Analysis
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max time kernel
143s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25-04-2024 01:21
Static task
static1
Behavioral task
behavioral1
Sample
055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe
Resource
win7-20240221-en
General
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Target
055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe
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Size
2.6MB
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MD5
30e6c469c3a8bab115b69f45a6cedaf4
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SHA1
0e41e9e0026a75cbad35b954a53e16b8520182e5
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SHA256
055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda
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SHA512
f13de2ed7d11874092b4f3d604347a7836d676a264f89cd4eb4586c55349c4739ccfdfa96eba78dafef169ddc9d266b21896c0b92543676178ca2adf389f0362
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SSDEEP
24576:QAHnh+eWsN3skA4RV1Hom2KXSmHdqf0K44JzixdvW80EXLq31gEfUvWDyBFZpxxk:Hh+ZkldoPKiYdqd6M
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 2 IoCs
resource yara_rule behavioral2/memory/3172-2-0x0000000000400000-0x00000000004EA000-memory.dmp orcus behavioral2/memory/4328-31-0x0000000005120000-0x0000000005130000-memory.dmp orcus -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation setspn.exe -
Executes dropped EXE 2 IoCs
pid Process 4548 setspn.exe 1164 setspn.exe -
AutoIT Executable 4 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/4832-0-0x0000000000940000-0x0000000000BEA000-memory.dmp autoit_exe behavioral2/files/0x000800000002326d-22.dat autoit_exe behavioral2/memory/4548-23-0x0000000000160000-0x000000000040A000-memory.dmp autoit_exe behavioral2/memory/1164-35-0x0000000000160000-0x000000000040A000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4832 set thread context of 3172 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 91 PID 4548 set thread context of 4328 4548 setspn.exe 104 PID 1164 set thread context of 2340 1164 setspn.exe 108 -
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 1692 schtasks.exe 1536 schtasks.exe 2364 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 4548 setspn.exe 4548 setspn.exe 4548 setspn.exe 4548 setspn.exe 1164 setspn.exe 1164 setspn.exe 1164 setspn.exe 1164 setspn.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3172 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3172 RegSvcs.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 4832 wrote to memory of 3172 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 91 PID 4832 wrote to memory of 3172 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 91 PID 4832 wrote to memory of 3172 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 91 PID 4832 wrote to memory of 3172 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 91 PID 4832 wrote to memory of 3172 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 91 PID 4832 wrote to memory of 1692 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 92 PID 4832 wrote to memory of 1692 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 92 PID 4832 wrote to memory of 1692 4832 055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe 92 PID 4548 wrote to memory of 4328 4548 setspn.exe 104 PID 4548 wrote to memory of 4328 4548 setspn.exe 104 PID 4548 wrote to memory of 4328 4548 setspn.exe 104 PID 4548 wrote to memory of 4328 4548 setspn.exe 104 PID 4548 wrote to memory of 4328 4548 setspn.exe 104 PID 4548 wrote to memory of 1536 4548 setspn.exe 105 PID 4548 wrote to memory of 1536 4548 setspn.exe 105 PID 4548 wrote to memory of 1536 4548 setspn.exe 105 PID 1164 wrote to memory of 2340 1164 setspn.exe 108 PID 1164 wrote to memory of 2340 1164 setspn.exe 108 PID 1164 wrote to memory of 2340 1164 setspn.exe 108 PID 1164 wrote to memory of 2340 1164 setspn.exe 108 PID 1164 wrote to memory of 2340 1164 setspn.exe 108
Processes
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C:\Users\Admin\AppData\Local\Temp\055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe"C:\Users\Admin\AppData\Local\Temp\055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4832 -
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:3172
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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:1692
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4440 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:81⤵PID:3284
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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:4548 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:4328
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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:1536
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C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exeC:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1164 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:2340
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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:2364
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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
MD5cc7ecfad0a6ec0dc93181e07c5f8ba17
SHA172f85b7c5e9345f5d68254480625fdf93801a4dd
SHA25625f1f5f64f8bd45feedaece386f293b0375ec8fb73856dffae1c42e37f0d7f55
SHA51206cc30b61e99b4e9da1ba749643417047c5ae3902f518e81bd11bc2059418b05271807e2e1b1bd408a6bc8679bd5bfc01a313e0e88ed93a56d65051bbaa362c9