masslogger | 9f9c8fddfe9fb02c88d8cdaea6efe3a1f88e56af6bb71161e30a1196a8cd8438

General

Target

Swift.exe
Size

1.3MB
MD5

4a6cdb0a5b956461c3766686317b8f77
SHA1

daa8f5b4aa6330289bc802c0fe38d541bc5572bc
SHA256

9f9c8fddfe9fb02c88d8cdaea6efe3a1f88e56af6bb71161e30a1196a8cd8438
SHA512

7efcd96570d9613bf989d31f87783af201666286ecedc1d769817c57fda0056906ffe9a678f8cec76f61f3377501e86ea62195448de5d70c283b10002e8c3ca1

Score

10^/10

ransomware persistence 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: 7/16/2020 10:44:07 AM MassLogger Started: 7/16/2020 10:44:01 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> Disabled <|| Bot Killer ||> Disabled <|| Window Searcher ||> 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 ||> Disabled

Signatures

Loads dropped DLL 2 IoCs

pid	Process
284	Swift.exe
1892	.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\admin = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Desktop\\.exe"	reg.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	284	Swift.exe
Token: SeDebugPrivilege	1892	.exe
Token: SeDebugPrivilege	1984	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
284	Swift.exe
284	Swift.exe
284	Swift.exe
1892	.exe
1892	.exe
1892	.exe
1984	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1892 set thread context of 1984	1892	.exe	31

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
6	api.ipify.org

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

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 284 wrote to memory of 1508	284	Swift.exe	24
PID 284 wrote to memory of 1508	284	Swift.exe	24
PID 284 wrote to memory of 1508	284	Swift.exe	24
PID 284 wrote to memory of 1508	284	Swift.exe	24
PID 1508 wrote to memory of 1772	1508	cmd.exe	26
PID 1508 wrote to memory of 1772	1508	cmd.exe	26
PID 1508 wrote to memory of 1772	1508	cmd.exe	26
PID 1508 wrote to memory of 1772	1508	cmd.exe	26
PID 284 wrote to memory of 1892	284	Swift.exe	28
PID 284 wrote to memory of 1892	284	Swift.exe	28
PID 284 wrote to memory of 1892	284	Swift.exe	28
PID 284 wrote to memory of 1892	284	Swift.exe	28
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31
PID 1892 wrote to memory of 1984	1892	.exe	31

Executes dropped EXE 2 IoCs

pid	Process
1892	.exe
1984	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\Swift.exe
"C:\Users\Admin\AppData\Local\Temp\Swift.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v admin /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1508
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v admin /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
    3⤵
    - Adds Run key to start application
    PID:1772
- C:\Users\Admin\Desktop\.exe
  "C:\Users\Admin\Desktop\.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  PID:1892
- - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
    "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious behavior: EnumeratesProcesses
    - Executes dropped EXE
    PID:1984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1984-14-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1984-17-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1984-18-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download

Analysis

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