masslogger | e4031bfc8a9e6268a0c5c85697424583fcf998bc75728a3b9b2f779879f167a4

General

Target

UOg6ZfxoyRuAGSn.exe
Size

976KB
MD5

7bf5ded25fe2da584758d62b972f137c
SHA1

1ef899d23c5e4a088d82cdc545d317df170bdc20
SHA256

e4031bfc8a9e6268a0c5c85697424583fcf998bc75728a3b9b2f779879f167a4
SHA512

72a2386e36347553c63b1efff9f84e005b782c087faa4227876b54c316c9d195efa8cf866e8232ada9cfea9b5aef5750a7887c61c5269883948296591e918051

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: 7/14/2020 3:45:01 PM MassLogger Started: 7/14/2020 3:44:55 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\UOg6ZfxoyRuAGSn.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 SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1292 set thread context of 1768	1292	UOg6ZfxoyRuAGSn.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	UOg6ZfxoyRuAGSn.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1768	UOg6ZfxoyRuAGSn.exe
1768	UOg6ZfxoyRuAGSn.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1768	UOg6ZfxoyRuAGSn.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

pid	Process
1816	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 WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 1816	1292	UOg6ZfxoyRuAGSn.exe	26
PID 1292 wrote to memory of 1816	1292	UOg6ZfxoyRuAGSn.exe	26
PID 1292 wrote to memory of 1816	1292	UOg6ZfxoyRuAGSn.exe	26
PID 1292 wrote to memory of 1816	1292	UOg6ZfxoyRuAGSn.exe	26
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28
PID 1292 wrote to memory of 1768	1292	UOg6ZfxoyRuAGSn.exe	28

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1768	UOg6ZfxoyRuAGSn.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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
4	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\UOg6ZfxoyRuAGSn.exe
"C:\Users\Admin\AppData\Local\Temp\UOg6ZfxoyRuAGSn.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aHrQlvhZde" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB4BD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1816
- C:\Users\Admin\AppData\Local\Temp\UOg6ZfxoyRuAGSn.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:1768

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/1768-4-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1768-6-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1768-7-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads