Behavioral task
behavioral1
Sample
Arsenic.zip
Resource
win7-20230705-en
General
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Target
Arsenic.zip
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Size
12.6MB
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MD5
d855573af0c6b20d57550bb9402fb0c0
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SHA1
5f5c64a1a3656e201e018b8c831d7c8eadada6f7
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SHA256
49baf01ac7b25976cc78119c8c9f80f28f5fa45bac6def9f4bdc9793c9b2c960
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SHA512
3b3f2a64a811b620c47487652cfbb26dd64b4f6afad593eb2e193e2ad6ff5424ccdbb91179444395d3734661d1b33986474dcfc9de859de5629637c848681933
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SSDEEP
393216:rpPwyqbOxaZVo9G5LfbTKg2KYY+IUiXMVZ:rpPSbwaZVo9G5Lv2KCucH
Malware Config
Signatures
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Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
resource yara_rule static1/unpack001/Arsenic/extatent.dll agile_net -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Arsenic/Arsenic.exe unpack001/Arsenic/extatent.dll
Files
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Arsenic.zip.zip
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Arsenic/Arsenic.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 12.7MB - Virtual size: 12.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 110KB - Virtual size: 109KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Arsenic/extatent.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorDllMain
Sections
.text Size: 48KB - Virtual size: 47KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ