404keylogger | 35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4

General

Target

35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe
Size

375KB
MD5

3ef6284d5ff32226b50f77faf6851a82
SHA1

af506a31db5d94eb9b77585651732e516291720d
SHA256

35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4
SHA512

a1fd23795a2c0eb4a676e6c9b8f7e6e3a02717b273414b4b77e49602fcfd99b8ca71a14f6d3ae8a931e88de96b4c3114fce715ce5d855742e76b7e0fbf91feb5

Score

10^/10

404keylogger collection keylogger persistence stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
]WqfQ8cSP2)6O

Signatures

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

404 Keylogger Main Executable 1 IoCs

resource	yara_rule
behavioral2/memory/4912-135-0x0000000000400000-0x0000000000422000-memory.dmp	family_404keylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CndMq = "C:\\Users\\Admin\\AppData\\Local\\CndMqk\\CndMqkmDL.hta"	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.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 3116 set thread context of 4912	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4168	4912	WerFault.exe	80

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4912	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe
3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4912	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 2200	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	79
PID 3116 wrote to memory of 2200	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	79
PID 3116 wrote to memory of 2200	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	79
PID 3116 wrote to memory of 4912	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	80
PID 3116 wrote to memory of 4912	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	80
PID 3116 wrote to memory of 4912	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	80
PID 3116 wrote to memory of 4912	3116	35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe	80

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	RegSvcs.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	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe
"C:\Users\Admin\AppData\Local\Temp\35967d502af4e8613eee696586c27b6823580e6d9aeee5adec20186083f8bec4.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegSvcs.exe"
  2⤵
  PID:2200
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegSvcs.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4912 -s 2164
    3⤵
    - Program crash
    PID:4168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4912 -ip 4912
1⤵
PID:4216

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/3116-130-0x0000000000CF0000-0x0000000000D52000-memory.dmp

Filesize
392KB

Download
memory/3116-131-0x00000000057F0000-0x0000000005882000-memory.dmp

Filesize
584KB

Download
memory/3116-132-0x0000000005EE0000-0x0000000006484000-memory.dmp

Filesize
5.6MB

Download
memory/3116-134-0x00000000058B0000-0x00000000058B3000-memory.dmp

Filesize
12KB

Download
memory/4912-135-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4912-136-0x0000000005820000-0x00000000058BC000-memory.dmp

Filesize
624KB

Download
memory/4912-137-0x0000000006770000-0x00000000067D6000-memory.dmp

Filesize
408KB

Download
memory/4912-138-0x0000000006F40000-0x0000000007102000-memory.dmp

Filesize
1.8MB

Download

Analysis

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