snakekeylogger | a6273ca99ae2b4151febe90ac335b05b1d918e3a4e3a5b7da1fcd504be4c758e

General

Target

Bukti-Transfer.vbe
Size

9KB
MD5

3a62dc625d7dd22fd4c2aba6e7058dd4
SHA1

2b264827a034a913128d9fb362a3b789005ba4f0
SHA256

895e3a8a58ca8d0b65bdb92d181ea4ebd53b479872e75c7455e892b58149cb38
SHA512

0872c46046e565a8d0866e95a57a7dd1d9a86e3f17eba48901ffc2d913c598c2b44b4d285c508ade8446ba64de44b00d9baa74a72b59cda506ea58f711145b7f
SSDEEP

192:FbmzV2nbm3m6G53Vm6z22m6THZKmQmjFm6TH8Mjm8bDmDj02IbmHKmvFnbmVFxVx:ZFbUIyKLK0LBrqPG

Score

10^/10

snakekeylogger collection credential_access discovery execution keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
evqqlnwkcmogylje

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
evqqlnwkcmogylje
Email To:
[email protected]

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b83-9.dat	family_snakekeylogger
behavioral2/memory/2148-16-0x00000000000A0000-0x00000000000C6000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	4928	WScript.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2148	UYc.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 3 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

Credentials from Web Browsers
T1555.003
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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	UYc.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	UYc.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	UYc.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
14	checkip.dyndns.org

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	UYc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000_Classes\Local Settings	WScript.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2148	UYc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2148	UYc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2148	UYc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2148	UYc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 4716	4928	WScript.exe	82
PID 4928 wrote to memory of 4716	4928	WScript.exe	82
PID 4716 wrote to memory of 2148	4716	WScript.exe	83
PID 4716 wrote to memory of 2148	4716	WScript.exe	83
PID 4716 wrote to memory of 2148	4716	WScript.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	UYc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	UYc.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Bukti-Transfer.vbe"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\GAXYEO.js"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4716
- - C:\Users\Admin\AppData\Local\Temp\UYc.exe
    "C:\Users\Admin\AppData\Local\Temp\UYc.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - outlook_office_path
    - outlook_win_path
    PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

JavaScript

1

T1059.007

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

Query Registry

1

T1012

System Information Discovery

2

T1082

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\GAXYEO.js

Filesize
2.3MB

MD5
d66c8c34543b9c55c6a3b5f65399e54d

SHA1
76f8063ce1dea46a096e6151edf9713374e84eb6

SHA256
c69f5db538d67904adc6d53c663253c9534c8c8e2398264da0b794e3f6971c91

SHA512
34b8dfebaebcc6f46d175e89869152129bcead07da9f91ee3c14824c2ef8a0399810e7bd18be6c63a192584672a13d4f1e7cacc8ec41c3e514ae7b59afa260b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\UYc.exe

Filesize
127KB

MD5
1059945eca2d1f4c6353dd139c384b94

SHA1
56c115c71e1c545415cdbbeb1acace1bb19860ff

SHA256
9751d1f8ca5488e5a17426d2d92af5daf7761deec3b7c9ccab0769d9cd25e49c

SHA512
a4794448080ea34b3bd0ff48bd5f4db3dbf4db60a99d29ae98c3f73e438e164ddd5acc22cbbfdd987880da3c80f58a5ac1ee1ac1e66c996296406b757cee2e67

Download Submit
memory/2148-16-0x00000000000A0000-0x00000000000C6000-memory.dmp

Filesize
152KB

Download
memory/2148-17-0x00000000050A0000-0x0000000005644000-memory.dmp

Filesize
5.6MB

Download
memory/2148-18-0x0000000004AF0000-0x0000000004B8C000-memory.dmp

Filesize
624KB

Download
memory/2148-19-0x0000000006020000-0x00000000061E2000-memory.dmp

Filesize
1.8MB

Download
memory/2148-20-0x0000000006290000-0x0000000006322000-memory.dmp

Filesize
584KB

Download
memory/2148-21-0x0000000006650000-0x000000000665A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads