404keylogger | 55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2022 15:20

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General

Target

55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe
Size

1.1MB
MD5

d065412f7009c7503dd316f39421237a
SHA1

7bfc3beb5a530ecfb21b87fb74a97b5ca9d19da9
SHA256

55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036
SHA512

398fdc3680aa5fdf784d2e593ca041b7d5547df3a5825b88eba85da8a94c995cc76b0bdc5521b79e43764e9f47c8df9edca703b513f32fee3b75704b78a5325b

Score

10^/10

404keylogger collection keylogger 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
behavioral2/memory/3396-131-0x0000000000400000-0x000000000041E000-memory.dmp	family_404keylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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
2	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3880 set thread context of 3396	3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1036	3396	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3396	MSBuild.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe
3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe
3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe
3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe
3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3880 wrote to memory of 3396	3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe	82
PID 3880 wrote to memory of 3396	3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe	82
PID 3880 wrote to memory of 3396	3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe	82
PID 3880 wrote to memory of 3396	3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe	82
PID 3880 wrote to memory of 3396	3880	55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe
"C:\Users\Admin\AppData\Local\Temp\55ab05e1697ce4d0f3a90ccb74c8af6c484d91d1dfd69f1509aa8b2e4aa61036.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3880
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3396
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3396 -s 1524
    3⤵
    - Program crash
    PID:1036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3396 -ip 3396
1⤵
PID:3828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3396-131-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3396-137-0x0000000005580000-0x0000000005B24000-memory.dmp

Filesize
5.6MB

Download
memory/3396-138-0x0000000004F20000-0x0000000004FBC000-memory.dmp

Filesize
624KB

Download
memory/3396-139-0x0000000006000000-0x00000000061C2000-memory.dmp

Filesize
1.8MB

Download
memory/3880-136-0x00000000023D0000-0x00000000023E9000-memory.dmp

Filesize
100KB

Download