vipkeylogger | 491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee

General

Target

491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
Size

547KB
MD5

9f036462b07002efdf646b0995217bbd
SHA1

fbfd528f12735ecfa48f4d0fde42aef883e1c678
SHA256

491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee
SHA512

860bb827f413215224c55c82f4760e99dd17fada85f7da1b568dc93736cc5dd17db1825acb1e18aad9b0e3c4e58649ef2a1f8227de25487970d06f2a2a21517c
SSDEEP

12288:32EINTjsFYs9KzQ1HCgL/g4BC5fxjlzyZmd3ZhZv:3w5sxszMHLIvtyZmdPZv

Score

10^/10

vipkeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7396856636:AAFzZvZlhz352HQorBY7sPxLQBc4vVQnrB8/sendMessage?chat_id=6553726543

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

Loads dropped DLL 1 IoCs

pid	Process
3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.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
26	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2068	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
2068	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3756 set thread context of 2068	3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe	95

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\slnger\barometerstandenes.san	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.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 2 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	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2068	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
2068	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2068	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3756 wrote to memory of 2068	3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe	95
PID 3756 wrote to memory of 2068	3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe	95
PID 3756 wrote to memory of 2068	3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe	95
PID 3756 wrote to memory of 2068	3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe	95
PID 3756 wrote to memory of 2068	3756	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe

C:\Users\Admin\AppData\Local\Temp\491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
"C:\Users\Admin\AppData\Local\Temp\491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3756
- C:\Users\Admin\AppData\Local\Temp\491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe
  "C:\Users\Admin\AppData\Local\Temp\491cf03511ae77ed758d9b36f3237da0ef099370144ed61367146fee1c2bacee.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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\Local\Temp\nsu9FBB.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/2068-23-0x0000000039F90000-0x000000003A534000-memory.dmp

Filesize
5.6MB

Download
memory/2068-35-0x0000000037A20000-0x0000000037A2A000-memory.dmp

Filesize
40KB

Download
memory/2068-22-0x00000000007E0000-0x000000000082A000-memory.dmp

Filesize
296KB

Download
memory/2068-11-0x0000000076FF8000-0x0000000076FF9000-memory.dmp

Filesize
4KB

Download
memory/2068-12-0x0000000077015000-0x0000000077016000-memory.dmp

Filesize
4KB

Download
memory/2068-20-0x0000000076F71000-0x0000000077091000-memory.dmp

Filesize
1.1MB

Download
memory/2068-19-0x00000000007E0000-0x0000000001A34000-memory.dmp

Filesize
18.3MB

Download
memory/2068-21-0x0000000071E6E000-0x0000000071E6F000-memory.dmp

Filesize
4KB

Download
memory/2068-34-0x0000000037960000-0x00000000379F2000-memory.dmp

Filesize
584KB

Download
memory/2068-31-0x000000003ADC0000-0x000000003B2EC000-memory.dmp

Filesize
5.2MB

Download
memory/2068-25-0x0000000071E60000-0x0000000072610000-memory.dmp

Filesize
7.7MB

Download
memory/2068-24-0x000000003A540000-0x000000003A5DC000-memory.dmp

Filesize
624KB

Download
memory/2068-27-0x0000000071E6E000-0x0000000071E6F000-memory.dmp

Filesize
4KB

Download
memory/2068-28-0x000000003AB00000-0x000000003ACC2000-memory.dmp

Filesize
1.8MB

Download
memory/2068-29-0x000000003ACE0000-0x000000003AD30000-memory.dmp

Filesize
320KB

Download
memory/2068-30-0x0000000071E60000-0x0000000072610000-memory.dmp

Filesize
7.7MB

Download
memory/3756-9-0x0000000076F71000-0x0000000077091000-memory.dmp

Filesize
1.1MB

Download
memory/3756-10-0x0000000073C64000-0x0000000073C65000-memory.dmp

Filesize
4KB

Download
memory/3756-8-0x0000000076F71000-0x0000000077091000-memory.dmp

Filesize
1.1MB

Download

Analysis

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