masslogger | 1146e4d995c67932f70852ddd73410efbf0ecfbe227fa9834ec7dfea12cb6097

General

Target

uhsBKFwa7Uzvntn.exe
Size

1.6MB
MD5

0892d8ff956c6ffddc0634cdb8c513f2
SHA1

9fa325cca370fbd86baaf5b0b3a6cbf2d3032f8a
SHA256

1146e4d995c67932f70852ddd73410efbf0ecfbe227fa9834ec7dfea12cb6097
SHA512

be353d188fe1f07229f46418bb76c82085ba23ed749a3dc66ea10bc46a64d756d4c21c37394f1c02609ed01efecf606dc23327d3b872e4faf17f579bb1bf165b

Score

10^/10

ransomware spyware stealer masslogger

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\E2C1E8F1FA\Log.txt

Family

masslogger

Ransom Note

<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.51 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: 7/17/2020 5:32:46 AM MassLogger Started: 7/17/2020 5:32:40 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\uhsBKFwa7Uzvntn.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> 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

Signatures

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1840	uhsBKFwa7Uzvntn.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1840	uhsBKFwa7Uzvntn.exe
1840	uhsBKFwa7Uzvntn.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1840	uhsBKFwa7Uzvntn.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1840	uhsBKFwa7Uzvntn.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 608 wrote to memory of 1868	608	uhsBKFwa7Uzvntn.exe	26
PID 608 wrote to memory of 1868	608	uhsBKFwa7Uzvntn.exe	26
PID 608 wrote to memory of 1868	608	uhsBKFwa7Uzvntn.exe	26
PID 608 wrote to memory of 1868	608	uhsBKFwa7Uzvntn.exe	26
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28
PID 608 wrote to memory of 1840	608	uhsBKFwa7Uzvntn.exe	28

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 608 set thread context of 1840	608	uhsBKFwa7Uzvntn.exe	28

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

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
1868	schtasks.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
6	api.ipify.org

C:\Users\Admin\AppData\Local\Temp\uhsBKFwa7Uzvntn.exe
"C:\Users\Admin\AppData\Local\Temp\uhsBKFwa7Uzvntn.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:608
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BmatPXnSR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3033.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1868
- C:\Users\Admin\AppData\Local\Temp\uhsBKFwa7Uzvntn.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious behavior: AddClipboardFormatListener
  PID:1840

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

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1840-4-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1840-6-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1840-7-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads