Analysis
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max time kernel
119s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-12-2024 13:40
Static task
static1
Behavioral task
behavioral1
Sample
4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe
Resource
win7-20240903-en
General
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Target
4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe
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Size
1.8MB
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MD5
3c2e26d10fa55af2e913120df3b7eddb
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SHA1
a6ba8c6378d44616d7196331c6ea54e286136ce6
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SHA256
4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985
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SHA512
be0d54efddd550dd9acc996df86ff2dc86a8fb50aa84e7d018736d16e06a97c746c2a3b92f70b56773fa791fe3b6ba365d676ed7683cd8f82738b2743d2a82c6
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SSDEEP
49152:kA8icQ8TAFCy7gjmjVD6Gd1R6ESxZ9MswgY+YP7Mnr:YNFyM4VmIDS39MrGk7M
Malware Config
Signatures
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Gcleaner family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe -
Loads dropped DLL 1 IoCs
pid Process 2408 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2408 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe -
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 1 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 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2408 4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe"C:\Users\Admin\AppData\Local\Temp\4463effeb9799edfe6c07776f1e044718792fabb6ea103b9ee016e5efd21a985_Sigmanly.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2408
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\AS91FDNI\download[1].htm
Filesize1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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Filesize
1.4MB
MD5a8cf5621811f7fac55cfe8cb3fa6b9f6
SHA1121356839e8138a03141f5f5856936a85bd2a474
SHA256614a0362ab87cee48d0935b5bb957d539be1d94c6fdeb3fe42fac4fbe182c10c
SHA5124479d951435f222ca7306774002f030972c9f1715d6aaf512fca9420dd79cb6d08240f80129f213851773290254be34f0ff63c7b1f4d554a7db5f84b69e84bdd