masslogger | 8d0d6ef5d40f5086af207d94212c1f8cc737f34eab3b84b8f14ff5a4a50b831b

General

Target

scan copy.exe
Size

859KB
MD5

54a3dd33e8b12aed84551a0fecaa4068
SHA1

637e1d8791e758bcce7a77c18c3c2019105e70e1
SHA256

fa1dd731e06f5a7470f45a3f09f0b39d2e236d022c9a9d6e52828e8214c5893e
SHA512

ed3a361816805a4894eee14de6d9a32d4bc55e1ca8daac9fbb358f6881acbf590bb23b3cfeb8ef16625440bd13e69bad34d8de51a5599f407b94249752268418

Score

10^/10

masslogger collection evasion ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

<|| v2.4.0.0 ||> 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: 5/21/2022 12:31:22 AM MassLogger Started: 5/21/2022 12:31:15 AM Interval: 1 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\scan copy.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Window Searcher ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

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.

Processes:

yara_rule

masslogger_log_file
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

yara_rule
masslogger_log_file

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

scan copy.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	scan copy.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	scan copy.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

Processes:

scan copy.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	scan copy.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

Processes:

scan copy.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	scan copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	scan copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	scan copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	scan copy.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.

Processes:

flow ioc

4 api.ipify.org

flow	ioc
4	api.ipify.org

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

scan copy.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	scan copy.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	scan copy.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

scan copy.exe

description pid process target process

PID 1228 set thread context of 1928 1228 scan copy.exe scan copy.exe
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

Processes:

schtasks.exe

pid process

672 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

scan copy.exe

pid process

1928 scan copy.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

scan copy.exescan copy.exe

pid process

1228 scan copy.exe
1228 scan copy.exe
1928 scan copy.exe
1928 scan copy.exe
1928 scan copy.exe
1928 scan copy.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

scan copy.exescan copy.exe

description pid process

Token: SeDebugPrivilege 1228 scan copy.exe
Token: SeDebugPrivilege 1928 scan copy.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

scan copy.exe

pid process

1928 scan copy.exe

description	pid	process	target process
PID 1228 set thread context of 1928	1228	scan copy.exe	scan copy.exe

pid	process
672	schtasks.exe

pid	process
1928	scan copy.exe

pid	process
1228	scan copy.exe
1228	scan copy.exe
1928	scan copy.exe
1928	scan copy.exe
1928	scan copy.exe
1928	scan copy.exe

description	pid	process
Token: SeDebugPrivilege	1228	scan copy.exe
Token: SeDebugPrivilege	1928	scan copy.exe

pid	process
1928	scan copy.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

scan copy.exe

description	pid	process	target process
PID 1228 wrote to memory of 672	1228	scan copy.exe	schtasks.exe
PID 1228 wrote to memory of 672	1228	scan copy.exe	schtasks.exe
PID 1228 wrote to memory of 672	1228	scan copy.exe	schtasks.exe
PID 1228 wrote to memory of 672	1228	scan copy.exe	schtasks.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe
PID 1228 wrote to memory of 1928	1228	scan copy.exe	scan copy.exe

outlook_office_path 1 IoCs

Processes:

scan copy.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan copy.exe

outlook_win_path 1 IoCs

Processes:

scan copy.exe

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	scan copy.exe

C:\Users\Admin\AppData\Local\Temp\scan copy.exe
"C:\Users\Admin\AppData\Local\Temp\scan copy.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UpyZsPxZaoR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBFA8.tmp"
2⤵
- Creates scheduled task(s)
PID:672

C:\Users\Admin\AppData\Local\Temp\scan copy.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:1928

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBFA8.tmp

Filesize
1KB

MD5
72dc5418e6043dcc2ca5fe83db96c72f

SHA1
99265b1bc08bc6dfc11d31224ba7c32f7aa81fc5

SHA256
63d9bd0d08937903f9ea49fd07219c9f010f190ec5f5080a929f62624a28af39

SHA512
f1d40e1a0ac8532eb469886117053eae8256229805e2f21ee358e4ab163d716a962e348549b4bc9e6e17ab7121c69ff0ea6722d17b9aec793a28fb9fcd425559

Download Submit
memory/672-59-0x0000000000000000-mapping.dmp

Download
memory/1228-54-0x00000000011B0000-0x000000000128E000-memory.dmp

Filesize
888KB

Download
memory/1228-55-0x00000000751C1000-0x00000000751C3000-memory.dmp

Filesize
8KB

Download
memory/1228-56-0x0000000000320000-0x000000000032A000-memory.dmp

Filesize
40KB

Download
memory/1228-57-0x00000000076B0000-0x0000000007768000-memory.dmp

Filesize
736KB

Download
memory/1228-58-0x0000000007CC0000-0x0000000007D78000-memory.dmp

Filesize
736KB

Download
memory/1928-62-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1928-61-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1928-65-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1928-66-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1928-67-0x00000000004B31EE-mapping.dmp

Download
memory/1928-64-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1928-69-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1928-71-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1928-72-0x0000000000BF0000-0x0000000000C68000-memory.dmp

Filesize
480KB

Download
memory/1928-74-0x0000000004D45000-0x0000000004D56000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads