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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11/12/2024, 02:18
Static task
static1
Behavioral task
behavioral1
Sample
2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
General
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Target
2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe
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Size
979KB
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MD5
b42344ed3b26fedfcafd2a8626557723
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SHA1
632b82c943b1c3b293a164df76eb7d94391ba0f7
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SHA256
2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3
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SHA512
ee22dfb0e084ac77050aee6fea65373f71c96f43e7da14655bfa6487bdf2332fc6aa9581927abc2880318513e695c48d355bd1499733dc3a6f850b63a2b8fc4e
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SSDEEP
24576:9jwKCNozIZAO5i1XamIP2J5k0++IHsoQastZ1Pkm:V1CiUb5kXN0Kk9+IHXzsnWm
Malware Config
Signatures
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Guloader family
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Disables Task Manager via registry modification
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Loads dropped DLL 2 IoCs
pid Process 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 18 drive.google.com 17 drive.google.com -
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 31 checkip.dyndns.org -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 1268 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 1268 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1876 set thread context of 1268 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 84 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1268 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1268 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1876 wrote to memory of 1268 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 84 PID 1876 wrote to memory of 1268 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 84 PID 1876 wrote to memory of 1268 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 84 PID 1876 wrote to memory of 1268 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 84 PID 1876 wrote to memory of 1268 1876 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe 84 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe"C:\Users\Admin\AppData\Local\Temp\2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1876 -
C:\Users\Admin\AppData\Local\Temp\2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe"C:\Users\Admin\AppData\Local\Temp\2755e95a38fb5e5b3af3aea557601b9261004a3201219dfb704e28e60a06dfa3.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1268
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
12KB
MD50d7ad4f45dc6f5aa87f606d0331c6901
SHA148df0911f0484cbe2a8cdd5362140b63c41ee457
SHA2563eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
SHA512c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9