vipkeylogger | 6147316c323ae34d9bf5ada2486a9e881f056940364aeb267f316724edd506bd

General

Target

6147316c323ae34d9bf5ada2486a9e881f056940364aeb267f316724edd506bd.rtf
Size

933KB
MD5

1b78b5dae336b9bb76e7724fc9e49509
SHA1

387705200f55fd0dbd28525daaca684aeb68513c
SHA256

6147316c323ae34d9bf5ada2486a9e881f056940364aeb267f316724edd506bd
SHA512

158f6f5ec86ac0061faa20bfcf2620ac5d14c783705fc170745eb14bbeafa22ac327202bacaaf572e21fc25735d8b1fbbcc1788be0d963287d428752a628efd9
SSDEEP

6144:hwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAQ7puoNWDYh0tZKIJLoL5VKkjY6He:x+

Score

10^/10

vipkeylogger collection discovery 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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	1536	EQNEDT32.EXE

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
1812	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 3 IoCs

pid	Process
2852	caseyagooucdutch.exe
2824	caseyagooucdutch.exe
2036	caseyagooucdutch.exe

Loads dropped DLL 1 IoCs

pid	Process
1536	EQNEDT32.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.
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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caseyagooucdutch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caseyagooucdutch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caseyagooucdutch.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
5	checkip.dyndns.org

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2036	2852	caseyagooucdutch.exe	39

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

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 5 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	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	caseyagooucdutch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	caseyagooucdutch.exe

Office loads VBA resources, possible macro or embedded object present

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
1536	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2292	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2852	caseyagooucdutch.exe
2852	caseyagooucdutch.exe
2036	caseyagooucdutch.exe
1812	powershell.exe
2036	caseyagooucdutch.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	caseyagooucdutch.exe
Token: SeDebugPrivilege	2036	caseyagooucdutch.exe
Token: SeDebugPrivilege	1812	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2292	WINWORD.EXE
2292	WINWORD.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1536 wrote to memory of 2852	1536	EQNEDT32.EXE	33
PID 1536 wrote to memory of 2852	1536	EQNEDT32.EXE	33
PID 1536 wrote to memory of 2852	1536	EQNEDT32.EXE	33
PID 1536 wrote to memory of 2852	1536	EQNEDT32.EXE	33
PID 2292 wrote to memory of 2640	2292	WINWORD.EXE	35
PID 2292 wrote to memory of 2640	2292	WINWORD.EXE	35
PID 2292 wrote to memory of 2640	2292	WINWORD.EXE	35
PID 2292 wrote to memory of 2640	2292	WINWORD.EXE	35
PID 2852 wrote to memory of 1812	2852	caseyagooucdutch.exe	36
PID 2852 wrote to memory of 1812	2852	caseyagooucdutch.exe	36
PID 2852 wrote to memory of 1812	2852	caseyagooucdutch.exe	36
PID 2852 wrote to memory of 1812	2852	caseyagooucdutch.exe	36
PID 2852 wrote to memory of 2824	2852	caseyagooucdutch.exe	38
PID 2852 wrote to memory of 2824	2852	caseyagooucdutch.exe	38
PID 2852 wrote to memory of 2824	2852	caseyagooucdutch.exe	38
PID 2852 wrote to memory of 2824	2852	caseyagooucdutch.exe	38
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39
PID 2852 wrote to memory of 2036	2852	caseyagooucdutch.exe	39

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caseyagooucdutch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	caseyagooucdutch.exe

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\6147316c323ae34d9bf5ada2486a9e881f056940364aeb267f316724edd506bd.rtf"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2640

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1536
- C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe
  "C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1812
- - C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe
    "C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe"
    3⤵
    - Executes dropped EXE
    PID:2824
- - C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe
    "C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Exploitation for Client Execution

1

T1203

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

C:\Users\Admin\AppData\Roaming\caseyagooucdutch.exe

Filesize
902KB

MD5
a89f78a11aa97a16ffc7ffaf40ca4a1a

SHA1
a5f8b6de661835d4e2ca078af0a769f9202ddd8f

SHA256
9ce45a0e6299fd86783729a15caf92bd33fe424c03fdfbdc62c7f056d53aea32

SHA512
a0f8be62b841b98e9c48797f17e362b5e4f4ef02ccdd2fb7810304e62a0e56403bf6bbf28ad6a2cf7d07144d8e4463ac6d9656214d8782b683878885cc351f69

Download Submit
memory/2036-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2036-28-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2036-21-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2036-23-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2036-25-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2036-20-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2036-30-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2036-32-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2292-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2292-0-0x000000002F7B1000-0x000000002F7B2000-memory.dmp

Filesize
4KB

Download
memory/2292-15-0x00000000715FD000-0x0000000071608000-memory.dmp

Filesize
44KB

Download
memory/2292-2-0x00000000715FD000-0x0000000071608000-memory.dmp

Filesize
44KB

Download
memory/2852-17-0x0000000000490000-0x000000000051C000-memory.dmp

Filesize
560KB

Download
memory/2852-16-0x0000000000890000-0x00000000008AC000-memory.dmp

Filesize
112KB

Download
memory/2852-14-0x0000000000270000-0x0000000000358000-memory.dmp

Filesize
928KB

Download

Analysis

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