Analysis
- max time kernel
300s - max time network
138s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/08/2026, 00:59
Static task
static1
Behavioral task
behavioral1
Sample
Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260709-en
General
- Target Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
- Size 218KB
- Sample260827-bb663sga22
- SHA256 1de0fa738e7cf0b9cf92e509dd72dd50fa5d8e4c74f770f629be3c69e77fe740
- MD5 818aeb0c3f6b82e285cd1bd0ad5d90cc
- SHA1 545e9dd43e4f91c6b7445c57b0920b87064e77c3
- SHA512 16be13acc18537c19b65c819c60edbf40f15dcf605fdef85411f792191016dbf34baf6040df8b8189ee12f48351c25b4497adbf5e6c0664c35b72bd739e4588f
- SSDEEP 3072:YNRCywDw1DiJkuqh1ZtgZWQ2aVnOAlRo8FFgJgZ3TKKt4ExOPBkFYLaKSGvAZCbX:YT4DteltgZWQ2aV9aU3XLxuk6La+kCbX
- TLSH T11624D001B216C516CEA046304D12A6AF5AB19E693D309B3F0F30FE4BBFBAEC35815759
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.dankely.org
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Port
21
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Username
-
Password
!?jSK$}v08$[
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Loads dropped DLL 1 IoCs
pid Process 5760 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 ip-api.com - Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 3124 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 5760 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe 3124 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\resources\0409\connector\prolabor.txt Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3124 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe 3124 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 5760 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3124 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 5760 wrote to memory of 3416 5760 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe 89 PID 5760 wrote to memory of 3124 5760 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe 90 PID 5760 wrote to memory of 3124 5760 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe 90 PID 3124 wrote to memory of 2684 3124 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe 91 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5760 -
C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"2⤵PID:3416
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C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
PID:3124 -
C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"3⤵PID:2684
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Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nscE3F3.tmp\System.dll
- Size 12KB
- SHA256 b7823a15e7b1866ba3d77248f750b66505859d264cfc39d8c8c5e812f8ae4a81
- MD5 a1da6788aeaf78ca4ae1dece8019e49d
- SHA1 d770155e6e9aa69223be198c44a8da26a1756d89
- SHA512 eada9c1528563ddfe3d4d8ed5dbc52b85a9190765535b68da90e6d623288bf0090adac5118e1ed6e3cb3e0abb9af025d3a2a73121413a4471a90fd04bc861e18
- SSDEEP 192:uenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBUIwL:u8+Qlt70Fj/lQRY/9Vjj+L
- TLSH T144428D1193B089F2F590583801A67F2A6FBEAC5C27E84963CFE341853D702DFA47A243
- MD5 SHA1 SHA512 SSDEEP TLSH