masslogger | 5d9b42ceeb907502e05847f173c3ecad536035ec1f01febd3b5471f7019bda9b

Analysis

max time kernel
145s
max time network
133s
platform
windows7_x64
resource
win7-20220414-en
submitted
02-05-2022 15:27

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General

Target

usd100374=usd37400.exe
Size

1008KB
MD5

b5daea22056dbf2a79b2249c70c5e441
SHA1

70b02bad0015f9f1ef40414577dd2e9413c5d336
SHA256

fce44d4ea50194f48988cd604e3bd7fa580f9d55ebc1c8c1da791c0737133a9f
SHA512

29c1035904f8ff6d3d38bcd1d794dfc758abac98ee327183214c6503189798ed63e7833e8946ea39f2b6af1b8880ad2552a847aed4b00abbc91b6fcd06c42ba8

Score

10^/10

masslogger collection 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 6 IoCs

resource	yara_rule
behavioral1/memory/1900-62-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1900-63-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1900-64-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1900-65-0x0000000000481F0E-mapping.dmp	family_masslogger
behavioral1/memory/1900-67-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1900-69-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger

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-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	usd100374=usd37400.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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	usd100374=usd37400.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 1900	2040	usd100374=usd37400.exe	27

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1900	usd100374=usd37400.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2040	usd100374=usd37400.exe
2040	usd100374=usd37400.exe
1900	usd100374=usd37400.exe
1900	usd100374=usd37400.exe
1900	usd100374=usd37400.exe
1900	usd100374=usd37400.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	usd100374=usd37400.exe
Token: SeDebugPrivilege	1900	usd100374=usd37400.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1900	usd100374=usd37400.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27
PID 2040 wrote to memory of 1900	2040	usd100374=usd37400.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	usd100374=usd37400.exe

C:\Users\Admin\AppData\Local\Temp\usd100374=usd37400.exe
"C:\Users\Admin\AppData\Local\Temp\usd100374=usd37400.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\usd100374=usd37400.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
  - outlook_office_path
  - outlook_win_path
  PID:1900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

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/1900-64-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1900-63-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1900-71-0x0000000004F95000-0x0000000004FA6000-memory.dmp

Filesize
68KB

Download
memory/1900-69-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1900-67-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1900-59-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1900-62-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1900-60-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2040-54-0x0000000000920000-0x0000000000A22000-memory.dmp

Filesize
1.0MB

Download
memory/2040-55-0x0000000075F61000-0x0000000075F63000-memory.dmp

Filesize
8KB

Download
memory/2040-58-0x0000000005F90000-0x0000000006054000-memory.dmp

Filesize
784KB

Download
memory/2040-57-0x0000000005A50000-0x0000000005B18000-memory.dmp

Filesize
800KB

Download
memory/2040-56-0x00000000003A0000-0x00000000003AA000-memory.dmp

Filesize
40KB

Download