masslogger | fa1dd731e06f5a7470f45a3f09f0b39d2e236d022c9a9d6e52828e8214c5893e

General

Target

scan copy.exe
Size

859KB
MD5

54a3dd33e8b12aed84551a0fecaa4068
SHA1

637e1d8791e758bcce7a77c18c3c2019105e70e1
SHA256

fa1dd731e06f5a7470f45a3f09f0b39d2e236d022c9a9d6e52828e8214c5893e
SHA512

ed3a361816805a4894eee14de6d9a32d4bc55e1ca8daac9fbb358f6881acbf590bb23b3cfeb8ef16625440bd13e69bad34d8de51a5599f407b94249752268418

Score

10^/10

ransomware spyware stealer masslogger evasion

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\42EF15E83D\Log.txt

Family

masslogger

Ransom Note

<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 8/17/2020 7:36:17 PM MassLogger Started: 8/17/2020 7:36:12 PM 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 <|| Downloader ||> Disabled <|| Window Searcher ||> 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

Extracted

Credentials

Protocol: smtp
Host:
mail.nartaccess.com
Port:
587
Username:
info@nartaccess.com
Password:
T4R3PxJ68GnJ

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

Data from Local System
T1005

Credentials in Files
T1081
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

5 api.ipify.org

flow	ioc
5	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 844 set thread context of 568 844 scan copy.exe scan copy.exe
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

760 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

scan copy.exe

pid process

568 scan copy.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

scan copy.exescan copy.exe

pid process

844 scan copy.exe
844 scan copy.exe
568 scan copy.exe
568 scan copy.exe
568 scan copy.exe
568 scan copy.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

scan copy.exescan copy.exe

description pid process

Token: SeDebugPrivilege 844 scan copy.exe
Token: SeDebugPrivilege 568 scan copy.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

scan copy.exe

pid process

568 scan copy.exe

description	pid	process	target process
PID 844 set thread context of 568	844	scan copy.exe	scan copy.exe

pid	process
760	schtasks.exe

pid	process
568	scan copy.exe

pid	process
844	scan copy.exe
844	scan copy.exe
568	scan copy.exe
568	scan copy.exe
568	scan copy.exe
568	scan copy.exe

description	pid	process
Token: SeDebugPrivilege	844	scan copy.exe
Token: SeDebugPrivilege	568	scan copy.exe

pid	process
568	scan copy.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

scan copy.exe

description	pid	process	target process
PID 844 wrote to memory of 760	844	scan copy.exe	schtasks.exe
PID 844 wrote to memory of 760	844	scan copy.exe	schtasks.exe
PID 844 wrote to memory of 760	844	scan copy.exe	schtasks.exe
PID 844 wrote to memory of 760	844	scan copy.exe	schtasks.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	scan copy.exe
PID 844 wrote to memory of 568	844	scan copy.exe	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:844

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UpyZsPxZaoR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp70EB.tmp"
2⤵
- Creates scheduled task(s)
PID:760

C:\Users\Admin\AppData\Local\Temp\scan copy.exe
"{path}"
2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:568

Network

MITRE ATT&CK Matrix ATT&CK 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

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp70EB.tmp

Download Submit
memory/568-10-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/568-8-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/568-9-0x00000000004B31EE-mapping.dmp

Download
memory/568-11-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/568-12-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/568-15-0x00000000041C0000-0x0000000004231000-memory.dmp

Filesize
452KB

Download
memory/760-6-0x0000000000000000-mapping.dmp

Download
memory/844-3-0x0000000000230000-0x0000000000234000-memory.dmp

Filesize
16KB

Download
memory/844-4-0x00000000008E0000-0x000000000098F000-memory.dmp

Filesize
700KB

Download
memory/844-5-0x000000000AF40000-0x000000000AFF3000-memory.dmp

Filesize
716KB

Download
memory/844-1-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/844-0-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads