masslogger | f38bf49d1b80576d1df0cea02b590d52b16dfd03acfa6f9776fb010bd88ec38d

General

Target
CHANG_10928748.exe
Size 1.3MB
Sample200804-3d5edyfp9e
SHA256 f38bf49d1b80576d1df0cea02b590d52b16dfd03acfa6f9776fb010bd88ec38d
MD5 b8681b59671bbc3bfdf4b983f913bf6f
SHA1 52fae0a23be2b93f3d8954bcdae95a1daeb6914e
SHA512 65bb08df5ac02baec88fb8a5e4305b8e7e0b9424d7d76eaa33268a4dc48dcd41795068d8b5864dc59fc18ca45ed0857da9663f3c7757d8038a0bd54bea6c3f09
MD5 SHA1 SHA512

Score

10^/10

Path

Ransom Note

<|| v2.4.0.0 ||> 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: 8/4/2020 10:53:22 AM MassLogger Started: 8/4/2020 10:53:16 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\CHANG_10928748.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

Credentials

Creates scheduled task(s) 1 TTPs 1 IoCs

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

Scheduled Task

pid	Process
1892	schtasks.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 740 set thread context of 1916	740	CHANG_10928748.exe	26

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1916	CHANG_10928748.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	740	CHANG_10928748.exe
Token: SeDebugPrivilege	1916	CHANG_10928748.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 1892	740	CHANG_10928748.exe	24
PID 740 wrote to memory of 1892	740	CHANG_10928748.exe	24
PID 740 wrote to memory of 1892	740	CHANG_10928748.exe	24
PID 740 wrote to memory of 1892	740	CHANG_10928748.exe	24
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26
PID 740 wrote to memory of 1916	740	CHANG_10928748.exe	26

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1916	CHANG_10928748.exe

C:\Users\Admin\AppData\Local\Temp\CHANG_10928748.exe
"C:\Users\Admin\AppData\Local\Temp\CHANG_10928748.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AWeemSAC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD4EA.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1892
- C:\Users\Admin\AppData\Local\Temp\CHANG_10928748.exe
  "{path}"
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: AddClipboardFormatListener
  PID:1916