Behavioral task
behavioral1
Sample
NEAS.2023-09-28_cfba31fa2f5cfba6c90dd640fce4a5b5_cryptolocker.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEAS.2023-09-28_cfba31fa2f5cfba6c90dd640fce4a5b5_cryptolocker.exe
Resource
win10v2004-20231020-en
General
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Target
NEAS.2023-09-28_cfba31fa2f5cfba6c90dd640fce4a5b5_cryptolocker.exe
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Size
31KB
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MD5
cfba31fa2f5cfba6c90dd640fce4a5b5
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SHA1
a63ec15b1bbf000af5d988f0a5dbb87c2fd53a4f
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SHA256
d8b5b08635d904dce567f0a4a05f194f269491c7936506dcf09129c76179a2d1
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SHA512
b286c44a71a979aa433be9173a7df3cc657f4e5105dfe8b8c052c08051d02670d7e48065c0c85eed679a8498cfb7f6702b9e7114357183b7b24661d5b9db74d3
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SSDEEP
768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axe:qUmnpomddpMOtEvwDpjjaYak
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource NEAS.2023-09-28_cfba31fa2f5cfba6c90dd640fce4a5b5_cryptolocker.exe unpack001/out.upx
Files
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NEAS.2023-09-28_cfba31fa2f5cfba6c90dd640fce4a5b5_cryptolocker.exe.exe windows:5 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
Sections
UPX0 Size: - Virtual size: 32KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows:5 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
Sections
.text Size: 11KB - Virtual size: 11KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ