Behavioral task
behavioral1
Sample
7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe
Resource
win7-20240221-en
General
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Target
7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e
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Size
918KB
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MD5
de8e68b535ec5e52cf9869f8da859b51
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SHA1
5dbbaff2683785332ba1efa276865d6f874d0e1b
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SHA256
7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e
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SHA512
8f5b291c889d66222bef4bdefa846315ef37f8139271ea9a89bc6296955109fed10a90e65fb6bfe8168e78d14262066bc769adf5cdc15fc996af039dba196ef4
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SSDEEP
24576:fVQg4MROxnFD3irXYf1rrcI0AilFEvxHP+ooU:dmMiJ/rrcI0AilFEvxHP
Malware Config
Extracted
orcus
127.0.0.1:10134
316bd05012dc47dcafa9a06af7241f8a
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autostart_method
Registry
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enable_keylogger
true
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install_path
%programfiles%\Windows Defender
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reconnect_delay
10000
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registry_keyname
Windows Realtek Audio Driver
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taskscheduler_taskname
Windows Realtek Audio Driver
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watchdog_path
Temp\Windows Realtek Audio Driver.exe
Signatures
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Orcurs Rat Executable 1 IoCs
resource yara_rule sample orcus -
Orcus family
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Orcus main payload 1 IoCs
resource yara_rule sample family_orcus -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e
Files
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7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe windows:4 windows x86 arch: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: 912KB - Virtual size: 912KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 4KB - Virtual size: 4KB
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