snakekeylogger | 24dfe4a13d3abfd50e69e392dece53aae13fb9d91028663f7cb7de15e4d6c60a

General

Target

final invoice.exe
Size

983KB
MD5

6249cd12ccdda8ed2f251879c751c6c8
SHA1

825dc5e7289f101a172ed4926ac80e766b6ec53f
SHA256

a606e580983fdd746d8a8f9a4007ecc5b209565356ad3341b7d4cf0793cd4df8
SHA512

43f4c439dcc29f55d43a6c15313d65eb4908d52a60ddd13d18a78eb96fb8ab8ce1f88d8b2b1ce765f069d7105f5f700bcc2682c2404f68db88f3cc51594a3b2e
SSDEEP

24576:Ou6J33O0c+JY5UZ+XC0kGso6FanOtVayGHWY:Au0c++OCvkGs9FanOtVaCY

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7622409620:AAGYObz0BTtGB6EjTnYqQW3bW6b_vAkdZK4/sendMessage?chat_id=7000018009

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/2308-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
21	checkip.dyndns.org
25	reallyfreegeoip.org
26	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1856 set thread context of 2308	1856	final invoice.exe	89

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3356	1856	WerFault.exe	85

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	final invoice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2308	RegSvcs.exe
2308	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1856	final invoice.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2308	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1856	final invoice.exe
1856	final invoice.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1856	final invoice.exe
1856	final invoice.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2308	1856	final invoice.exe	89
PID 1856 wrote to memory of 2308	1856	final invoice.exe	89
PID 1856 wrote to memory of 2308	1856	final invoice.exe	89
PID 1856 wrote to memory of 2308	1856	final invoice.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\final invoice.exe
"C:\Users\Admin\AppData\Local\Temp\final invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\final invoice.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 700
  2⤵
  - Program crash
  PID:3356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1856 -ip 1856
1⤵
PID:1096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1856-6-0x0000000000DA0000-0x00000000011A0000-memory.dmp

Filesize
4.0MB

Download
memory/2308-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2308-8-0x0000000073E4E000-0x0000000073E4F000-memory.dmp

Filesize
4KB

Download
memory/2308-10-0x0000000004F10000-0x0000000004FAC000-memory.dmp

Filesize
624KB

Download
memory/2308-9-0x0000000005420000-0x00000000059C4000-memory.dmp

Filesize
5.6MB

Download
memory/2308-11-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/2308-12-0x0000000073E4E000-0x0000000073E4F000-memory.dmp

Filesize
4KB

Download
memory/2308-13-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/2308-14-0x00000000061E0000-0x0000000006230000-memory.dmp

Filesize
320KB

Download
memory/2308-15-0x0000000006400000-0x00000000065C2000-memory.dmp

Filesize
1.8MB

Download
memory/2308-16-0x00000000062D0000-0x0000000006362000-memory.dmp

Filesize
584KB

Download
memory/2308-17-0x0000000006260000-0x000000000626A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing