Analysis
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max time kernel
71s -
max time network
35s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-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
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Target
Rfq#Specification.exe
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Size
745KB
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MD5
c0ae1bdaed6c274444b39455ce7b7edc
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SHA1
99114477e80dd5cbf2b1fcfe4191d418f008bd6d
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SHA256
d2bb757f768f97d4b45a731d867f16ab1b1c90c403ad6005757dd06086945c3e
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SHA512
52011e7bdcb7cdb602dc65b6a5e9af28e5068124a20354c3e0e5e135d8dfcfb93a075e6c155380b0a0eccfa47d01db430dc3683e8ba86f1248717a6011c69349
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SSDEEP
12288:sFfc+QSc61epzRDEF/inbQCOl9BP/npkszVLvtQQcwxrD8+IeXWScoBHNGmO:yfcd61GzFEtibQCOlvnpk6N9D8+IeXPc
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474
Signatures
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BluStealer
A Modular information stealer written in Visual Basic.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
AppLaunch.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Rfq#Specification.exeRfq#Specification.exedescription pid process target process PID 1292 set thread context of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 584 set thread context of 360 584 Rfq#Specification.exe AppLaunch.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Rfq#Specification.exepid process 584 Rfq#Specification.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
Rfq#Specification.exeRfq#Specification.exedescription pid process target process PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 1292 wrote to memory of 584 1292 Rfq#Specification.exe Rfq#Specification.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe PID 584 wrote to memory of 360 584 Rfq#Specification.exe AppLaunch.exe -
outlook_office_path 1 IoCs
Processes:
AppLaunch.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
Processes:
AppLaunch.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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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
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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
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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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/360-72-0x0000000000130000-0x0000000000196000-memory.dmpFilesize
408KB
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memory/360-81-0x0000000000880000-0x000000000093C000-memory.dmpFilesize
752KB
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memory/360-79-0x0000000000130000-0x0000000000196000-memory.dmpFilesize
408KB
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memory/360-77-0x0000000000130000-0x0000000000196000-memory.dmpFilesize
408KB
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memory/360-75-0x000000000018FA3E-mapping.dmp
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memory/360-74-0x0000000000130000-0x0000000000196000-memory.dmpFilesize
408KB
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memory/584-64-0x0000000000400000-0x000000000046E000-memory.dmpFilesize
440KB
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memory/584-62-0x0000000000400000-0x000000000046E000-memory.dmpFilesize
440KB
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memory/584-65-0x0000000000401A1C-mapping.dmp
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memory/584-67-0x0000000000400000-0x000000000046E000-memory.dmpFilesize
440KB
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memory/584-71-0x0000000000400000-0x000000000046E000-memory.dmpFilesize
440KB
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memory/584-60-0x0000000000400000-0x000000000046E000-memory.dmpFilesize
440KB
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memory/584-59-0x0000000000400000-0x000000000046E000-memory.dmpFilesize
440KB
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memory/584-82-0x0000000000400000-0x000000000046E000-memory.dmpFilesize
440KB
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memory/1292-54-0x0000000000BD0000-0x0000000000C90000-memory.dmpFilesize
768KB
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memory/1292-58-0x0000000004C80000-0x0000000004CF4000-memory.dmpFilesize
464KB
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memory/1292-57-0x00000000054E0000-0x000000000558A000-memory.dmpFilesize
680KB
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memory/1292-56-0x0000000000420000-0x0000000000438000-memory.dmpFilesize
96KB
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memory/1292-55-0x00000000759C1000-0x00000000759C3000-memory.dmpFilesize
8KB