinea.com.co.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3580 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4984
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:6100 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:3464
-
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2468
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
- Size 3.1MB
- SHA256 1402595447bc1eba4844852eb3cd39e6e6b38d8abf779e21bee4f5812b8239a6
- MD5 51ce5196b3b213204d1d157a7121694a
- SHA1 8a91416597031a14b567d90a4dbd7a6227f37982
- SHA512 d3bbcebb335026093d8d2654a4b10acde64d88ea3e3e9a4460d8d9e56634b4034370a2faca56642a05315aa2d5588910aa215f9907bb1a0ab7251e3eb69951fe
- SSDEEP 49152:7vzvE2H5aweBHPbl6T/yGaqA6/HVE+oG5eTHHB72eh2NT:7vDE2H5aweBHPbl6T/DaqA6/HVR
- TLSH T174E55A1437F85E32E16FE2B3E5B0511263F0F86AF363EB1B5181677A1C93B4498426A7
- MD5 SHA1 SHA512 SSDEEP TLSH