General
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Target
4cddd43497d70799c80160e0cb491ecff783fadc16f4c04a5fdfdabf36800c3c
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Size
147KB
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Sample
231209-ap1e1sfca9
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MD5
f7e686458b83e38384088c2b9d72d4e4
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SHA1
b285160fd10e0679954818dc6e600a6ad23a2e7f
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SHA256
6224395120976d9c5666ad96bcb4307ff9fd006e7ea5e55acf6e3d96e4f6b265
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SHA512
483f3b8cb3dc4aa39cde92427cfdffc6e18a29bb469ddf84bccb0e182b7a494a0a470ff07dbad7587695554e011eca7ddb2dfde08d24cc08e752aa1f83750be8
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SSDEEP
3072:a8+l2kP19Hdcfro6m3zn1PebrcIsvy7fir7XlssNZMjf6GeMzV2:VIxLdcfrszBMcIc0fQ7XlssNif6L62
Static task
static1
Behavioral task
behavioral1
Sample
4cddd43497d70799c80160e0cb491ecff783fadc16f4c04a5fdfdabf36800c3c.exe
Resource
win7-20231025-en
Behavioral task
behavioral2
Sample
4cddd43497d70799c80160e0cb491ecff783fadc16f4c04a5fdfdabf36800c3c.exe
Resource
win10v2004-20231130-en
Malware Config
Extracted
smokeloader
up3
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.nbzi
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offline_id
csCsb6cUvy0iMa6NgGCGH0hSfXQlGjZVEmFVkgt1
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payload_url
http://brusuax.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
risepro
193.233.132.51
Targets
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Target
4cddd43497d70799c80160e0cb491ecff783fadc16f4c04a5fdfdabf36800c3c
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Size
229KB
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MD5
d2d1e1b1dcbf18ae9bbc6fe5170876db
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SHA1
6d3232f5015603579cb8fee2378a752a9caf8f2b
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SHA256
4cddd43497d70799c80160e0cb491ecff783fadc16f4c04a5fdfdabf36800c3c
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SHA512
1055dd4ac813b1042a959c2e722685457d6f25caf5eb20eef305f3ec18727261ee3d27ba9e4aec17e6db93d481b1598187d2886a46043f4a4c3a6f5593d919cd
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SSDEEP
3072:618dWgTWf207xpSqf4KibrcIsvy7fV7RGF7oGiWHOK:DEgTL0+LcIc0fVY1BH
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detect ZGRat V1
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Detected Djvu ransomware
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PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Downloads MZ/PE file
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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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Deletes itself
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Drops startup file
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Executes dropped EXE
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Modifies file permissions
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Accesses Microsoft Outlook profiles
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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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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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AutoIT Executable
AutoIT scripts compiled to PE executables.
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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 v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
1Virtualization/Sandbox Evasion
1