General
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Target
WEXTRACT.exe
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Size
1.5MB
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Sample
231228-fvt33sefgn
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MD5
12382062c6abc23ebdf6aec25f383fa4
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SHA1
9834dc9a4fd1f037c574c27a932c96d68409c882
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SHA256
24b66c0d6f26f5de09b4cb7a2496bf87ad0ed9d45e846870dee70941b565bc3c
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SHA512
6cd21a5803f7a90d3ea2b1c6a05def58e337773378c0aced7ac9d3538fa1f9a539b4c992bbe7655aa052abd88cde1bc8475a3a780187ac25edba89ba5806f55c
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SSDEEP
49152:/I4a/fuUWyY2dhl3pmcmVFSD2TDi+SyEU/6QB4:wx/GUxmVoJvyR/6R
Static task
static1
Behavioral task
behavioral1
Sample
WEXTRACT.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
WEXTRACT.exe
Resource
win10v2004-20231215-en
Malware Config
Extracted
smokeloader
2022
http://77.91.68.29/fks/
Extracted
redline
grome
77.91.124.86:19084
Extracted
amadey
3.89
http://77.91.124.1
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install_dir
fefffe8cea
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install_file
explothe.exe
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strings_key
36a96139c1118a354edf72b1080d4b2f
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url_paths
/theme/index.php
Targets
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Target
WEXTRACT.exe
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Size
1.5MB
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MD5
12382062c6abc23ebdf6aec25f383fa4
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SHA1
9834dc9a4fd1f037c574c27a932c96d68409c882
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SHA256
24b66c0d6f26f5de09b4cb7a2496bf87ad0ed9d45e846870dee70941b565bc3c
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SHA512
6cd21a5803f7a90d3ea2b1c6a05def58e337773378c0aced7ac9d3538fa1f9a539b4c992bbe7655aa052abd88cde1bc8475a3a780187ac25edba89ba5806f55c
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SSDEEP
49152:/I4a/fuUWyY2dhl3pmcmVFSD2TDi+SyEU/6QB4:wx/GUxmVoJvyR/6R
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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 Mystic stealer payload
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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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
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1