Behavioral task
behavioral1
Sample
femto_Slave_v1.73.zip
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
femto_Slave_v1.73.zip
Resource
win10v2004-20221111-en
Behavioral task
behavioral3
Sample
femto.Runtime.dll
Resource
win7-20221111-en
Behavioral task
behavioral4
Sample
femto.Runtime.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral5
Sample
femto.exe
Resource
win7-20221111-en
General
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Target
femto_Slave_v1.73.zip
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Size
3.4MB
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MD5
b1cbbf4475e3c757de34fb15b98c3645
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SHA1
d4ce2482b6193700275f68a2284c34bbca8dbd05
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SHA256
c12320a1e1fc40e9c7af6cd7dc8a40cb91fdc32dea24b6f1c552d64b1956517d
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SHA512
d73944c32c503b242a768c30aa9d5b0db880b992286adec6af85d4f95cc1e3c35bd266c116e6be28a73863835adddef40f75ee4393628e2114a8b4ec4bc7e991
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SSDEEP
98304:zgWfwwNmzVCOLglsNQFOzdVeCbbGGhzRqb1jee49FG:1HytLgGNQiSCbbFqR/oFG
Malware Config
Signatures
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Obfuscated with Agile.Net obfuscator 2 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
resource yara_rule static1/unpack001/femto.Runtime.dll agile_net static1/unpack001/femto.exe agile_net
Files
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femto_Slave_v1.73.zip.zip
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femto.Runtime.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_32BIT_MACHINE
Imports
mscoree
_CorDllMain
Sections
.text Size: 161KB - Virtual size: 160KB
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
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femto.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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 4.2MB - Virtual size: 4.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 27KB - Virtual size: 27KB
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