Behavioral task
behavioral1
Sample
123xxx.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
123xxx.exe
Resource
win10v2004-20230915-en
General
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Target
123xxx.exe
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Size
907KB
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MD5
8a8708ed2507d0907e08f10185d17bce
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SHA1
6a3007eecffea8b616474e3a3f2a17660a567a22
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SHA256
cdb7d368e382d1b82628e58928866e50683a194fc88308195a008225ab48b7e7
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SHA512
f669d113ec12591af393c0ea7e662757d82d92c9ee3943dd39fc40e99621606c46ab3acc5ae8f4d7717391a195728fd9afa26e2e15d71aa5ac76d1fdf75bc744
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SSDEEP
12288:Wgfe07KFML7iLMucoUe7dG1lFlWcYT70pxnnaaoawn7ueuRAxrZNrI0AilFEvxH9:/tY4MROxnFH9+rZlI0AilFEvxHiGWw
Malware Config
Extracted
orcus
de2.localto.net:41509
258334e365604d3ca90aaafdbf31c4c7
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autostart_method
Registry
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enable_keylogger
false
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install_path
%programfiles%\systemw\DSRHost.exe
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reconnect_delay
10000
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registry_keyname
DSRHost
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taskscheduler_taskname
DSRHost
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watchdog_path
AppData\OrcusWatchdog.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 123xxx.exe
Files
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123xxx.exe.exe windows:4 windows 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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 902KB - Virtual size: 901KB
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