Static task
static1
Behavioral task
behavioral1
Sample
cpcrs.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
cpcrs.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
csrss.exe
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
csrss.exe
Resource
win10v2004-20240226-en
General
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Target
d897f07ae6f42de8f35e2b05f5ef5733d7ec599d5e786d3225e66ca605a48f53
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Size
228KB
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MD5
36dc2a5bab2665c88ce407d270954d04
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SHA1
b658bc902fa8b47475271b5802428d39b4e3297b
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SHA256
d897f07ae6f42de8f35e2b05f5ef5733d7ec599d5e786d3225e66ca605a48f53
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SHA512
a9208e8777aaae5f315739e73b69f299ad20563fe24e9c9f522b9514c4177e9280328fe575b4c98b2bd95e5ecd21fce0307693fd3aa49fcacb352d2530909664
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SSDEEP
6144:QbqNIPH61K3Txr+pGvQb+kUDIctYaCiNx4:xNyH6I3TJGUcctFq
Malware Config
Signatures
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Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/cpcrs.exe unpack001/csrss.exe
Files
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d897f07ae6f42de8f35e2b05f5ef5733d7ec599d5e786d3225e66ca605a48f53.zip
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cpcrs.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
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
_CorExeMain
Sections
.text Size: 418KB - Virtual size: 418KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
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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csrss.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
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
_CorExeMain
Sections
.text Size: 411KB - Virtual size: 411KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ