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Analysis
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max time kernel
146s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
10/03/2025, 12:15
Static task
static1
Behavioral task
behavioral1
Sample
21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe
Resource
win7-20240903-en
General
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Target
21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe
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Size
636KB
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MD5
37ef4f24015c203f1f703e634ab7abe3
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SHA1
bf007a685cdc77adcec7e214659934b8b7264f25
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SHA256
21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326
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SHA512
9ff7deb7b9ad9c994a5c0243a1339b558e065b4fce83882ec02932b6e734e7b49d4541215d7dcf40558fd25486ededeaa78a945c335de0e3af95c146506e14e9
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SSDEEP
12288:5fcXgNO7W7X28o3knVj0pZnON0zFbfvDm/RAGCP0I+m4SW:ZSWOS6z+Iyqzm/SHP0I+m4n
Malware Config
Extracted
xworm
doe.ydns.eu:5901
wqo9.firewall-gateway.de:5901
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Install_directory
%AppData%
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install_file
MicroSoftEdge.exe
Signatures
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Detect Xworm Payload 5 IoCs
resource yara_rule behavioral1/memory/2664-17-0x0000000000400000-0x0000000000416000-memory.dmp family_xworm behavioral1/memory/2664-13-0x0000000000400000-0x0000000000416000-memory.dmp family_xworm behavioral1/memory/2664-11-0x0000000000400000-0x0000000000416000-memory.dmp family_xworm behavioral1/memory/2664-19-0x0000000000400000-0x0000000000416000-memory.dmp family_xworm behavioral1/memory/2664-21-0x0000000000400000-0x0000000000416000-memory.dmp family_xworm -
Xworm family
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MicroSoftEdge.lnk 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MicroSoftEdge.lnk 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe -
Loads dropped DLL 1 IoCs
pid Process 2664 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1696 set thread context of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 -
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 2 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 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2664 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33 PID 1696 wrote to memory of 2664 1696 21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe"C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe"C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe"2⤵
- Drops startup file
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2664
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:2440
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
636KB
MD537ef4f24015c203f1f703e634ab7abe3
SHA1bf007a685cdc77adcec7e214659934b8b7264f25
SHA25621b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326
SHA5129ff7deb7b9ad9c994a5c0243a1339b558e065b4fce83882ec02932b6e734e7b49d4541215d7dcf40558fd25486ededeaa78a945c335de0e3af95c146506e14e9