Analysis
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max time kernel
94s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
18-12-2024 10:40
General
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Target
f86nrrc6.exe
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Size
6.9MB
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MD5
f2a50f1b081ea3cd4821195676adacf1
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SHA1
f57f61d9e455b0a30399dd36d97234bb6fd12802
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SHA256
9446296c74c2843600e6dccb68316ba93494c7eca4053de766bd237a0ff37279
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SHA512
b057bedb7067d3ca91f31152bbf34126cad8d29437b83656118ea5807b4f195a3270a0578f51cb8c961b9212c31c71b758865a1cf74c5b4e0bd99a5ddd2b9a58
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SSDEEP
98304:ISTkuyh2weEjW9a3JXwPhxAL+ikiYDCsPtWgYGI+4IPF6scqr/Api3RixLe7J:IP2D/83iiW2AtWxbm5ApiYxLe7J
Malware Config
Extracted
stealc
stok
http://185.215.113.206
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url_path
/c4becf79229cb002.php
Signatures
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Stealc
Stealc is an infostealer written in C++.
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Stealc family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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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.
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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.
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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 cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Browser Information Discovery 1 TTPs
Enumerate browser information.
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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.
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Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f86nrrc6.exe"C:\Users\Admin\AppData\Local\Temp\f86nrrc6.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
13.4MB
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Filesize
4KB
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Filesize
13.4MB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
13.4MB
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Filesize
4KB
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Filesize
4KB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
13.4MB
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Filesize
4KB
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Filesize
13.4MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
13.4MB