Analysis
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max time kernel
147s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
16-04-2024 02:24
Static task
static1
Behavioral task
behavioral1
Sample
c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe
Resource
win7-20240221-en
General
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Target
c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe
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Size
2.6MB
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MD5
13c3a034cd26d3cae08b857e626157fc
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SHA1
490e2ac6001bb07e1c3f782398a388d6a91ee84b
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SHA256
c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1
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SHA512
15a187ed32dacdb2025af43dd9de0794ccb62c40d05c2a2ec17ae0a3a67ac79698f5415ab10a057cc2acfcc3ff657a12ab7234c8b443fad563665345fbb10dca
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SSDEEP
24576:QAHnh+eWsN3skA4RV1Hom2KXSmHdqf0K44JzixdvW80EXLq31gEfUvWDyBFZpxxq:Hh+ZkldoPKiYdqd6i
Malware Config
Extracted
orcus
ligeon
ligeon.ddns.net:1606
b98fb09a59c24a81b9d17a55ccf2c036
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autostart_method
Disable
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enable_keylogger
true
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install_path
%programfiles%\Orcus\Orcus.exe
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reconnect_delay
10000
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registry_keyname
Orcus
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taskscheduler_taskname
Orcus
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watchdog_path
AppData\OrcusWatchdog.exe
Signatures
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Orcurs Rat Executable 1 IoCs
resource yara_rule behavioral2/memory/4524-2-0x0000000000400000-0x00000000004EA000-memory.dmp orcus -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe Key value queried \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation setspn.exe Key value queried \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation setspn.exe -
Executes dropped EXE 2 IoCs
pid Process 556 setspn.exe 4284 setspn.exe -
AutoIT Executable 4 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/736-0-0x0000000000AB0000-0x0000000000D5A000-memory.dmp autoit_exe behavioral2/files/0x0008000000023452-23.dat autoit_exe behavioral2/memory/556-24-0x00000000005A0000-0x000000000084A000-memory.dmp autoit_exe behavioral2/memory/4284-36-0x00000000005A0000-0x000000000084A000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 736 set thread context of 4524 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 86 PID 556 set thread context of 2848 556 setspn.exe 98 PID 4284 set thread context of 2964 4284 setspn.exe 104 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4724 schtasks.exe 3160 schtasks.exe 3592 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 556 setspn.exe 556 setspn.exe 556 setspn.exe 556 setspn.exe 4284 setspn.exe 4284 setspn.exe 4284 setspn.exe 4284 setspn.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4524 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4524 RegSvcs.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 736 wrote to memory of 4524 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 86 PID 736 wrote to memory of 4524 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 86 PID 736 wrote to memory of 4524 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 86 PID 736 wrote to memory of 4524 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 86 PID 736 wrote to memory of 4524 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 86 PID 736 wrote to memory of 3592 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 87 PID 736 wrote to memory of 3592 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 87 PID 736 wrote to memory of 3592 736 c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe 87 PID 556 wrote to memory of 2848 556 setspn.exe 98 PID 556 wrote to memory of 2848 556 setspn.exe 98 PID 556 wrote to memory of 2848 556 setspn.exe 98 PID 556 wrote to memory of 2848 556 setspn.exe 98 PID 556 wrote to memory of 2848 556 setspn.exe 98 PID 556 wrote to memory of 4724 556 setspn.exe 99 PID 556 wrote to memory of 4724 556 setspn.exe 99 PID 556 wrote to memory of 4724 556 setspn.exe 99 PID 4284 wrote to memory of 2964 4284 setspn.exe 104 PID 4284 wrote to memory of 2964 4284 setspn.exe 104 PID 4284 wrote to memory of 2964 4284 setspn.exe 104 PID 4284 wrote to memory of 2964 4284 setspn.exe 104 PID 4284 wrote to memory of 2964 4284 setspn.exe 104 PID 4284 wrote to memory of 3160 4284 setspn.exe 105 PID 4284 wrote to memory of 3160 4284 setspn.exe 105 PID 4284 wrote to memory of 3160 4284 setspn.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe"C:\Users\Admin\AppData\Local\Temp\c4cd5c0d946bce563843ac18c61c373b6265df3923f69bd3c80cd22c6f7c85b1.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:736 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4524
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:3592
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C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exeC:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:556 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:2848
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:4724
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C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exeC:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4284 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:2964
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:3160
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD50672db2ef13237d5cb85075ff4915942
SHA1ad8b4d3eb5e40791c47d48b22e273486f25f663f
SHA2560a933408890369b5a178f9c30aa93d2c94f425650815cf8e8310de4e90a3b519
SHA51284ad10ba5b695567d33a52f786405a5544aa49d8d23631ba9edf3afa877c5dbd81570d15bcf74bce5d9fb1afad2117d0a4ef913b396c0d923afefe615619c84b
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Filesize
2.6MB
MD53e904795b37fb4279723dd16a43811c6
SHA1e6932cd2a9d5f801378c5d88d4ff57f111fa8941
SHA25646292c6d7f08e3a9bdc673550c275797b158fa860409c9895bf96e09156de281
SHA5126a09dee2e9fdce359802b5839db7f7f2d6666357442b1a736da321d65bf4b88e8ca685a07cc2597b520cd5944fb558fd007e62b2a11f03f8c2cca4e8c4c81ac9