Analysis
-
max time kernel
154s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2022 08:42
Static task
static1
Behavioral task
behavioral1
Sample
Rfq#Specification.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Rfq#Specification.exe
Resource
win10v2004-20220812-en
General
-
Target
Rfq#Specification.exe
-
Size
745KB
-
MD5
c0ae1bdaed6c274444b39455ce7b7edc
-
SHA1
99114477e80dd5cbf2b1fcfe4191d418f008bd6d
-
SHA256
d2bb757f768f97d4b45a731d867f16ab1b1c90c403ad6005757dd06086945c3e
-
SHA512
52011e7bdcb7cdb602dc65b6a5e9af28e5068124a20354c3e0e5e135d8dfcfb93a075e6c155380b0a0eccfa47d01db430dc3683e8ba86f1248717a6011c69349
-
SSDEEP
12288:sFfc+QSc61epzRDEF/inbQCOl9BP/npkszVLvtQQcwxrD8+IeXWScoBHNGmO:yfcd61GzFEtibQCOlvnpk6N9D8+IeXPc
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474
Signatures
-
BluStealer
A Modular information stealer written in Visual Basic.
-
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3248 set thread context of 840 3248 Rfq#Specification.exe 84 PID 840 set thread context of 4624 840 Rfq#Specification.exe 85 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 840 Rfq#Specification.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 3248 wrote to memory of 840 3248 Rfq#Specification.exe 84 PID 840 wrote to memory of 4624 840 Rfq#Specification.exe 85 PID 840 wrote to memory of 4624 840 Rfq#Specification.exe 85 PID 840 wrote to memory of 4624 840 Rfq#Specification.exe 85 PID 840 wrote to memory of 4624 840 Rfq#Specification.exe 85 PID 840 wrote to memory of 4624 840 Rfq#Specification.exe 85 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Rfq#Specification.exe"C:\Users\Admin\AppData\Local\Temp\Rfq#Specification.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3248 -
C:\Users\Admin\AppData\Local\Temp\Rfq#Specification.exe"C:\Users\Admin\AppData\Local\Temp\Rfq#Specification.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:840 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:4624
-
-