General
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Target
50e7c2871af6d718772a17f240b9eb5b7bde43a8f32d405e2999e7a5f809a9cf
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Size
284KB
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Sample
211022-b7lv1sbhel
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MD5
3fcd521ad809b4e04171cdc26e2802d4
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SHA1
4fa2eacac68ee3a6e4c5e0e8deb4fbe198195d8c
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SHA256
50e7c2871af6d718772a17f240b9eb5b7bde43a8f32d405e2999e7a5f809a9cf
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SHA512
121ca2dc4c6099527ef77d85dcf6afa9affeae9bc21b0f88012fa5cf4be84330146148fcff6b11d969dc32428b521fd4c3d267e06609107998c1ad45aac78832
Static task
static1
Behavioral task
behavioral1
Sample
50e7c2871af6d718772a17f240b9eb5b7bde43a8f32d405e2999e7a5f809a9cf.exe
Resource
win10-en-20210920
Malware Config
Extracted
smokeloader
2020
http://gejajoo7.top/
http://sysaheu9.top/
http://nusurtal4f.net/
http://netomishnetojuk.net/
http://escalivrouter.net/
http://nick22doom4.net/
http://wrioshtivsio.su/
http://nusotiso4.su/
http://rickkhtovkka.biz/
http://palisotoliso.net/
Extracted
redline
MRFSW
65.21.194.86:2451
Extracted
vidar
41.5
1047
https://mas.to/@xeroxxx
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profile_id
1047
Extracted
vidar
41.5
706
https://mas.to/@xeroxxx
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profile_id
706
Extracted
vidar
41.5
517
https://mas.to/@xeroxxx
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profile_id
517
Extracted
djvu
http://rlrz.org/lancer
Targets
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Target
50e7c2871af6d718772a17f240b9eb5b7bde43a8f32d405e2999e7a5f809a9cf
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Size
284KB
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MD5
3fcd521ad809b4e04171cdc26e2802d4
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SHA1
4fa2eacac68ee3a6e4c5e0e8deb4fbe198195d8c
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SHA256
50e7c2871af6d718772a17f240b9eb5b7bde43a8f32d405e2999e7a5f809a9cf
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SHA512
121ca2dc4c6099527ef77d85dcf6afa9affeae9bc21b0f88012fa5cf4be84330146148fcff6b11d969dc32428b521fd4c3d267e06609107998c1ad45aac78832
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Detected Djvu ransomware
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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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Suspicious use of NtCreateProcessExOtherParentProcess
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suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
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suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Vidar Stealer
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Downloads MZ/PE file
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Executes dropped EXE
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Deletes itself
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Loads dropped DLL
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Modifies file permissions
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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 installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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