masslogger | 7c41514345f32542fb4e14e372bc1eacd408895e52340680758fb1b1cbaf0ad1

Analysis

max time kernel
91s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20/04/2022, 09:00

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General

Target
Sample Inquiry Ref.exe
Size 1.1MB
Sample220420-kyn4fsaebj
SHA256 1c6f13d8f71f1a05425087658e39ea7460122b3bcbe94690d70003d76f7a120a
MD5 ea1885af97a055e92ac4ea6406df7a9b
SHA1 443820d9e8783200bc85329496c071ea39a7a849
SHA512 4e382682abee73ec37a857535b4fdca0e3bdba2c00aa954a5697913b456219765986be4b30dcc259fae864f16c86f3b76d01453ff70ea639dff9cb1a1aeb2cce
MD5 SHA1 SHA512

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 1 IoCs

resource	yara_rule
behavioral2/memory/1420-137-0x0000000000400000-0x0000000000486000-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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	Sample Inquiry Ref.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 42 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Sample Inquiry Ref.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.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
21	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 876 set thread context of 1420	876	Sample Inquiry Ref.exe	86

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1420	Sample Inquiry Ref.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1420	Sample Inquiry Ref.exe
1420	Sample Inquiry Ref.exe
1420	Sample Inquiry Ref.exe
1420	Sample Inquiry Ref.exe
204	powershell.exe
204	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1420	Sample Inquiry Ref.exe
Token: SeDebugPrivilege	204	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1420	Sample Inquiry Ref.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 876 wrote to memory of 1420	876	Sample Inquiry Ref.exe	86
PID 1420 wrote to memory of 204	1420	Sample Inquiry Ref.exe	87
PID 1420 wrote to memory of 204	1420	Sample Inquiry Ref.exe	87
PID 1420 wrote to memory of 204	1420	Sample Inquiry Ref.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample Inquiry Ref.exe

C:\Users\Admin\AppData\Local\Temp\Sample Inquiry Ref.exe
"C:\Users\Admin\AppData\Local\Temp\Sample Inquiry Ref.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:876
- C:\Users\Admin\AppData\Local\Temp\Sample Inquiry Ref.exe
  "C:\Users\Admin\AppData\Local\Temp\Sample Inquiry Ref.exe"
  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:1420
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Sample Inquiry Ref.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:204

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

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Downloads

Sample Inquiry Ref.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Sample Inquiry Ref.exe.log
Size 1KB
SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
MD5 84e77a587d94307c0ac1357eb4d3d46f
SHA1 83cc900f9401f43d181207d64c5adba7a85edc1e
SHA512 aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
MD5 SHA1 SHA512

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memory/204-149-0x0000000006010000-0x000000000602E000-memory.dmp

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memory/204-151-0x0000000006D80000-0x0000000006D9A000-memory.dmp

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memory/204-156-0x00000000070A0000-0x00000000070A8000-memory.dmp

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memory/204-155-0x00000000070C0000-0x00000000070DA000-memory.dmp

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memory/204-154-0x0000000006FB0000-0x0000000006FBE000-memory.dmp

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memory/204-145-0x0000000004BD0000-0x0000000004C36000-memory.dmp

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memory/204-152-0x0000000006DF0000-0x0000000006DFA000-memory.dmp

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memory/204-146-0x0000000005A80000-0x0000000005A9E000-memory.dmp

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memory/204-150-0x00000000073C0000-0x0000000007A3A000-memory.dmp

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memory/204-142-0x00000000020C0000-0x00000000020F6000-memory.dmp

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memory/204-143-0x0000000004DA0000-0x00000000053C8000-memory.dmp

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memory/204-148-0x000000006F8F0000-0x000000006F93C000-memory.dmp

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memory/204-153-0x0000000007000000-0x0000000007096000-memory.dmp

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memory/204-144-0x0000000004B30000-0x0000000004B52000-memory.dmp

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memory/204-147-0x0000000006030000-0x0000000006062000-memory.dmp

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memory/876-133-0x0000000007120000-0x00000000071B2000-memory.dmp

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memory/876-131-0x00000000000B0000-0x00000000001CE000-memory.dmp

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memory/876-132-0x0000000007630000-0x0000000007BD4000-memory.dmp

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memory/876-135-0x0000000007110000-0x000000000711A000-memory.dmp

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memory/876-134-0x0000000007260000-0x00000000072FC000-memory.dmp

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memory/1420-141-0x0000000006DD0000-0x0000000006E20000-memory.dmp

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memory/1420-139-0x0000000006440000-0x00000000064A6000-memory.dmp

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memory/1420-137-0x0000000000400000-0x0000000000486000-memory.dmp

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