Behavioral task
behavioral1
Sample
nasmw.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
nasmw.exe
Resource
win10v2004-20230220-en
General
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Target
nasmw.exe
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Size
115KB
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MD5
caebe7102d757b54b1ad99f8aec513a1
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SHA1
7ef0379e348252e2f385d6b1f005968562c5cfb2
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SHA256
0563e24e115353716954bab8a2062e4f44f0c36d93f74a648990ae1e2f61a6c8
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SHA512
d8ce59fcb55317c6b684b26f81d0c8ee1233517826bcbc02844dd17f6664ec5fb53e8bad55f2426eafca6a1254f7e67fe20bae23f2d95716a6248efd2d252702
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SSDEEP
3072:xkp1sWOI8BqL908/dkmQ/MLmYOlJdZzL0+YLl4:ypWI8N0ymQ4LOlPtg+ol
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource nasmw.exe
Files
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nasmw.exe.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Sections
UPX0 Size: - Virtual size: 240KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 114KB - Virtual size: 116KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE