Behavioral task
behavioral1
Sample
eso.zip
Resource
win10v2004-20230621-en
Behavioral task
behavioral2
Sample
Eso/eso.exe
Resource
win10v2004-20230621-en
General
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Target
eso.zip
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Size
488KB
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MD5
5b7ba3ac4455127187bc6315b4449b82
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SHA1
5c86aa87244d7df15e4db371e7b106e071e2a1c4
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SHA256
5fbf33aed96a1f86243b8e7e0f6d2f8e6a0c035bc139ca1b7c7cbebe4aae74c8
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SHA512
b49b62dc1cc2cd211760132d8eada986548327656cc9ede2940b7cb7f0c5597a10ee362e3169499434396de6cad1e6da34c44d2b7ff869a0ea1f16b4966ddcd7
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SSDEEP
12288:S4iWOMV1eEeZPqxnBlLjmGt4zYXO8lbDkUl+8SfGXPrfeJ8J:9nOMVheZPqx3GS4zYXO2Bc8SfSK2J
Malware Config
Signatures
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resource yara_rule static1/unpack001/Eso/eso.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Eso/eso.exe unpack002/out.upx
Files
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eso.zip.zip
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Eso/Readme.txt
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Eso/eso.exe.exe windows x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 488KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 284KB - Virtual size: 288KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 50KB - Virtual size: 52KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 512KB - Virtual size: 512KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 54KB - Virtual size: 54KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 26KB - Virtual size: 105KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 77KB - Virtual size: 76KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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Eso/eso.ini