404keylogger | e87b86817a7a63d7084319ed07a798c9b64ddf482d7ee59549d4aa3280f20a08

General

Target

aviso de transfer.exe
Size

331KB
MD5

78beed59bdbe8e675f2ca67f22dd92be
SHA1

c6ddfea4e4163ca722f96a75c9070e18b404755d
SHA256

cab9baeed0b5b271cf9de3361483d662e52c75dd6a73544701980f29210dc49e
SHA512

e35f37f9b6d7068fbd68605e177ba313441e0b594347e21e65c2bbb60b46408e4d60bc01d22086b7d90fee69f7d596c88f7608f1c2a9d1fa4a924ccd26dd8c54
SSDEEP

6144:b11zsVVxiyNnpxz1FEQOVA9/f1uuOyMGGDfqztNY/rvX0H+KDfQ+44Ym2siyUe:x1zsVVxiqFEs9/f1ulGGDqztWu+2fQFW

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 1 IoCs

resource	yara_rule
behavioral2/memory/4908-12-0x0000000000400000-0x0000000000422000-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
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-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aviso de transfer.exe
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aviso de transfer.exe
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aviso de transfer.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
50	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4284 set thread context of 4908	4284	aviso de transfer.exe	100

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2932	4908	WerFault.exe	100

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	aviso de transfer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aviso de transfer.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4284	aviso de transfer.exe
4284	aviso de transfer.exe
4908	aviso de transfer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4284	aviso de transfer.exe
Token: SeDebugPrivilege	4908	aviso de transfer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4908	aviso de transfer.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 2296	4284	aviso de transfer.exe	99
PID 4284 wrote to memory of 2296	4284	aviso de transfer.exe	99
PID 4284 wrote to memory of 2296	4284	aviso de transfer.exe	99
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100
PID 4284 wrote to memory of 4908	4284	aviso de transfer.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aviso de transfer.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aviso de transfer.exe

C:\Users\Admin\AppData\Local\Temp\aviso de transfer.exe
"C:\Users\Admin\AppData\Local\Temp\aviso de transfer.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Users\Admin\AppData\Local\Temp\aviso de transfer.exe
  "C:\Users\Admin\AppData\Local\Temp\aviso de transfer.exe"
  2⤵
  PID:2296
- C:\Users\Admin\AppData\Local\Temp\aviso de transfer.exe
  "C:\Users\Admin\AppData\Local\Temp\aviso de transfer.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4908
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 1108
    3⤵
    - Program crash
    PID:2932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4908 -ip 4908
1⤵
PID:3812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/4284-8-0x0000000005BD0000-0x0000000005BDA000-memory.dmp

Filesize
40KB

Download
memory/4284-15-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/4284-0-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/4284-3-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/4284-4-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/4284-5-0x0000000005780000-0x000000000578A000-memory.dmp

Filesize
40KB

Download
memory/4284-6-0x00000000059D0000-0x0000000005A26000-memory.dmp

Filesize
344KB

Download
memory/4284-7-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/4284-2-0x00000000056D0000-0x000000000576C000-memory.dmp

Filesize
624KB

Download
memory/4284-1-0x0000000000E20000-0x0000000000E78000-memory.dmp

Filesize
352KB

Download
memory/4284-11-0x0000000001760000-0x00000000017B0000-memory.dmp

Filesize
320KB

Download
memory/4284-10-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/4284-9-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/4908-20-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-16-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-14-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-17-0x0000000006580000-0x00000000065E6000-memory.dmp

Filesize
408KB

Download
memory/4908-18-0x0000000006C10000-0x0000000006DD2000-memory.dmp

Filesize
1.8MB

Download
memory/4908-12-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

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