snakekeylogger | 822277335b300a70709e953b0e1a95bf79327afe6f107bc23159b4ba57d43ca0

General

Target

b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe
Size

366KB
MD5

1a691869fcecce8373212a390d1fa3e3
SHA1

a952c873d4b825940b012e2d0ceb849dd9634d64
SHA256

b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8
SHA512

6bcac7d3fd19a60fb7c6a52d67cc0a6d8f7684f0a2fa428647a0cc1a03fb2d25c9a0b75b215de432df81113e951c2442ec1b793c93e68f6b99ae6ef7ba62fe5e
SSDEEP

6144:L0nJBIKD2SJMz2dR8rZNlvzbV+dHhZdZcZmPaFTPM+OAHhBMdk6ceh9X3P9t0G:sJfD2S+nRbV+dHhZdZcZm2TPZHhBak6I

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6243209595:AAGECSmdSqJiVZcdFoBvotoaKcKT9Lz5Gvw/sendMessage?chat_id=1070926352

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral2/memory/1232-8-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral2/memory/1232-12-0x0000000005030000-0x0000000005040000-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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\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.

flow	ioc
20	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3060 set thread context of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1232	RegAsm.exe
1232	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1232	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88
PID 3060 wrote to memory of 1232	3060	b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe
"C:\Users\Admin\AppData\Local\Temp\b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3060
- 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:1232

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/1232-13-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/1232-8-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1232-17-0x0000000005F60000-0x0000000005F6A000-memory.dmp

Filesize
40KB

Download
memory/1232-16-0x0000000005FB0000-0x0000000006172000-memory.dmp

Filesize
1.8MB

Download
memory/1232-15-0x0000000005C90000-0x0000000005CE0000-memory.dmp

Filesize
320KB

Download
memory/1232-11-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/1232-14-0x0000000005030000-0x0000000005040000-memory.dmp

Filesize
64KB

Download
memory/1232-12-0x0000000005030000-0x0000000005040000-memory.dmp

Filesize
64KB

Download
memory/3060-5-0x0000000005780000-0x0000000005790000-memory.dmp

Filesize
64KB

Download
memory/3060-10-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3060-1-0x0000000000B80000-0x0000000000BE2000-memory.dmp

Filesize
392KB

Download
memory/3060-7-0x0000000005670000-0x000000000567A000-memory.dmp

Filesize
40KB

Download
memory/3060-0-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3060-6-0x0000000005830000-0x00000000058CC000-memory.dmp

Filesize
624KB

Download
memory/3060-4-0x00000000056A0000-0x0000000005732000-memory.dmp

Filesize
584KB

Download
memory/3060-3-0x0000000005D40000-0x00000000062E4000-memory.dmp

Filesize
5.6MB

Download
memory/3060-2-0x00000000055B0000-0x0000000005604000-memory.dmp

Filesize
336KB

Download

Analysis

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