vipkeylogger | a5ec9721b976b5b2b9b212d0dd05313a95460c0cf685d9156e51962bcab76164

General

Target

SignedInvoice.exe
Size

766KB
MD5

35a8b284b170cd75cd1d7db7fabd7dfd
SHA1

fb016ba3030e9aff80022c08a9674ba99a1efffd
SHA256

a5ec9721b976b5b2b9b212d0dd05313a95460c0cf685d9156e51962bcab76164
SHA512

f82f59923c5e9af9d3c6f165d866b840be2daa7fd17c93f569de67d3f46af4a66ea55ef4bbc3c411a78be84d728c1d87c302769bf95eb081372ecd91aa32d246
SSDEEP

12288:mMr8IX5dYeXY/e1crO8ZvULHKtSj0LkUATqs3vK7rgaDFXjMAH4s786Ztt5nvwhX:mMrbpR6JGLwSjckZTqyvKAaDF/HH7FX8

Score

10^/10

vipkeylogger collection discovery execution keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.jhxkgroup.online
Port:
587
Username:
[email protected]
Password:
7213575aceACE@@
Email To:
[email protected]

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
2784	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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SignedInvoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SignedInvoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SignedInvoice.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 2236 set thread context of 2736	2236	SignedInvoice.exe	32

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	SignedInvoice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SignedInvoice.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2236	SignedInvoice.exe
2236	SignedInvoice.exe
2736	SignedInvoice.exe
2784	powershell.exe
2736	SignedInvoice.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2236	SignedInvoice.exe
Token: SeDebugPrivilege	2736	SignedInvoice.exe
Token: SeDebugPrivilege	2784	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2236	SignedInvoice.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2236	SignedInvoice.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2784	2236	SignedInvoice.exe	30
PID 2236 wrote to memory of 2784	2236	SignedInvoice.exe	30
PID 2236 wrote to memory of 2784	2236	SignedInvoice.exe	30
PID 2236 wrote to memory of 2784	2236	SignedInvoice.exe	30
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32
PID 2236 wrote to memory of 2736	2236	SignedInvoice.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SignedInvoice.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SignedInvoice.exe

C:\Users\Admin\AppData\Local\Temp\SignedInvoice.exe
"C:\Users\Admin\AppData\Local\Temp\SignedInvoice.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2236
- 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\SignedInvoice.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\SignedInvoice.exe
  "C:\Users\Admin\AppData\Local\Temp\SignedInvoice.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:2736

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/2236-0-0x000000007433E000-0x000000007433F000-memory.dmp

Filesize
4KB

Download
memory/2236-1-0x0000000001390000-0x0000000001454000-memory.dmp

Filesize
784KB

Download
memory/2236-2-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-3-0x0000000000B20000-0x0000000000B38000-memory.dmp

Filesize
96KB

Download
memory/2236-4-0x000000007433E000-0x000000007433F000-memory.dmp

Filesize
4KB

Download
memory/2236-5-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-6-0x0000000004C70000-0x0000000004CFE000-memory.dmp

Filesize
568KB

Download
memory/2236-22-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-15-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2736-21-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-12-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2736-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2736-9-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2736-7-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2736-20-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2736-17-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2736-23-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-26-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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