Behavioral task
behavioral1
Sample
W1FREE.exe
Resource
win7-20230831-en
General
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Target
25eb09aa9566be281e084c0882acb134aa670cfec230598a40cf63605078d70c
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Size
5.0MB
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MD5
4c333e30b85e7cbc0d8e3ffeeec6ff62
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SHA1
32181c511ccf29622fd92bec5acb31d791793e5f
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SHA256
25eb09aa9566be281e084c0882acb134aa670cfec230598a40cf63605078d70c
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SHA512
0182f874bfb21be7ae941d659750d7dd3e166ebd2c174b13ccf56b8ac3105f5aa41ca08171c6778807cfa54b43cf52137cacbd776635b686cf7a135219c9e618
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SSDEEP
98304:s06c6wKYdO79LCwWmlCBqPt1CLy65BH6fWsSQR9UGKRnTySr:sS6wPdAQytq5AOZQ7KRnBr
Malware Config
Signatures
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resource yara_rule static1/unpack001/W1FREE.exe vmprotect -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/W1FREE.exe
Files
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25eb09aa9566be281e084c0882acb134aa670cfec230598a40cf63605078d70c.zip
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W1FREE.exe.exe windows:6 windows x64
b64767494fdc79345e3b9a587b8b7a11
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
DeviceIoControl
GetSystemTimeAsFileTime
LocalAlloc
LocalFree
GetModuleFileNameW
GetProcessAffinityMask
SetProcessAffinityMask
SetThreadAffinityMask
Sleep
ExitProcess
FreeLibrary
LoadLibraryA
GetModuleHandleA
GetProcAddress
user32
GetAsyncKeyState
GetUserObjectInformationW
GetProcessWindowStation
GetUserObjectInformationW
advapi32
RegSetKeyValueW
shell32
ord68
msvcp140
?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ
winhttp
WinHttpQueryHeaders
ntdll
NtQuerySystemInformation
vcruntime140
__std_terminate
api-ms-win-crt-runtime-l1-1-0
system
api-ms-win-crt-string-l1-1-0
tolower
api-ms-win-crt-utility-l1-1-0
rand
api-ms-win-crt-stdio-l1-1-0
freopen
api-ms-win-crt-heap-l1-1-0
malloc
api-ms-win-crt-filesystem-l1-1-0
_wremove
api-ms-win-crt-time-l1-1-0
_time64
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
wtsapi32
WTSSendMessageW
Sections
.text Size: - Virtual size: 206KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 101KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.vmp0 Size: - Virtual size: 3.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.vmp1 Size: 5.4MB - Virtual size: 5.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 200B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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.txt