masslogger | 8487b2055d2689999be3ef815192fd8bbc9d666b64f80753aa22ccedb2cdf604

Analysis

max time kernel
117s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-06-2024 13:18

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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

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

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

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

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.

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 2760	2196	Halkbank.exe	28

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2760	Halkbank.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

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

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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2760	Halkbank.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2196 wrote to memory of 2760	2196	Halkbank.exe	28
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	32
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	32
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	32
PID 2760 wrote to memory of 2908	2760	Halkbank.exe	32

outlook_office_path 1 IoCs

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

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 Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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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