404keylogger | 85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d

General

Target

85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe
Size

332KB
MD5

173ec773d0b146dfb249629550901ded
SHA1

7bfa3586a135f95dba15b00385d8eec2f838d2be
SHA256

85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d
SHA512

a2a82ce38c42faa77acf038fecc7c95c1729d5d49ccbd6eb36e24d5f61c0435c633ba217cbde54df02623dc0092e4555c14b809ba0095d74a88ee123b956480f

Score

10^/10

404keylogger collection keylogger persistence stealer

Malware Config

Signatures

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

404 Keylogger Main Executable 1 IoCs

resource	yara_rule
behavioral1/memory/1964-57-0x0000000000400000-0x0000000000422000-memory.dmp	family_404keylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\HdfgI = "C:\\Users\\Admin\\AppData\\Local\\HdfgIH\\HdfgIHBpE.hta"	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.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
3	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1168	1964	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1964	InstallUtil.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1964	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1964	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1680 wrote to memory of 1964	1680	85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe	28
PID 1964 wrote to memory of 1168	1964	InstallUtil.exe	30
PID 1964 wrote to memory of 1168	1964	InstallUtil.exe	30
PID 1964 wrote to memory of 1168	1964	InstallUtil.exe	30
PID 1964 wrote to memory of 1168	1964	InstallUtil.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe
"C:\Users\Admin\AppData\Local\Temp\85e6b8d717a4665d3e698c5c262e702daea50d296da35fdf6ca0c58ff5a71b5d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\InstallUtil.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 1356
    3⤵
    - Program crash
    PID:1168

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

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1680-54-0x0000000000CD0000-0x0000000000D2A000-memory.dmp

Filesize
360KB

Download
memory/1680-55-0x00000000004A0000-0x00000000004C6000-memory.dmp

Filesize
152KB

Download
memory/1680-58-0x0000000000540000-0x0000000000543000-memory.dmp

Filesize
12KB

Download
memory/1964-57-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1964-59-0x0000000075E21000-0x0000000075E23000-memory.dmp

Filesize
8KB

Download

Analysis

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