Behavioral task
behavioral1
Sample
Nursultan.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
Nursultan.exe
Resource
win10v2004-20240730-en
General
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Target
Nursultan.exe
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Size
3.4MB
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MD5
0f9f82607781767d36bb032b09260847
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SHA1
92996f91d7ed53466dd3edc6c543d5b1b9e8c1cf
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SHA256
90fb58399388db6e22f44e41a7c2d25e61f7ae9565b8a1b775e10a3dee0fb7ea
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SHA512
033bd502642c0f0fb89e8399aee7ca5027cb5a19530ca9f88b9594e7404faec78b7a3eaeced5cf2ff4fa5ae5c74da148cbbacabc657f9b6f70bfe073e63e6123
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SSDEEP
49152:5GX87p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpKu/nRFfjI7L0qbq:5LHTPJg8z1mKnypSbRxo9JCmD
Malware Config
Extracted
orcus
Nursultan
31.44.184.52:54370
sudo_jdu3yd4dgo4y8e1pp6azrvrqmxk9e5mb
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autostart_method
Disable
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enable_keylogger
false
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install_path
%appdata%\linecdnimage\secureuploads.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
Processes:
resource yara_rule sample orcus -
Orcus family
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Orcus main payload 1 IoCs
Processes:
resource yara_rule sample family_orcus -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Nursultan.exe
Files
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Nursultan.exe.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: 427KB - Virtual size: 426KB
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