masslogger | 11b51777fe2510a6c9c60058157e5d81a4d70a0c5f91a5360c97cc85a66c9b22

Analysis

max time kernel
107s
max time network
126s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 12:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

IMG.exe
Size

790KB
MD5

e37eaf4e6ba3f8f3c7ae69fe64fab426
SHA1

2371f3f0b6f993a6a85016764fc515e21318acd6
SHA256

686fa9c6fbea4f0c7ef43e699dc0635cde676b7e9b85846543367a0530c36b0d
SHA512

eb833ba22f65f3dbceaafa87ab0e3f329cd710849dc08e8dd6972e2a291cb7ddceb90daabfa613e6310e18879e762ffaf051a8c10e36fd264b8f58eecf107142

Score

10^/10

masslogger collection persistence spyware stealer suricata

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
1234567890$$

Signatures

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

MassLogger Main Payload 32 IoCs

resource	yara_rule
behavioral1/memory/1840-65-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-64-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-66-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-67-0x00000000004A187E-mapping.dmp	family_masslogger
behavioral1/memory/1840-71-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-69-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-73-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-75-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-77-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-79-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-81-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-83-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-85-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-91-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-89-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-87-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-95-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-93-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-97-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-103-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-101-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-99-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-105-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-109-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-111-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-107-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-113-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-115-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-117-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-119-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-121-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1840-123-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

suricata: ET MALWARE MASSLOGGER Client Data Exfil (POST)
suricata: ET MALWARE MASSLOGGER Client Data Exfil (POST)
suricata

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-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	IMG.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 15 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	IMG.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	IMG.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	IMG.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	IMG.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	IMG.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	IMG.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\bios = "\"C:\\Users\\Admin\\bios.exe\""	IMG.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 1348 set thread context of 1840	1348	IMG.exe	29

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1840	IMG.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1348	IMG.exe
1840	IMG.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1348	IMG.exe
Token: SeDebugPrivilege	1840	IMG.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1840	IMG.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29
PID 1348 wrote to memory of 1840	1348	IMG.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG.exe

C:\Users\Admin\AppData\Local\Temp\IMG.exe
"C:\Users\Admin\AppData\Local\Temp\IMG.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1348
- C:\Users\Admin\AppData\Local\Temp\IMG.exe
  "C:\Users\Admin\AppData\Local\Temp\IMG.exe"
  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:1840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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

Loading Replay Monitor...

Downloads

memory/1348-54-0x0000000001080000-0x000000000114C000-memory.dmp

Filesize
816KB

Download
memory/1348-55-0x00000000005A0000-0x00000000005A8000-memory.dmp

Filesize
32KB

Download
memory/1348-56-0x0000000000C80000-0x0000000000D28000-memory.dmp

Filesize
672KB

Download
memory/1348-57-0x0000000000790000-0x00000000007A6000-memory.dmp

Filesize
88KB

Download
memory/1348-58-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download
memory/1348-59-0x0000000000980000-0x0000000000996000-memory.dmp

Filesize
88KB

Download
memory/1348-60-0x00000000009F0000-0x0000000000A04000-memory.dmp

Filesize
80KB

Download
memory/1840-61-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-62-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-65-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-64-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-66-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-71-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-69-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-73-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-75-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-77-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-79-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-81-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-83-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-85-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-91-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-89-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-87-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-95-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-93-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-97-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-103-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-101-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-99-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-105-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-109-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-111-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-107-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-113-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-115-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-117-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-119-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-121-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-123-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1840-573-0x00000000006B0000-0x00000000006F4000-memory.dmp

Filesize
272KB

Download