Overview
overview
10Static
static
3BugSplat64.dll
windows7-x64
10BugSplat64.dll
windows10-2004-x64
10PO202501B.exe
windows7-x64
10PO202501B.exe
windows10-2004-x64
10vcruntime140.dll
windows7-x64
1vcruntime140.dll
windows10-2004-x64
1vcruntime140_1.dll
windows7-x64
1vcruntime140_1.dll
windows10-2004-x64
1vcruntime211.dll
windows7-x64
1vcruntime211.dll
windows10-2004-x64
1Analysis
-
max time kernel
149s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
19/02/2025, 10:12
Static task
static1
Behavioral task
behavioral1
Sample
BugSplat64.dll
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
BugSplat64.dll
Resource
win10v2004-20250217-en
Behavioral task
behavioral3
Sample
PO202501B.exe
Resource
win7-20241023-en
Behavioral task
behavioral4
Sample
PO202501B.exe
Resource
win10v2004-20250217-en
Behavioral task
behavioral5
Sample
vcruntime140.dll
Resource
win7-20241010-en
Behavioral task
behavioral6
Sample
vcruntime140.dll
Resource
win10v2004-20250217-en
Behavioral task
behavioral7
Sample
vcruntime140_1.dll
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
vcruntime140_1.dll
Resource
win10v2004-20250217-en
Behavioral task
behavioral9
Sample
vcruntime211.dll
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
vcruntime211.dll
Resource
win10v2004-20250217-en
General
-
Target
BugSplat64.dll
-
Size
8.5MB
-
MD5
1ff0255fb75d95d65da33e95cc93d871
-
SHA1
5e59e19d377381faa9c842b3abc53cd1d15c6451
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SHA256
b28a3906a0ea16e8766f9c14ed934e1f689cf5b0d95c5463bd3e4de97873c046
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SHA512
b4c693f3499be2a7b38f68caf9241f7f3fe917b329e480420270e342c7a7d398747700ee33de05e08b52bc5ca3b4636ade3a01cc299006d01f0c4cb88a4ceaa4
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SSDEEP
98304:1gaqeCWnlBVJKsWZiV5wn6dMPdXPE7m2PPf1Gf6:iaqeznl/wsWZiVG6I2NGf
Malware Config
Extracted
Protocol: smtp- Host:
mail.groupscrea.com - Port:
587 - Username:
[email protected] - Password:
cletus1905@
Extracted
vipkeylogger
Signatures
-
VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 csc.exe Key opened \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 csc.exe Key opened \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 csc.exe -
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 12 reallyfreegeoip.org 13 reallyfreegeoip.org 1 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2108 set thread context of 2864 2108 rundll32.exe 86 -
System Location Discovery: System Language Discovery 1 TTPs 1 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 csc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2864 csc.exe 2864 csc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2864 csc.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2108 wrote to memory of 3796 2108 rundll32.exe 85 PID 2108 wrote to memory of 3796 2108 rundll32.exe 85 PID 2108 wrote to memory of 3796 2108 rundll32.exe 85 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 PID 2108 wrote to memory of 2864 2108 rundll32.exe 86 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 csc.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 csc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\BugSplat64.dll,#11⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2108 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"2⤵PID:3796
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2864
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