Behavioral task
behavioral1
Sample
SolaraBootstrapper.exe
Resource
win11-20240611-fr
General
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Target
SolaraBootstrapper.exe
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Size
75KB
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MD5
87e2e203db08fc338151d86e4025e173
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SHA1
d77adbaad0557ccb4f0ea5373644f90f14ac0a36
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SHA256
958fe1725fcd3e30b68935279059a60ed19894fe1a076795760a92a529c15b59
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SHA512
659f199d60ff97dd1bd16ed8c4ea9e33ad53b3deb19de0af22dc43aafbb880a075b789a6c8ea7f1479ca8eea6251411199b9b02032c37c4dd2a0fffc05c34d05
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SSDEEP
1536:7rIeyEmKZ4NAVHOlKQN00NmbMUVoc96C1zfOfjnKPPrJRN:7rIlIiNAFc0VbMstOjUD3N
Malware Config
Extracted
xworm
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Install_directory
%AppData%
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install_file
Microsoft Corporation.exe
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pastebin_url
https://pastebin.com/raw/4yPKcYq7
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 SolaraBootstrapper.exe
Files
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SolaraBootstrapper.exe.exe .ps1 windows:4 windows x86 arch:x86 polyglot
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: 72KB - Virtual size: 72KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
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