vipkeylogger | 70a49e9b98d9637acc87a3e6db88c73fe8d425eb25ff221e592bd600c24d76f2

General

Target

Halkbank_Extract_20241128_164557_1988850.exe
Size

881KB
MD5

3cc533df6ae503977ca90c53c1db0f9f
SHA1

63c953be5bb951d94990d7bd257f10e333d242f5
SHA256

74e2055e94f2fdb9641eae485f63be8a96190edbca72024a0bb834322418647b
SHA512

f6bd98d850290aeb0577fbebfb6c79a78e7294943c164b415fe334eb6802ea9def76763c6cf86721e9d067e524afa8d50892def2b9973d98b40372031ed9422f
SSDEEP

12288:u2sv+SGjpA3yKUUo6a/LnLrDIFfnObzNJcHk9SdYyFQTtWrx9jyGJgCTMogQlOio:u2xj1nDIFgb9SdbQTyuNHXQlqLCnYnJ

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

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
2724	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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Extract_20241128_164557_1988850.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Extract_20241128_164557_1988850.exe
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Extract_20241128_164557_1988850.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1700 set thread context of 2900	1700	Halkbank_Extract_20241128_164557_1988850.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	Halkbank_Extract_20241128_164557_1988850.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Halkbank_Extract_20241128_164557_1988850.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1700	Halkbank_Extract_20241128_164557_1988850.exe
1700	Halkbank_Extract_20241128_164557_1988850.exe
1700	Halkbank_Extract_20241128_164557_1988850.exe
1700	Halkbank_Extract_20241128_164557_1988850.exe
1700	Halkbank_Extract_20241128_164557_1988850.exe
1700	Halkbank_Extract_20241128_164557_1988850.exe
2900	Halkbank_Extract_20241128_164557_1988850.exe
2724	powershell.exe
2900	Halkbank_Extract_20241128_164557_1988850.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	Halkbank_Extract_20241128_164557_1988850.exe
Token: SeDebugPrivilege	2900	Halkbank_Extract_20241128_164557_1988850.exe
Token: SeDebugPrivilege	2724	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2900	Halkbank_Extract_20241128_164557_1988850.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2724	1700	Halkbank_Extract_20241128_164557_1988850.exe	28
PID 1700 wrote to memory of 2724	1700	Halkbank_Extract_20241128_164557_1988850.exe	28
PID 1700 wrote to memory of 2724	1700	Halkbank_Extract_20241128_164557_1988850.exe	28
PID 1700 wrote to memory of 2724	1700	Halkbank_Extract_20241128_164557_1988850.exe	28
PID 1700 wrote to memory of 2704	1700	Halkbank_Extract_20241128_164557_1988850.exe	30
PID 1700 wrote to memory of 2704	1700	Halkbank_Extract_20241128_164557_1988850.exe	30
PID 1700 wrote to memory of 2704	1700	Halkbank_Extract_20241128_164557_1988850.exe	30
PID 1700 wrote to memory of 2704	1700	Halkbank_Extract_20241128_164557_1988850.exe	30
PID 1700 wrote to memory of 2428	1700	Halkbank_Extract_20241128_164557_1988850.exe	31
PID 1700 wrote to memory of 2428	1700	Halkbank_Extract_20241128_164557_1988850.exe	31
PID 1700 wrote to memory of 2428	1700	Halkbank_Extract_20241128_164557_1988850.exe	31
PID 1700 wrote to memory of 2428	1700	Halkbank_Extract_20241128_164557_1988850.exe	31
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32
PID 1700 wrote to memory of 2900	1700	Halkbank_Extract_20241128_164557_1988850.exe	32

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	Halkbank_Extract_20241128_164557_1988850.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	Halkbank_Extract_20241128_164557_1988850.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700
- 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\Halkbank_Extract_20241128_164557_1988850.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2724
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe"
  2⤵
  PID:2704
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe"
  2⤵
  PID:2428
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2900

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/1700-0-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/1700-1-0x0000000000240000-0x0000000000322000-memory.dmp

Filesize
904KB

Download
memory/1700-2-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/1700-3-0x00000000004D0000-0x00000000004E8000-memory.dmp

Filesize
96KB

Download
memory/1700-4-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/1700-5-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/1700-6-0x0000000004D00000-0x0000000004D8E000-memory.dmp

Filesize
568KB

Download
memory/1700-25-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/2900-17-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-21-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-19-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-13-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-22-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/2900-9-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-7-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-26-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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