Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
09/03/2026, 08:51
Static task
static1
Behavioral task
behavioral1
Sample
Fatura.exe
Resource
win10v2004-20260129-en
Behavioral task
behavioral2
Sample
Fatura.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
General
- Target Fatura.exe
- Size 664KB
- Sample260309-kr9ftacs7j
- SHA256 c301f73e763173ccfec4bef1df2f9ea35e5d483cded5bc6d87813bb0df53d1c8
- MD5 63d447c1cf2bac0ea4c313c39d8c133e
- SHA1 846b7bb80ecbc6ab4b4ccd74604fc4058148bf84
- SHA512 bd6fd17e509e2f8daddd750e6f290d3a24b6b1cbe89c7d6baa2719441e12b3e741557ae33e7ecadffb253058f268401e07641c2790c8313e8a4d06b1ef3b232d
- SSDEEP 12288:xL2FyV3yC/KoErt+93mpIIcL1wWUx1usXMfv1zEzZQ+Erd:xLoyV3yQACwM11Ux14fv1zEF8
- TLSH T1BBE401156AE7C433C9940B700426D6BE6B2A6D4428D143077FD0BE9FF9772924E3EE86
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
Protocol
smtp
-
Host
webmail.intecsa.pe
-
Port
587
-
Username
-
Password
Intecsa!23
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
webmail.intecsa.pe
-
Port
587
-
Username
-
Password
Intecsa!23
-
Email to
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Vipkeylogger family
- Loads dropped DLL 2 IoCs
pid Process 4772 Fatura.exe 4772 Fatura.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 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fatura.exe Key opened \REGISTRY\USER\S-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fatura.exe Key opened \REGISTRY\USER\S-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fatura.exe - Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
flow ioc 1 drive.google.com 2 drive.google.com - Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 checkip.dyndns.org 1 reallyfreegeoip.org 9 reallyfreegeoip.org - Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 5412 Fatura.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4772 Fatura.exe 5412 Fatura.exe - Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\Affaldsbortskaffelsesomraaderne126\Salgsuddannelse.ini Fatura.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 Fatura.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Fatura.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5412 Fatura.exe 5412 Fatura.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4772 Fatura.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5412 Fatura.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4772 wrote to memory of 5588 4772 Fatura.exe 79 PID 4772 wrote to memory of 5412 4772 Fatura.exe 80 PID 4772 wrote to memory of 5412 4772 Fatura.exe 80 PID 5412 wrote to memory of 1092 5412 Fatura.exe 81 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fatura.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fatura.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Fatura.exe"C:\Users\Admin\AppData\Local\Temp\Fatura.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4772 -
C:\Users\Admin\AppData\Local\Temp\Fatura.exe"C:\Users\Admin\AppData\Local\Temp\Fatura.exe"2⤵PID:5588
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C:\Users\Admin\AppData\Local\Temp\Fatura.exe"C:\Users\Admin\AppData\Local\Temp\Fatura.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
- outlook_win_path
PID:5412 -
C:\Users\Admin\AppData\Local\Temp\Fatura.exe"C:\Users\Admin\AppData\Local\Temp\Fatura.exe"3⤵PID:1092
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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\nsu778D.tmp\System.dll
- Size 12KB
- SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
- MD5 0d7ad4f45dc6f5aa87f606d0331c6901
- SHA1 48df0911f0484cbe2a8cdd5362140b63c41ee457
- SHA512 c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
- SSDEEP 192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6
- TLSH T1BA428E12977049F2F1A0183C10A67F265FBEAE5C1BE445A39FE380867D652DF9436343
- MD5 SHA1 SHA512 SSDEEP TLSH