404keylogger | 6e1e4c43639edf7e533f22aa67b4fbe57d43f8e66ce607ce61aef631fcc92ab3

General

Target

OC2211.exe
Size

587KB
MD5

b398016c2c3010ef8c0f27aa42b644a6
SHA1

3e4a79872d1b33f48bb6f07a21d5cb5806243194
SHA256

40ed2cee21f04d3dd5a62951a4b99976327816ee918255bc12b6d40247b2b1c0
SHA512

373ecc8e63b459b3d87ea835e69f4e924c0bd4ce37d00edf88609d29220778d40644b8347452c49d9c3c25a7925c7b605e40150351b685ec428c509f13c7dd88
SSDEEP

12288:KbeZ4+70pKXQlNVChbacUYBneDCAxRzaJVo4sqHm00Y1JkgB:oeyIObqneDCcqo7O551Jt

Score

10^/10

404keylogger collection credential_access discovery keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.maccinox.com
Port:
587
Username:
[email protected]
Password:
peru2016

Signatures

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

404 Keylogger Main Executable 5 IoCs

resource	yara_rule
behavioral1/memory/2916-17-0x0000000000400000-0x0000000000422000-memory.dmp	family_404keylogger
behavioral1/memory/2916-19-0x0000000000400000-0x0000000000422000-memory.dmp	family_404keylogger
behavioral1/memory/2916-21-0x0000000000400000-0x0000000000422000-memory.dmp	family_404keylogger
behavioral1/memory/2916-13-0x0000000000400000-0x0000000000422000-memory.dmp	family_404keylogger
behavioral1/memory/2916-11-0x0000000000400000-0x0000000000422000-memory.dmp	family_404keylogger

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Loads dropped DLL 5 IoCs

pid	Process
1764	WerFault.exe
1764	WerFault.exe
1764	WerFault.exe
1764	WerFault.exe
1764	WerFault.exe

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
T1552.001
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
T1552.001
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
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OC2211.exe
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OC2211.exe
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OC2211.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 2488 set thread context of 2916	2488	OC2211.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1764	2916	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OC2211.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OC2211.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	OC2211.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	OC2211.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2916	OC2211.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2916	OC2211.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2916	OC2211.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2488 wrote to memory of 2916	2488	OC2211.exe	29
PID 2916 wrote to memory of 1764	2916	OC2211.exe	31
PID 2916 wrote to memory of 1764	2916	OC2211.exe	31
PID 2916 wrote to memory of 1764	2916	OC2211.exe	31
PID 2916 wrote to memory of 1764	2916	OC2211.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OC2211.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OC2211.exe

C:\Users\Admin\AppData\Local\Temp\OC2211.exe
"C:\Users\Admin\AppData\Local\Temp\OC2211.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Users\Admin\AppData\Local\Temp\OC2211.exe
  "C:\Users\Admin\AppData\Local\Temp\OC2211.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 1824
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

4

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\OC2211.exe

Filesize
587KB

MD5
b398016c2c3010ef8c0f27aa42b644a6

SHA1
3e4a79872d1b33f48bb6f07a21d5cb5806243194

SHA256
40ed2cee21f04d3dd5a62951a4b99976327816ee918255bc12b6d40247b2b1c0

SHA512
373ecc8e63b459b3d87ea835e69f4e924c0bd4ce37d00edf88609d29220778d40644b8347452c49d9c3c25a7925c7b605e40150351b685ec428c509f13c7dd88

Download Submit
memory/2488-22-0x0000000073B60000-0x000000007424E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-2-0x0000000073B60000-0x000000007424E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-3-0x0000000000430000-0x000000000043A000-memory.dmp

Filesize
40KB

Download
memory/2488-1-0x0000000001260000-0x00000000012FA000-memory.dmp

Filesize
616KB

Download
memory/2488-5-0x0000000073B60000-0x000000007424E000-memory.dmp

Filesize
6.9MB

Download
memory/2488-6-0x0000000001200000-0x000000000125C000-memory.dmp

Filesize
368KB

Download
memory/2488-0-0x0000000073B6E000-0x0000000073B6F000-memory.dmp

Filesize
4KB

Download
memory/2488-4-0x0000000073B6E000-0x0000000073B6F000-memory.dmp

Filesize
4KB

Download
memory/2916-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-19-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2916-17-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2916-13-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2916-11-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2916-9-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2916-8-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2916-23-0x0000000073B60000-0x000000007424E000-memory.dmp

Filesize
6.9MB

Download
memory/2916-24-0x0000000073B60000-0x000000007424E000-memory.dmp

Filesize
6.9MB

Download
memory/2916-26-0x0000000073B60000-0x000000007424E000-memory.dmp

Filesize
6.9MB

Download
memory/2916-21-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

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