Behavioral task
behavioral1
Sample
SolaraBootstraper.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
SolaraBootstraper.exe
Resource
win10v2004-20240426-en
General
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Target
SolaraBootstraper.exe
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Size
230KB
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MD5
8832030e178eae26096cecf0d25a40cb
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SHA1
589dd17f269dfe876c1f3c33565e7fc1a4fbb144
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SHA256
f71b8728c67c2e2303ba9acdef9cca342a66cdc519a8351da401dc057b3d742f
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SHA512
0b0db2f052f415804ed26da1ea441937124c382ee867f5be8f023c6c95f4923f381d559d46903370513aa5d9e9e6560886cff51f8539d2e42a21c966980b0913
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SSDEEP
3072:3qFFFMhY15l6tbAXdCON+Kt8SKfbzxcwg7es6/Vsb8VKTu549oJMfF/H9N3Ky9NP:BY15libkUhcX7elbKTua9bfF/H9d9n
Malware Config
Extracted
xworm
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Install_directory
%AppData%
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install_file
win32.exe
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pastebin_url
https://pastebin.com/raw/mxJuykEA
Signatures
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Detect Xworm Payload 1 IoCs
resource yara_rule sample family_xworm -
Xworm family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource SolaraBootstraper.exe
Files
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SolaraBootstraper.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 63KB - Virtual size: 62KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 166KB - Virtual size: 166KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ