vipkeylogger | cd7aa2bca4b3612823b7e73160896e886a3e3ddd495c3ae7f2b47868c5dff0cf

General

Target

PDF-3093900299039 pdf.exe
Size

1019KB
MD5

1f74495f02ad58ff437b07cf58a3e0ad
SHA1

9efd59d289256116e9f539ffd7cc319603ac03ba
SHA256

cd7aa2bca4b3612823b7e73160896e886a3e3ddd495c3ae7f2b47868c5dff0cf
SHA512

14075253cc9e49a6dc9af8544f82db2bb4dfa814390739e6bc5d0d8f6ca74dbf6e989585977f968a1905f4d7c55220c11617886f6dc29a4fcece97b608feeecd
SSDEEP

24576:rMaSSKy2/SPNichdpPEcw88Cco4H4444C:rRQrc5PEcwi4H4444C

Score

10^/10

vipkeylogger collection discovery execution keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7199790900:AAH-a-1uulA8aVgkku_Nct-9FyNkWwIUg_U/sendMessage?chat_id=7437481970

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\audiomaximizer.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\audiomaximizer.exe	Powershell.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PDF-3093900299039 pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PDF-3093900299039 pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PDF-3093900299039 pdf.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 2128 set thread context of 2756	2128	PDF-3093900299039 pdf.exe	33

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2308	Powershell.exe

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	PDF-3093900299039 pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PDF-3093900299039 pdf.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2308	Powershell.exe
2756	PDF-3093900299039 pdf.exe
2756	PDF-3093900299039 pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2308	Powershell.exe
Token: SeDebugPrivilege	2756	PDF-3093900299039 pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2308	2128	PDF-3093900299039 pdf.exe	31
PID 2128 wrote to memory of 2308	2128	PDF-3093900299039 pdf.exe	31
PID 2128 wrote to memory of 2308	2128	PDF-3093900299039 pdf.exe	31
PID 2128 wrote to memory of 2308	2128	PDF-3093900299039 pdf.exe	31
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33
PID 2128 wrote to memory of 2756	2128	PDF-3093900299039 pdf.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PDF-3093900299039 pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PDF-3093900299039 pdf.exe

C:\Users\Admin\AppData\Local\Temp\PDF-3093900299039 pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PDF-3093900299039 pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\PDF-3093900299039 pdf.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\audiomaximizer.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2308
- C:\Users\Admin\AppData\Local\Temp\PDF-3093900299039 pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\PDF-3093900299039 pdf.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:2756

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 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/2128-11-0x0000000000510000-0x0000000000518000-memory.dmp

Filesize
32KB

Download
memory/2128-1-0x0000000000F30000-0x0000000001034000-memory.dmp

Filesize
1.0MB

Download
memory/2128-2-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-3-0x0000000004710000-0x000000000478A000-memory.dmp

Filesize
488KB

Download
memory/2128-0-0x000000007458E000-0x000000007458F000-memory.dmp

Filesize
4KB

Download
memory/2128-31-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-30-0x000000007458E000-0x000000007458F000-memory.dmp

Filesize
4KB

Download
memory/2308-6-0x000000006F3B1000-0x000000006F3B2000-memory.dmp

Filesize
4KB

Download
memory/2308-7-0x000000006F3B0000-0x000000006F95B000-memory.dmp

Filesize
5.7MB

Download
memory/2308-8-0x000000006F3B0000-0x000000006F95B000-memory.dmp

Filesize
5.7MB

Download
memory/2308-10-0x000000006F3B0000-0x000000006F95B000-memory.dmp

Filesize
5.7MB

Download
memory/2308-9-0x000000006F3B0000-0x000000006F95B000-memory.dmp

Filesize
5.7MB

Download
memory/2308-29-0x000000006F3B0000-0x000000006F95B000-memory.dmp

Filesize
5.7MB

Download
memory/2756-12-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2756-22-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2756-18-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2756-16-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2756-14-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2756-28-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2756-24-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2756-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

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