vipkeylogger | 372dc76e6d84b69619af43c61f21cb2fa5e0cd5ff8d0025c00858c16854ad077

General

Target

BugSplat64.dll
Size

14.2MB
MD5

946cefc76131918251e84ff417ad4736
SHA1

e2f711559b08889426eb22d2ff6756e52c2c719d
SHA256

c543557199efbd13ac131a7a4676660bce4ba9d06109af6464d22c44935c86a1
SHA512

62cbf241f4d266c3f1952bdcee16e54a0b9dfd4632b7d7cc6befd6d7c94d999349bb26088625bbb08d5d93c9450b5c59dade17b17231c4515d995e8ccbbc17a5
SSDEEP

196608:yUt2dD+yDfThRq5mt931hN8clGkkizbqup+d:yUt2t+yDHqq7YriKupA

Score

10^/10

vipkeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7328132851:AAGjxJzgHhOy6CKcH2zQWuOPw-Si4v2MtvU/sendMessage?chat_id=7467176655

Signatures

VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.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
4	checkip.dyndns.org
8	reallyfreegeoip.org
9	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 2920	2816	rundll32.exe	30

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices	rundll32.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2920	AddInProcess32.exe
2920	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	rundll32.exe
Token: SeDebugPrivilege	2920	AddInProcess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30
PID 2816 wrote to memory of 2920	2816	rundll32.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\BugSplat64.dll,#1
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.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:2920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

1

T1217

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2816-0-0x0000000000120000-0x0000000000130000-memory.dmp

Filesize
64KB

Download
memory/2920-3-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2920-6-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2920-10-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2920-8-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2920-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2920-4-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2920-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2920-1-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2920-11-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2920-12-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2920-13-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2920-14-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2920-15-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2920-16-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2920-17-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2920-18-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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