masslogger | 0a699d50cee9fc3eb46b0703c5502a84fbb357757853e25474683baf8f477fe0

General

Target

Na4hsgjtrPIobAM.exe
Size

1.2MB
MD5

11bb02cfce17265a128473afd7c40049
SHA1

9232267ebbbdb7599083f3340e4dc4d53fa7f96b
SHA256

0a699d50cee9fc3eb46b0703c5502a84fbb357757853e25474683baf8f477fe0
SHA512

f41eb62ccf52f71d94a9d731f84f16589207d4dd5343ca710b24bc9f3ab9585cd87f5c8eb15c14be810034341db98574c0de22a43f25ccc181201319e87e534c

Score

10^/10

ransomware spyware stealer masslogger

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\C8A579F880\Log.txt

Family

masslogger

Ransom Note

<|| v2.1.0.0 ||> 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: 7/17/2020 7:29:08 AM MassLogger Started: 7/17/2020 7:29:00 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Na4hsgjtrPIobAM.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> 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

Signatures

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 272 wrote to memory of 1868	272	Na4hsgjtrPIobAM.exe	26
PID 272 wrote to memory of 1868	272	Na4hsgjtrPIobAM.exe	26
PID 272 wrote to memory of 1868	272	Na4hsgjtrPIobAM.exe	26
PID 272 wrote to memory of 1868	272	Na4hsgjtrPIobAM.exe	26
PID 272 wrote to memory of 1764	272	Na4hsgjtrPIobAM.exe	28
PID 272 wrote to memory of 1764	272	Na4hsgjtrPIobAM.exe	28
PID 272 wrote to memory of 1764	272	Na4hsgjtrPIobAM.exe	28
PID 272 wrote to memory of 1764	272	Na4hsgjtrPIobAM.exe	28
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29
PID 272 wrote to memory of 520	272	Na4hsgjtrPIobAM.exe	29

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	272	Na4hsgjtrPIobAM.exe
Token: SeDebugPrivilege	520	Na4hsgjtrPIobAM.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
272	Na4hsgjtrPIobAM.exe
520	Na4hsgjtrPIobAM.exe
520	Na4hsgjtrPIobAM.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
520	Na4hsgjtrPIobAM.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 272 set thread context of 520	272	Na4hsgjtrPIobAM.exe	29

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
520	Na4hsgjtrPIobAM.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.

flow	ioc
5	api.ipify.org

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

C:\Users\Admin\AppData\Local\Temp\Na4hsgjtrPIobAM.exe
"C:\Users\Admin\AppData\Local\Temp\Na4hsgjtrPIobAM.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
PID:272
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JjgjWaSAzPgpP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp21E1.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1868
- C:\Users\Admin\AppData\Local\Temp\Na4hsgjtrPIobAM.exe
  "{path}"
  2⤵
  PID:1764
- C:\Users\Admin\AppData\Local\Temp\Na4hsgjtrPIobAM.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious behavior: AddClipboardFormatListener
  PID:520

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/520-4-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/520-6-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/520-7-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads