General
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Target
6CB2CCD975A8A10FB54C0A407C2F8BE6.exe
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Size
270KB
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Sample
231207-wlvw1sfe6z
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MD5
6cb2ccd975a8a10fb54c0a407c2f8be6
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SHA1
ff24085242fe52b5b59d5dd08a9698fcfea11aca
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SHA256
142aacbf783038ea4b2a7f2d9433b1309b413330e702b8a90e300eea1bbed4c8
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SHA512
e581dd1d87027bb97f71d2fadf352243390e154c931dcaa963a6b988426d6a8a39389239c88dfe0216520e3ad500f7564269899fde1e029361d378de475ca0e5
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SSDEEP
3072:S7cAUflrRS52tq7MjWGLSGEmNcJwJgpiDTmV0f5toMF4zrrVydGhvU2d:Wc5FqSq7AWG2scoTmVS4fpyd
Static task
static1
Behavioral task
behavioral1
Sample
6CB2CCD975A8A10FB54C0A407C2F8BE6.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
6CB2CCD975A8A10FB54C0A407C2F8BE6.exe
Resource
win10v2004-20231127-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
6CB2CCD975A8A10FB54C0A407C2F8BE6.exe
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Size
270KB
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MD5
6cb2ccd975a8a10fb54c0a407c2f8be6
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SHA1
ff24085242fe52b5b59d5dd08a9698fcfea11aca
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SHA256
142aacbf783038ea4b2a7f2d9433b1309b413330e702b8a90e300eea1bbed4c8
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SHA512
e581dd1d87027bb97f71d2fadf352243390e154c931dcaa963a6b988426d6a8a39389239c88dfe0216520e3ad500f7564269899fde1e029361d378de475ca0e5
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SSDEEP
3072:S7cAUflrRS52tq7MjWGLSGEmNcJwJgpiDTmV0f5toMF4zrrVydGhvU2d:Wc5FqSq7AWG2scoTmVS4fpyd
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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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Deletes itself
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Drops startup file
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Executes dropped EXE
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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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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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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
2Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
1