masslogger | c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350

General

Target

c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Size

836KB
MD5

a7a16b9f2a085712270d6c70fdd7369c
SHA1

b457a1a795fde8d5d2cccb00785e442a7c45d5df
SHA256

c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350
SHA512

97398041b895d7872836f699431bb24aa4ccc2588b066ac181042f09b54e720ffe8aadf0796a7e3872dfb38ec2f90dfde4ab0b01b831b4f754829c46cf69b434

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 11:31:53 PM MassLogger Started: 5/24/2022 11:31:34 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

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

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.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 opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.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 1120 set thread context of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
620	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1204	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1204	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
1204	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1204	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1204	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 620	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	29
PID 1120 wrote to memory of 620	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	29
PID 1120 wrote to memory of 620	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	29
PID 1120 wrote to memory of 620	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	29
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30
PID 1120 wrote to memory of 1204	1120	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe	30

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	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.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	c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe

C:\Users\Admin\AppData\Local\Temp\c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe
"C:\Users\Admin\AppData\Local\Temp\c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aPquciWBT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp951F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:620
- C:\Users\Admin\AppData\Local\Temp\c2a5008bd1783ae0b21571ed3558a118ff206c64ca7fdb84f8f9127e32eb6350.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:1204

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1120-54-0x0000000000270000-0x0000000000348000-memory.dmp

Filesize
864KB

Download
memory/1120-55-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1120-56-0x00000000004B0000-0x00000000004B8000-memory.dmp

Filesize
32KB

Download
memory/1120-57-0x0000000007DE0000-0x0000000007E8E000-memory.dmp

Filesize
696KB

Download
memory/1204-70-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1204-68-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1204-61-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1204-71-0x00000000005E0000-0x0000000000624000-memory.dmp

Filesize
272KB

Download
memory/1204-65-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1204-64-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1204-63-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1204-60-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1204-73-0x0000000004F65000-0x0000000004F76000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads