Behavioral task
behavioral1
Sample
windowsinstaller-kb893803-nec98-jpn_820b58df919f1843a549e10d5507c5f8633da342.exe
Resource
win10v2004-20240419-es
General
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Target
windowsinstaller-kb893803-nec98-jpn_820b58df919f1843a549e10d5507c5f8633da342.exe
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Size
1.6MB
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MD5
8f3a11640c0e3e899dbdc883eb9b79bb
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SHA1
2b52929c0ae61bb3e35ed084508745c7ded3d327
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SHA256
c858874090be999f9ec6c851ef5511829e44df29e37edef7012fb7dd6a6a5884
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SHA512
f0fea43fc56056e2ef51b182bfa70c550a9401c51259aaff227aa59c65033704adae9179533914245df06c9e307e6a1e804c3ed10a3e4e2b9fbf134bd1e5e965
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SSDEEP
24576:vggVEgsmqwelpk62n71WNgat0sq14zZVYn6VBaPGjnIfLL/PjMQJ6AcbiQJ5QQ:4iC/rk62xWNol+5gOsLLnjMPjiQJ5QQ
Malware Config
Signatures
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Detect Neshta payload 1 IoCs
resource yara_rule sample family_neshta -
Neshta family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource windowsinstaller-kb893803-nec98-jpn_820b58df919f1843a549e10d5507c5f8633da342.exe
Files
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windowsinstaller-kb893803-nec98-jpn_820b58df919f1843a549e10d5507c5f8633da342.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 29KB - Virtual size: 28KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 42KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 8B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ