General
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Target
503a913a1c1f9ee1fd30251823beaf13
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Size
385KB
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Sample
211118-fretzsbffm
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MD5
503a913a1c1f9ee1fd30251823beaf13
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SHA1
8f2ac32d76a060c4fcfe858958021fee362a9d1e
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SHA256
2c18d41dff60fd0ef4bd2bc9f6346c6f6e0de229e872e05b30cd3e7918ca4e5e
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SHA512
17a4249d9f54c9a9f24f4390079043182a0f4855cbdaec3ef7f2426dc38c56aa74a245ceefd3e8df78a96599f82a4196dc3e20cc88f0aee7e73d058c39336995
Static task
static1
Behavioral task
behavioral1
Sample
503a913a1c1f9ee1fd30251823beaf13.exe
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
503a913a1c1f9ee1fd30251823beaf13.exe
Resource
win10-en-20211014
Malware Config
Extracted
socelars
http://www.gianninidesign.com/
Extracted
smokeloader
2020
http://membro.at/upload/
http://jeevanpunetha.com/upload/
http://misipu.cn/upload/
http://zavodooo.ru/upload/
http://targiko.ru/upload/
http://vues3d.com/upload/
Targets
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Target
503a913a1c1f9ee1fd30251823beaf13
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Size
385KB
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MD5
503a913a1c1f9ee1fd30251823beaf13
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SHA1
8f2ac32d76a060c4fcfe858958021fee362a9d1e
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SHA256
2c18d41dff60fd0ef4bd2bc9f6346c6f6e0de229e872e05b30cd3e7918ca4e5e
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SHA512
17a4249d9f54c9a9f24f4390079043182a0f4855cbdaec3ef7f2426dc38c56aa74a245ceefd3e8df78a96599f82a4196dc3e20cc88f0aee7e73d058c39336995
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload
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Socelars Payload
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Suspicious use of NtCreateProcessExOtherParentProcess
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suricata: ET MALWARE ClipBanker Variant Activity (POST)
suricata: ET MALWARE ClipBanker Variant Activity (POST)
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suricata: ET MALWARE GCleaner Downloader Activity M5
suricata: ET MALWARE GCleaner Downloader Activity M5
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suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
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suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin
suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin
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suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2
suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2
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Checks for common network interception software
Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Blocklisted process makes network request
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Downloads MZ/PE file
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Drops file in Drivers directory
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Executes dropped EXE
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Modifies Windows Firewall
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Loads dropped DLL
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v6
Persistence
BITS Jobs
1Modify Existing Service
2Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
BITS Jobs
1Disabling Security Tools
1Install Root Certificate
1Modify Registry
4Virtualization/Sandbox Evasion
1Web Service
1