Analysis
- max time kernel
149s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/07/2026, 03:36
Static task
static1
Behavioral task
behavioral1
Sample
PO #54321.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
PO #54321.exe
Resource
win11ltsc2024-20260706-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260706-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11ltsc2024-20260706-en
General
- Target PO #54321.exe
- Size 350KB
- Sample260709-d53f4ac17s
- SHA256 795fee999993e22fae8da87b93bb31177a8383a18b53e122cab3b42b6abaf5b8
- MD5 dba38cd8669ea13aab4dec465f7c97ba
- SHA1 42021a0c7ba87ab9f5dbf6e5458100123d05865a
- SHA512 de47d7b222472de6d0589793210464e3d613052d6916f487ac69d59727b9cb2e92e66e9b8a46c17a56144e95ec58fae36ecad63a772910c5bcdb45f0b7e1f9ef
- SSDEEP 6144:SgORaspjQel7km82cdrTxE0fhm9DuZkOqNcvutxRoz6R+8FKRDMzd:Sgyjz7kXFrT9f4DuZ3qautxmz6R+q4
- TLSH T17574C0A1F29984D9EC46237159BBEC3325577E2CA875051F316B3729AEB33830467E0B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.holzbrenzii.com
-
Port
587
-
Username
-
Password
boygirl123456
-
Email to
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Loads dropped DLL 1 IoCs
pid Process 1200 PO #54321.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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-1-5-21-515251955-468707340-1782030364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO #54321.exe - Looks up external IP address via web service 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 4200 PO #54321.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1200 PO #54321.exe 4200 PO #54321.exe - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Lymphocyst\Amfibiebaadens92.ini PO #54321.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 PO #54321.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PO #54321.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4200 PO #54321.exe 4200 PO #54321.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1200 PO #54321.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4200 PO #54321.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1200 wrote to memory of 5456 1200 PO #54321.exe 88 PID 1200 wrote to memory of 4200 1200 PO #54321.exe 89 PID 1200 wrote to memory of 4200 1200 PO #54321.exe 89 PID 4200 wrote to memory of 1888 4200 PO #54321.exe 91 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-515251955-468707340-1782030364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO #54321.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO #54321.exe"C:\Users\Admin\AppData\Local\Temp\PO #54321.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:1200 -
C:\Users\Admin\AppData\Local\Temp\PO #54321.exe"C:\Users\Admin\AppData\Local\Temp\PO #54321.exe"2⤵PID:5456
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-
C:\Users\Admin\AppData\Local\Temp\PO #54321.exe"C:\Users\Admin\AppData\Local\Temp\PO #54321.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:4200 -
C:\Users\Admin\AppData\Local\Temp\PO #54321.exe"C:\Users\Admin\AppData\Local\Temp\PO #54321.exe"3⤵PID:1888
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-
Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nslC50D.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