Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2024 09:41
Static task
static1
Behavioral task
behavioral1
Sample
a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe
Resource
win7-20240903-en
General
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Target
a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe
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Size
161KB
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MD5
5152fe85bb3fb27bc5c9a03bd69cdb7d
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SHA1
f10099bbe57ee0cff489596cb04aeb914898afad
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SHA256
a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e
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SHA512
2b65a40ebc16bb7143060408d87dab84b3af86dfb33db4c0211febe32537a3ada1b0bd66f5a4741d22becc6e512b761026efd6039017694b0eecdb1b65572bd3
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SSDEEP
3072:WAl8ZMA3vR2sSN+3NZHtcKfE1RKW+zJQARhGq4y6d8loubgUMOfyrAbYp:WdRZ29+3NVmw8RK71FGIjJNq
Malware Config
Extracted
xenorat
96.126.118.61
Microsoft Windows_3371808
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delay
5000
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install_path
appdata
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port
4444
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startup_name
svchost.exe
Signatures
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Xenorat family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ svchost.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe -
Executes dropped EXE 1 IoCs
pid Process 432 svchost.exe -
resource yara_rule behavioral2/files/0x0032000000023b74-4.dat themida behavioral2/memory/432-28-0x0000000000340000-0x0000000000CE4000-memory.dmp themida behavioral2/memory/432-29-0x0000000000340000-0x0000000000CE4000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svchost.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 3 raw.githubusercontent.com 4 raw.githubusercontent.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 432 svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4492 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe 432 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 432 svchost.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4080 wrote to memory of 432 4080 a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe 83 PID 4080 wrote to memory of 432 4080 a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe 83 PID 4080 wrote to memory of 432 4080 a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe 83 PID 432 wrote to memory of 4492 432 svchost.exe 91 PID 432 wrote to memory of 4492 432 svchost.exe 91 PID 432 wrote to memory of 4492 432 svchost.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe"C:\Users\Admin\AppData\Local\Temp\a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4080 -
C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /Create /TN "svchost.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAEED.tmp" /F3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4492
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.9MB
MD59ce8e0cbb54f24de304851e0b7226c0a
SHA11db4c3d746ea0ad15e98ed3a2b96c2ca09fb1366
SHA25659cd7e7b0c1c0760cb9499775184b02d8a8e3188bacd9420b04987b0b5724eb5
SHA512fe5fd7e0f40074e45ad5a1709ff72670d47c2cb5e383cc9f6f4baccb21374a334d2ca1d970534f8815ae9a68c1e1f27b6517e3f8eb0a365b390686d61d0e97f8
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Filesize
1KB
MD51e9f25c9b09e3ccff8ed92426ee69726
SHA19078fd487ebeb8617fb03ed4a1b29a4e310f79e1
SHA256f7cd207422063ed60b798c72ce8e68990026a7f45c2a79fe4445bf8a139783c0
SHA5124713347c5fb8f30fe6e218ffc3b0b5309fc8986cf1e909b588dd1a5c139caad4fed7ef3c0a410b6147ec6c3a95b6647e25b702684ea99d1b8cf8c7b925d0e4f8