Behavioral task
behavioral1
Sample
for4s.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
for4s.exe
Resource
win10v2004-20240221-en
General
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Target
for4s.rar
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Size
83.6MB
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MD5
a055c8c2be59b9e88f8d66cdd1f3588b
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SHA1
d28ee4163942515e8ef99e3ba011ba54f9685c04
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SHA256
f648a208e5e8d6669c6319e6bde2f8c75c6eb8e378ebf98db0bf66647528d521
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SHA512
046171011718888fcfe9f7a850947263ee2bc34bff2e3dc4c545c610a2c49af2b765d3fb79028352281c951ced4b32c6a466a48b16f88576cf0065b087f55d7d
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SSDEEP
1572864:WGRUcCe75F+3C5r3YrVUeTLGaxa9IEWDR/bnDuSou+bB8piehEIoKxL:WGRme75Iyp3ST8IzBDdf+SEvO
Malware Config
Signatures
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resource yara_rule static1/unpack001/for4s.exe upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/for4s.exe
Files
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for4s.rar.rar
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for4s.exe.exe windows:5 windows x64 arch:x64
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
Sections
UPX0 Size: - Virtual size: 224KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 126KB - Virtual size: 128KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 61KB - Virtual size: 64KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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