Behavioral task
behavioral1
Sample
A.exe
Resource
win7-20230220-en
General
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Target
A.exe.bin
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Size
222KB
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MD5
8104093918b6f2d2004535b24b1533ba
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SHA1
f9cf4ae46a44ab7a39f35614167b2be9f1d66460
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SHA256
337a646e6f1a641d9471b840ee21bff858e6ba24538a4f815191be85e5003e70
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SHA512
d43dc6e765a528755d1004b591d580c8d3e5a49800980dab1073848f26c67c0350fe560762b46a3602e799ea8ee861bcc4f829020d5479e48c8ed6871fd139a1
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SSDEEP
6144:O1vaKFbcprS5qlrCkxLjgmOA05HTr7N1DPz:SaKFbcVS5FUOAe7r
Malware Config
Signatures
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Nirsoft 1 IoCs
resource yara_rule static1/unpack001/out.upx Nirsoft -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule static1/unpack001/out.upx WebBrowserPassView -
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource A.exe.bin unpack001/out.upx
Files
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A.exe.bin.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 292KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 212KB - Virtual size: 212KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 9KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 308KB - Virtual size: 307KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 43KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 101KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 33KB - Virtual size: 33KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ