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Analysis
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max time kernel
117s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
10/03/2025, 11:06
Static task
static1
Behavioral task
behavioral1
Sample
Transferencia - BBVA 20250310.pdf(45KB).com.exe
Resource
win7-20240903-en
General
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Target
Transferencia - BBVA 20250310.pdf(45KB).com.exe
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Size
461KB
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MD5
344c5f114ab236568f1c76668510c0ea
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SHA1
135a155a0676b648e1c8ad4e2a9853dfddfb83c1
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SHA256
810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c
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SHA512
7bc72f6189a0020c3f40a8b79dc440065c80c4efbd3fc96ac53f8b76eb431e33d427d1e543e7af22bb1a6baec24750b0d72e6677788c033e7acd23b1b0a40c20
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SSDEEP
6144:ZjybI1JDNqbPuSsq2Bq0u4cQfPZqzfgkPmLiJ0vC52h8Vunr0cTjGz0Am1NKYg9:YfhT0u4x/kuLV6Ah8ww6j9VW
Malware Config
Extracted
xworm
esetnode32-antiviru.ydns.eu:59012
rency.ydns.eu:59012
wqo9.firewall-gateway.de:59012
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Install_directory
%AppData%
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install_file
Window Session Manager.exe
Signatures
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Detect Xworm Payload 5 IoCs
resource yara_rule behavioral1/memory/2256-19-0x0000000000400000-0x0000000000414000-memory.dmp family_xworm behavioral1/memory/2256-17-0x0000000000400000-0x0000000000414000-memory.dmp family_xworm behavioral1/memory/2256-15-0x0000000000400000-0x0000000000414000-memory.dmp family_xworm behavioral1/memory/2256-11-0x0000000000400000-0x0000000000414000-memory.dmp family_xworm behavioral1/memory/2256-9-0x0000000000400000-0x0000000000414000-memory.dmp family_xworm -
Xworm family
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Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Session Manager.lnk Transferencia - BBVA 20250310.pdf(45KB).com.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Session Manager.lnk Transferencia - BBVA 20250310.pdf(45KB).com.exe -
Loads dropped DLL 1 IoCs
pid Process 2256 Transferencia - BBVA 20250310.pdf(45KB).com.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2276 set thread context of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 -
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 Transferencia - BBVA 20250310.pdf(45KB).com.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Transferencia - BBVA 20250310.pdf(45KB).com.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe Token: SeDebugPrivilege 2256 Transferencia - BBVA 20250310.pdf(45KB).com.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2276 wrote to memory of 1692 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 31 PID 2276 wrote to memory of 1692 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 31 PID 2276 wrote to memory of 1692 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 31 PID 2276 wrote to memory of 1692 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 31 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32 PID 2276 wrote to memory of 2256 2276 Transferencia - BBVA 20250310.pdf(45KB).com.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"2⤵PID:1692
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C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"2⤵
- Drops startup file
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2256
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
461KB
MD5344c5f114ab236568f1c76668510c0ea
SHA1135a155a0676b648e1c8ad4e2a9853dfddfb83c1
SHA256810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c
SHA5127bc72f6189a0020c3f40a8b79dc440065c80c4efbd3fc96ac53f8b76eb431e33d427d1e543e7af22bb1a6baec24750b0d72e6677788c033e7acd23b1b0a40c20