snakekeylogger | 75b520a76495b24d67cdd55903a423bb130cfc8ecbdc4451e4d7ed79d8739cc8

General

Target

General Attachment.exe
Size

461KB
MD5

103899e1f548e738bb530cb3201cecb9
SHA1

a9068bdcff88484a1c9dcdef0c320032e154810a
SHA256

75b520a76495b24d67cdd55903a423bb130cfc8ecbdc4451e4d7ed79d8739cc8
SHA512

7d6ce52742dbab4efd3ce040a066b92c7b4603956f174b047f461c49adbe29f5a550b416c0dcc86398d876f0168c81b322b577dcf2ed4f608308915d3a76a8f0
SSDEEP

12288:IjgZm1Qud+hkCbkibFWexzNA85cs3Can:2uud+hPHbFJ+2r7n

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3636-12-0x0000000000770000-0x0000000000796000-memory.dmp	family_snakekeylogger
behavioral2/memory/3636-13-0x0000000004FC0000-0x0000000004FD0000-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
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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.

Processes:

flow ioc

29 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

General Attachment.exe

description pid process target process

PID 2860 set thread context of 3636 2860 General Attachment.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

3636 RegAsm.exe
3636 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 3636 RegAsm.exe

flow	ioc
29	checkip.dyndns.org

description	pid	process	target process
PID 2860 set thread context of 3636	2860	General Attachment.exe	RegAsm.exe

pid	process
3636	RegAsm.exe
3636	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3636	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

General Attachment.exe

description	pid	process	target process
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe
PID 2860 wrote to memory of 3636	2860	General Attachment.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\General Attachment.exe
"C:\Users\Admin\AppData\Local\Temp\General Attachment.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2860

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2860-0-0x0000000000870000-0x00000000008E8000-memory.dmp

Filesize
480KB

Download
memory/2860-1-0x0000000074C20000-0x00000000753D0000-memory.dmp

Filesize
7.7MB

Download
memory/2860-2-0x0000000005280000-0x0000000005290000-memory.dmp

Filesize
64KB

Download
memory/2860-3-0x0000000005210000-0x0000000005264000-memory.dmp

Filesize
336KB

Download
memory/2860-4-0x0000000005840000-0x0000000005DE4000-memory.dmp

Filesize
5.6MB

Download
memory/2860-5-0x0000000005370000-0x0000000005402000-memory.dmp

Filesize
584KB

Download
memory/2860-6-0x00000000054B0000-0x000000000554C000-memory.dmp

Filesize
624KB

Download
memory/2860-7-0x0000000005330000-0x0000000005338000-memory.dmp

Filesize
32KB

Download
memory/2860-10-0x0000000074C20000-0x00000000753D0000-memory.dmp

Filesize
7.7MB

Download
memory/3636-11-0x0000000074C20000-0x00000000753D0000-memory.dmp

Filesize
7.7MB

Download
memory/3636-12-0x0000000000770000-0x0000000000796000-memory.dmp

Filesize
152KB

Download
memory/3636-13-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

Filesize
64KB

Download
memory/3636-14-0x0000000074C20000-0x00000000753D0000-memory.dmp

Filesize
7.7MB

Download
memory/3636-15-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

Filesize
64KB

Download
memory/3636-16-0x0000000002390000-0x00000000023E0000-memory.dmp

Filesize
320KB

Download
memory/3636-17-0x0000000005FD0000-0x0000000006192000-memory.dmp

Filesize
1.8MB

Download
memory/3636-18-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads