masslogger | 8487b2055d2689999be3ef815192fd8bbc9d666b64f80753aa22ccedb2cdf604

General

Target

Halkbank.exe
Size

871KB
MD5

8d4fb7606e6270b7190b97f382993b42
SHA1

c4f94218183dd65573fc143e2051b776c3c0e13d
SHA256

01053beaa477c1cbf38cd7914244da9e75a22f59568056048fefde017503226e
SHA512

01e9bbe174bb282a263b0f85d478e884186f2c8aa67f3a82af2bc1c27005817d40f43d64797cf96a30c6bba7766d8a0dffd1d2851f871abc1779ff1399cd7538
SSDEEP

12288:qnTq/B++r60H1qRrznXOdDU9k3CDOSeJot8EUpWLfM88vqXVjPM6boym+gm2xOKY:RBRrFVWrzsUAaOSeJoPxsyFrMWBm/D1

Score

10^/10

masslogger collection execution spyware stealer

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2760-12-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/2760-20-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/2760-23-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/2760-18-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/2760-14-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger

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

Processes:

powershell.exe

pid process

2908 powershell.exe

pid	process
2908	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Halkbank.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Control Panel\International\Geo\Nation	Halkbank.exe

Reads user/profile data of web browsers 2 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

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

Processes:

Halkbank.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Halkbank.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Halkbank.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Halkbank.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Halkbank.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Halkbank.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.

Processes:

flow ioc

4 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank.exe

description pid process target process

PID 2196 set thread context of 2760 2196 Halkbank.exe Halkbank.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Halkbank.exe

pid process

2760 Halkbank.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

Halkbank.exeHalkbank.exepowershell.exe

pid process

2196 Halkbank.exe
2196 Halkbank.exe
2760 Halkbank.exe
2760 Halkbank.exe
2760 Halkbank.exe
2760 Halkbank.exe
2908 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Halkbank.exeHalkbank.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2196 Halkbank.exe
Token: SeDebugPrivilege 2760 Halkbank.exe
Token: SeDebugPrivilege 2908 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Halkbank.exe

pid process

2760 Halkbank.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 2196 set thread context of 2760	2196	Halkbank.exe	Halkbank.exe

pid	process
2760	Halkbank.exe

pid	process
2196	Halkbank.exe
2196	Halkbank.exe
2760	Halkbank.exe
2760	Halkbank.exe
2760	Halkbank.exe
2760	Halkbank.exe
2908	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2196	Halkbank.exe
Token: SeDebugPrivilege	2760	Halkbank.exe
Token: SeDebugPrivilege	2908	powershell.exe

pid	process
2760	Halkbank.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Halkbank.exeHalkbank.exe

description	pid	process	target process
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	Halkbank.exe
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	powershell.exe
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	powershell.exe
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	powershell.exe
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	powershell.exe

outlook_office_path 1 IoCs

Processes:

Halkbank.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe

outlook_win_path 1 IoCs

Processes:

Halkbank.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196

C:\Users\Admin\AppData\Local\Temp\Halkbank.exe
"{path}"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2760

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Halkbank.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2908

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2196-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/2196-1-0x0000000000BB0000-0x0000000000C90000-memory.dmp

Filesize
896KB

Download
memory/2196-2-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2196-3-0x0000000000640000-0x0000000000652000-memory.dmp

Filesize
72KB

Download
memory/2196-4-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/2196-5-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2196-6-0x00000000080A0000-0x000000000813C000-memory.dmp

Filesize
624KB

Download
memory/2196-7-0x0000000008140000-0x00000000081DA000-memory.dmp

Filesize
616KB

Download
memory/2196-25-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-20-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2760-12-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2760-23-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2760-18-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2760-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-14-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2760-10-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2760-24-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-9-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2760-26-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-27-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-30-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads