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Analysis
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max time kernel
151s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/10/2022, 08:30
Static task
static1
Behavioral task
behavioral1
Sample
41570002689_20221001_05352297_HesapOzeti.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
41570002689_20221001_05352297_HesapOzeti.exe
Resource
win10v2004-20220812-en
General
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Target
41570002689_20221001_05352297_HesapOzeti.exe
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Size
1.1MB
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MD5
6a58925feb3fe5477f8c44595d2c36cd
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SHA1
1b9565b62bee0d29a4f21eb617a88e9682e09862
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SHA256
19b0d58c3611ccc99f681997248a835ac4a49572a50278f4f7c732237183db6a
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SHA512
fd83cb7cc2e9234f46f7b355a9ff66d26354adf1ba520d51ea3c95cf88ad6e618927d5c04ffa4248d887ad534d24b56a1485eeb6fbb40f603737012ff5898cde
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SSDEEP
12288:o/r9+ljmhNLbDYmcIZQWDA9aHZVIAodG21+sq+AJkZnfYHVKyGr3CQK4HTN2i8E6:EsljMLbDYquFY0o+A2ZwhGraJ
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5412597166:AAGUaWxuTxxhNb-NRhiURcTMzuW9nhGoEs/sendMessage?chat_id=932962718
Signatures
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BluStealer
A Modular information stealer written in Visual Basic.
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
resource yara_rule behavioral2/memory/4588-153-0x0000000001180000-0x000000000119A000-memory.dmp family_stormkitty -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 41570002689_20221001_05352297_HesapOzeti.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 38 icanhazip.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1356 set thread context of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1868 set thread context of 4588 1868 41570002689_20221001_05352297_HesapOzeti.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 AppLaunch.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier AppLaunch.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5048 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 1356 41570002689_20221001_05352297_HesapOzeti.exe 3964 powershell.exe 3964 powershell.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1868 41570002689_20221001_05352297_HesapOzeti.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1356 41570002689_20221001_05352297_HesapOzeti.exe Token: SeDebugPrivilege 3964 powershell.exe Token: SeDebugPrivilege 4588 AppLaunch.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1868 41570002689_20221001_05352297_HesapOzeti.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 1356 wrote to memory of 3964 1356 41570002689_20221001_05352297_HesapOzeti.exe 91 PID 1356 wrote to memory of 3964 1356 41570002689_20221001_05352297_HesapOzeti.exe 91 PID 1356 wrote to memory of 3964 1356 41570002689_20221001_05352297_HesapOzeti.exe 91 PID 1356 wrote to memory of 5048 1356 41570002689_20221001_05352297_HesapOzeti.exe 93 PID 1356 wrote to memory of 5048 1356 41570002689_20221001_05352297_HesapOzeti.exe 93 PID 1356 wrote to memory of 5048 1356 41570002689_20221001_05352297_HesapOzeti.exe 93 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1356 wrote to memory of 1868 1356 41570002689_20221001_05352297_HesapOzeti.exe 95 PID 1868 wrote to memory of 4588 1868 41570002689_20221001_05352297_HesapOzeti.exe 96 PID 1868 wrote to memory of 4588 1868 41570002689_20221001_05352297_HesapOzeti.exe 96 PID 1868 wrote to memory of 4588 1868 41570002689_20221001_05352297_HesapOzeti.exe 96 PID 1868 wrote to memory of 4588 1868 41570002689_20221001_05352297_HesapOzeti.exe 96 PID 1868 wrote to memory of 4588 1868 41570002689_20221001_05352297_HesapOzeti.exe 96 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221001_05352297_HesapOzeti.exe"C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221001_05352297_HesapOzeti.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZFkIYZK.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3964
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZFkIYZK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp83D1.tmp"2⤵
- Creates scheduled task(s)
PID:5048
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C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221001_05352297_HesapOzeti.exe"C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221001_05352297_HesapOzeti.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4588
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5f579e7202a8774e0ebba46ae07597241
SHA1715bb320bf82ef3aebc1e77f7c47369504e6f391
SHA256c5f245f3e039e8fa683226d1d1037c97d05c0b500441a1eeefb59b331d99e980
SHA512656678cce49d28231df81914835244c5910e076f60c5342bf79b84fb0205de6e2712a70b2454b78f988e78fa085941cff2ed6cbe689cd8589ff1c0c5f634ca00