Behavioral task
behavioral1
Sample
Visual C++ Redist (x64).exe
Resource
win7-20230220-en
General
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Target
Visual C++ Redist (x64).exe
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Size
3.1MB
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MD5
d5c3bcc07ed188f8ad02b3671184e76a
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SHA1
5502546397226e043605aa331196ed73c5394548
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SHA256
3cfeff542e0b4f952369516566b67fe95dc2d79dab6d7cb5dc399b609395bf54
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SHA512
201d152c36f7367675af5f9c2c823fae7617987e215fda0e12eac4c12bf0ab96dedcddcb6e46bc6f1b3b83c07c22af48451e2bf8d76945882a8ea9a04b40266e
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SSDEEP
49152:ucUjQZKMR9kmWg8LXoI9ahqmK0fEAypQxbyo9JnCme8ArCXII6iEFCvxHP:uDjXSSJg8zomah1KqypSbyo9JCm5
Malware Config
Extracted
orcus
127.0.0.1:10134
b59cd5ae9a4e4817a52088189ca08282
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autostart_method
TaskScheduler
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enable_keylogger
true
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install_path
%programfiles%\Microsoft\VisualCppUpdater.exe
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reconnect_delay
0
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registry_keyname
Orcus
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taskscheduler_taskname
VisualCpp
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watchdog_path
AppData\VisualCppUpdater.exe
Signatures
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Orcurs Rat Executable 1 IoCs
resource yara_rule sample orcus -
Orcus family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Visual C++ Redist (x64).exe
Files
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Visual C++ Redist (x64).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: 3.0MB - Virtual size: 3.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 168KB - Virtual size: 168KB
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