vipkeylogger | 525248e53005e0ec5a39b4aa00c2323e9f5be5a256ddd944707aba1b3dedba58

General

Target

pre-stowage.PDF.scr.exe
Size

886KB
MD5

68dfd91fce9ad3d728a7c25716990edd
SHA1

6a6843531a77b77892813360b3daf0b0bbfea8c2
SHA256

525248e53005e0ec5a39b4aa00c2323e9f5be5a256ddd944707aba1b3dedba58
SHA512

cb16e579c818d63d4be0798211ef3d4f36728804280920d4508366d5a65c2c6c237452fc7cce112c8baba49f481b89c132e9accee541eab26424bfd80df63049
SSDEEP

12288:GqktMolx2euSXxT4lfsvAt75PAXfZ0mA4t3Rx5Z5MpaXv0cWP2vMPku+l0CPP:gtZPpXStlaRNJJRb8pqvmPd+p

Score

10^/10

vipkeylogger collection discovery evasion execution keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
760	powershell.exe

Disables Task Manager via registry modification
evasion
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pre-stowage.PDF.scr.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pre-stowage.PDF.scr.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pre-stowage.PDF.scr.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2324 set thread context of 2704	2324	pre-stowage.PDF.scr.exe	33

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pre-stowage.PDF.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pre-stowage.PDF.scr.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2704	pre-stowage.PDF.scr.exe
760	powershell.exe
2704	pre-stowage.PDF.scr.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	pre-stowage.PDF.scr.exe
Token: SeDebugPrivilege	760	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 760	2324	pre-stowage.PDF.scr.exe	31
PID 2324 wrote to memory of 760	2324	pre-stowage.PDF.scr.exe	31
PID 2324 wrote to memory of 760	2324	pre-stowage.PDF.scr.exe	31
PID 2324 wrote to memory of 760	2324	pre-stowage.PDF.scr.exe	31
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33
PID 2324 wrote to memory of 2704	2324	pre-stowage.PDF.scr.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pre-stowage.PDF.scr.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pre-stowage.PDF.scr.exe

C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe
"C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:760
- C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.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:2704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Browser Information Discovery

1

T1217

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2324-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2324-1-0x0000000001390000-0x0000000001474000-memory.dmp

Filesize
912KB

Download
memory/2324-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2324-3-0x0000000000CF0000-0x0000000000D16000-memory.dmp

Filesize
152KB

Download
memory/2324-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2324-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2324-6-0x0000000000390000-0x000000000041E000-memory.dmp

Filesize
568KB

Download
memory/2324-22-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-9-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2704-12-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2704-15-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2704-17-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2704-21-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-20-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2704-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2704-7-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2704-23-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-26-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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