404keylogger | 5f87d3d2de86061021fe30c5afe9d8e7154549036ba68200064658031c325eff

General

Target
QUOTATION REQUEST.exe
Size 646KB
Sample220521-bkkpfacab2
SHA256 4d10520e2b80ca42e98590435c36c5409a458d9a5bd0ad35b0f444d2ceb2626d
MD5 311102ca55b09ee930cfceca5e4c06da
SHA1 8fbe0182c4ae39acb97a23f16b5d758b4183ad4b
SHA512 0e812ff97fb68c2d635a681d12d21b997e81bb9a442bf1c375d7a459c1785bb355cb62227bb15672cd7146437d8f5274da8e348170c5570d247def339b8b73ee
MD5 SHA1 SHA512

Score

10^/10

404keylogger collection keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol
smtp
Host
us2.smtp.mailhostbox.com
Port
587
Username
[email protected]
Password
eJkG%KP9

Signatures

404 Keylogger
Information stealer and keylogger first seen in 2019.
stealer keylogger 404keylogger

404 Keylogger Main Executable 2 IoCs

resource	yara_rule
behavioral2/memory/2912-131-0x00000000008F0000-0x0000000000912000-memory.dmp	family_404keylogger
behavioral2/memory/2912-132-0x00000000008F0000-0x0000000000912000-memory.dmp	family_404keylogger

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION REQUEST.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION REQUEST.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION REQUEST.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2456 set thread context of 2912	2456	QUOTATION REQUEST.exe	78

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4776	2912	WerFault.exe	78

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2456	QUOTATION REQUEST.exe
2456	QUOTATION REQUEST.exe
2912	QUOTATION REQUEST.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2456	QUOTATION REQUEST.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2912	QUOTATION REQUEST.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2912	QUOTATION REQUEST.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 2912	2456	QUOTATION REQUEST.exe	78
PID 2456 wrote to memory of 2912	2456	QUOTATION REQUEST.exe	78
PID 2456 wrote to memory of 2912	2456	QUOTATION REQUEST.exe	78

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION REQUEST.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION REQUEST.exe

C:\Users\Admin\AppData\Local\Temp\QUOTATION REQUEST.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION REQUEST.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Local\Temp\QUOTATION REQUEST.exe
  "C:\Users\Admin\AppData\Local\Temp\QUOTATION REQUEST.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 2168
    3⤵
    - Program crash
    PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2912 -ip 2912
1⤵
PID:4736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2456-133-0x0000000000400000-0x00000000004A8000-memory.dmp

Download

memory/2912-131-0x00000000008F0000-0x0000000000912000-memory.dmp

Download

memory/2912-132-0x00000000008F0000-0x0000000000912000-memory.dmp

Download

memory/2912-134-0x0000000004A60000-0x0000000005004000-memory.dmp

Download

memory/2912-135-0x0000000004920000-0x00000000049BC000-memory.dmp

Download

memory/2912-136-0x00000000059F0000-0x0000000005A56000-memory.dmp

Download

memory/2912-137-0x0000000005EF0000-0x00000000060B2000-memory.dmp

Download

memory/2912-138-0x00000000062F0000-0x0000000006382000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads