vipkeylogger | 8bc4c184f461f92d95fd52ca1e1224fb3f3a905b3f8516211f47903a61cea271

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 14:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

K1_Chit_Form.scr.exe
Size

646KB
MD5

8ae914653340ef79bbf6c39eaf259e16
SHA1

7b74c24e74bdb4837ebf448362dd2d261843e833
SHA256

8bc4c184f461f92d95fd52ca1e1224fb3f3a905b3f8516211f47903a61cea271
SHA512

e6e91013a45ea11451634c0fd5215a72be9a17c7e0cc3984c7b5a1120fee57cb5796d7884ba11ede95f068960646dc73cd6df44053cd41293d51a09e137b01fb
SSDEEP

12288:pjBR3Lxt5wW1oLiLud/6w3ZJPAJBom1M8E16YdL7Dd3i6:pdvT96Pd/ex1Mt16YdLl3z

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
4312	K1_Chit_Form.scr.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	K1_Chit_Form.scr.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	K1_Chit_Form.scr.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	K1_Chit_Form.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
8	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1660 set thread context of 4312	1660	K1_Chit_Form.scr.exe	84

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
916	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	K1_Chit_Form.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	K1_Chit_Form.scr.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
916	Powershell.exe
4312	K1_Chit_Form.scr.exe
916	Powershell.exe
4312	K1_Chit_Form.scr.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	916	Powershell.exe
Token: SeDebugPrivilege	4312	K1_Chit_Form.scr.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 916	1660	K1_Chit_Form.scr.exe	82
PID 1660 wrote to memory of 916	1660	K1_Chit_Form.scr.exe	82
PID 1660 wrote to memory of 916	1660	K1_Chit_Form.scr.exe	82
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84
PID 1660 wrote to memory of 4312	1660	K1_Chit_Form.scr.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	K1_Chit_Form.scr.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	K1_Chit_Form.scr.exe

C:\Users\Admin\AppData\Local\Temp\K1_Chit_Form.scr.exe
"C:\Users\Admin\AppData\Local\Temp\K1_Chit_Form.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\K1_Chit_Form.scr.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:916
- C:\Users\Admin\AppData\Local\Temp\K1_Chit_Form.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\K1_Chit_Form.scr.exe"
  2⤵
  - 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:4312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\K1_Chit_Form.scr.exe

Filesize
646KB

MD5
8ae914653340ef79bbf6c39eaf259e16

SHA1
7b74c24e74bdb4837ebf448362dd2d261843e833

SHA256
8bc4c184f461f92d95fd52ca1e1224fb3f3a905b3f8516211f47903a61cea271

SHA512
e6e91013a45ea11451634c0fd5215a72be9a17c7e0cc3984c7b5a1120fee57cb5796d7884ba11ede95f068960646dc73cd6df44053cd41293d51a09e137b01fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kcgxhi1i.1op.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/916-11-0x00000000056E0000-0x0000000005D08000-memory.dmp

Filesize
6.2MB

Download
memory/916-9-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/916-46-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/916-42-0x0000000006930000-0x0000000006952000-memory.dmp

Filesize
136KB

Download
memory/916-41-0x00000000068E0000-0x00000000068FA000-memory.dmp

Filesize
104KB

Download
memory/916-40-0x0000000006970000-0x0000000006A06000-memory.dmp

Filesize
600KB

Download
memory/916-8-0x0000000002AD0000-0x0000000002B06000-memory.dmp

Filesize
216KB

Download
memory/916-39-0x0000000006490000-0x00000000064DC000-memory.dmp

Filesize
304KB

Download
memory/916-10-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/916-38-0x0000000006400000-0x000000000641E000-memory.dmp

Filesize
120KB

Download
memory/916-12-0x0000000005320000-0x0000000005342000-memory.dmp

Filesize
136KB

Download
memory/916-13-0x00000000054D0000-0x0000000005536000-memory.dmp

Filesize
408KB

Download
memory/916-14-0x00000000055B0000-0x0000000005616000-memory.dmp

Filesize
408KB

Download
memory/916-26-0x0000000005E10000-0x0000000006164000-memory.dmp

Filesize
3.3MB

Download
memory/1660-48-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/1660-5-0x0000000005450000-0x000000000545A000-memory.dmp

Filesize
40KB

Download
memory/1660-20-0x0000000005720000-0x0000000005728000-memory.dmp

Filesize
32KB

Download
memory/1660-0-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/1660-2-0x0000000005B70000-0x0000000006114000-memory.dmp

Filesize
5.6MB

Download
memory/1660-47-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/1660-1-0x0000000000B20000-0x0000000000BC8000-memory.dmp

Filesize
672KB

Download
memory/1660-3-0x0000000005480000-0x0000000005512000-memory.dmp

Filesize
584KB

Download
memory/1660-4-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/1660-6-0x00000000056B0000-0x0000000005718000-memory.dmp

Filesize
416KB

Download
memory/1660-7-0x00000000057C0000-0x000000000585C000-memory.dmp

Filesize
624KB

Download
memory/4312-52-0x0000000006B90000-0x0000000006D52000-memory.dmp

Filesize
1.8MB

Download
memory/4312-23-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4312-37-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/4312-34-0x0000000003050000-0x000000000309E000-memory.dmp

Filesize
312KB

Download
memory/4312-35-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/4312-32-0x0000000002DC0000-0x0000000002E10000-memory.dmp

Filesize
320KB

Download
memory/4312-33-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/4312-25-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4312-31-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/4312-54-0x0000000007290000-0x00000000077BC000-memory.dmp

Filesize
5.2MB

Download
memory/4312-24-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4312-49-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4312-50-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/4312-51-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/4312-21-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4312-53-0x0000000006A30000-0x0000000006A80000-memory.dmp

Filesize
320KB

Download
memory/4312-36-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download