snakekeylogger | 3c4b8818b3e073f0e5ac71ad850ae2ef3f1a5270d99169ee9892fe86977642af

General

Target

CaixaBank _ banca digital CaixaBankNow.exe
Size

767KB
MD5

4b6be38cb9bf11d6dfe312668ada7616
SHA1

fef22666290a4dea202b4cce1ad934af6f61fd56
SHA256

3c4b8818b3e073f0e5ac71ad850ae2ef3f1a5270d99169ee9892fe86977642af
SHA512

2682673865311c2eda1c862f45974c5f43ff22357d8ccf849f91a8339a0095b1c7a1acf19ada128ef62c399eaf5ef61cd7f5e8e82b56df5fecc115a65ecefa81
SSDEEP

12288:Lx+OSUAh3NVr572iNa7xdvo/MdyrhFgtDsuBHsSj5J4+saBGHfNP4yKylHaC1Z4h:0N1U9BqmycgiH75BMNP4yKDr3RXl/o1m

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.mutuadebasto.pt
Port:
587
Username:
[email protected]
Password:
mutua_Fernando123

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.mutuadebasto.pt
Port:
587
Username:
[email protected]
Password:
mutua_Fernando123
Email To:
[email protected]

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/1604-140-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CaixaBank _ banca digital CaixaBankNow.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CaixaBank _ banca digital CaixaBankNow.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CaixaBank _ banca digital CaixaBankNow.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
20	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5084 set thread context of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
5084	CaixaBank _ banca digital CaixaBankNow.exe
5084	CaixaBank _ banca digital CaixaBankNow.exe
5084	CaixaBank _ banca digital CaixaBankNow.exe
5084	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe
1604	CaixaBank _ banca digital CaixaBankNow.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1604	CaixaBank _ banca digital CaixaBankNow.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5084	CaixaBank _ banca digital CaixaBankNow.exe
Token: SeDebugPrivilege	1604	CaixaBank _ banca digital CaixaBankNow.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 2272	5084	CaixaBank _ banca digital CaixaBankNow.exe	84
PID 5084 wrote to memory of 2272	5084	CaixaBank _ banca digital CaixaBankNow.exe	84
PID 5084 wrote to memory of 2272	5084	CaixaBank _ banca digital CaixaBankNow.exe	84
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85
PID 5084 wrote to memory of 1604	5084	CaixaBank _ banca digital CaixaBankNow.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CaixaBank _ banca digital CaixaBankNow.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CaixaBank _ banca digital CaixaBankNow.exe

C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe
"C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe
  "C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe"
  2⤵
  PID:2272
- C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe
  "C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\CaixaBank _ banca digital CaixaBankNow.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1604-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1604-143-0x00000000055B0000-0x00000000055C0000-memory.dmp

Filesize
64KB

Download
memory/1604-144-0x0000000006C50000-0x0000000006E12000-memory.dmp

Filesize
1.8MB

Download
memory/1604-145-0x00000000055B0000-0x00000000055C0000-memory.dmp

Filesize
64KB

Download
memory/5084-133-0x0000000000250000-0x0000000000316000-memory.dmp

Filesize
792KB

Download
memory/5084-134-0x0000000005040000-0x00000000055E4000-memory.dmp

Filesize
5.6MB

Download
memory/5084-135-0x0000000004B90000-0x0000000004C22000-memory.dmp

Filesize
584KB

Download
memory/5084-136-0x0000000004D30000-0x0000000004D3A000-memory.dmp

Filesize
40KB

Download
memory/5084-137-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5084-138-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5084-139-0x00000000067E0000-0x000000000687C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads