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Behavioral task
behavioral1
Sample
a4b8e8dc8cd8ba87ea4dbb0ec4084aa26b87af1d43e515890944b3ddda396fa1.exe
Resource
win7-20240903-en
General
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Target
a4b8e8dc8cd8ba87ea4dbb0ec4084aa26b87af1d43e515890944b3ddda396fa1
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Size
3.0MB
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MD5
0fed205ff4de6471fd70a1a9e1d3e7f4
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SHA1
22f23c43f2db706c0947f6445224fa7e5d577b6b
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SHA256
a4b8e8dc8cd8ba87ea4dbb0ec4084aa26b87af1d43e515890944b3ddda396fa1
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SHA512
04794d96227b2f08303d3cc546067e65fde5fe0fc0ce1ed996c84ea625719618828cb58cc2df3021feb5aee0fe5fe52ec2f8232828b33b411ba24622f6baf0e1
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SSDEEP
49152:Cs7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpau/nRFfjI7L0qb:CsHTPJg8z1mKnypSbRxo9JCm
Malware Config
Extracted
orcus
Delta
31.44.184.52:62475
sudo_tb0uqiiknmbti2a0rrne8qryxvvtyw3k
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autostart_method
Disable
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enable_keylogger
false
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install_path
%appdata%\eternaldefault\jsupdate.exe
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reconnect_delay
10000
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registry_keyname
Sudik
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taskscheduler_taskname
sudik
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watchdog_path
AppData\aga.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 a4b8e8dc8cd8ba87ea4dbb0ec4084aa26b87af1d43e515890944b3ddda396fa1
Files
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a4b8e8dc8cd8ba87ea4dbb0ec4084aa26b87af1d43e515890944b3ddda396fa1.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: 3.0MB - Virtual size: 3.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 4KB - Virtual size: 3KB
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