Static task
static1
Behavioral task
behavioral1
Sample
BwUpDate.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
BwUpDate.exe
Resource
win10v2004-20230221-en
General
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Target
BwUpDate.exe
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Size
265KB
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MD5
a1b2c10920b866d7b9ff54207c5434c2
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SHA1
daae0d0d9fc99a7debafc96b56c6ece92bdbac6e
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SHA256
c7b8212fa4b62ba465555f789a2eb6bc155dc0821a188a87e68ced1f5584fc86
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SHA512
769506dd7336c5579dc872a37d2a40bbc7944e1fb58d3b6a3ba407dbf07ea08f812c2102601ef2e79018229efa15c7cc5f0c7f6ee2bcc21e185408b779191ab0
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SSDEEP
6144:s1vyAkR1/MdVpMf8CA6SIufZmab88CAxa:e6vR1uMJA6SIucabMAxa
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource BwUpDate.exe
Files
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BwUpDate.exe.exe windows 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: 196KB - Virtual size: 196KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 68KB - Virtual size: 67KB
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