snakekeylogger | 7d90f4b1e9a959b95cf1ee34ca507697cd07f786042206470c5e049a034fc44f

General

Target

DEKONTU.exe
Size

1008KB
MD5

5f7700145f1cc51409e66bc4572bfe29
SHA1

c56cfd66f3c796262013bf5c2ecb31a77e060bed
SHA256

7d90f4b1e9a959b95cf1ee34ca507697cd07f786042206470c5e049a034fc44f
SHA512

d6e883d758a85b5357b23764fd13bbc3a1561f50a1f38b1d96fff4f408e86a875bd8f5f271868e0225576bc43b13dd643d02871d271f180b067c924e04ef54f3
SSDEEP

24576:2u6J33O0c+JY5UZ+XC0kGso6Fa6tzqaPL3leWY:Yu0c++OCvkGs9Fa6pY

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7525931722:AAHv5VReYz4Tdv44qTVu1nWYViZknndh3TU/sendMessage?chat_id=7361435574

Signatures

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

Snake Keylogger payload 4 IoCs

resource	yara_rule
behavioral1/memory/1892-13-0x0000000000090000-0x00000000000B6000-memory.dmp	family_snakekeylogger
behavioral1/memory/1892-16-0x0000000000090000-0x00000000000B6000-memory.dmp	family_snakekeylogger
behavioral1/memory/1892-9-0x0000000000090000-0x00000000000B6000-memory.dmp	family_snakekeylogger
behavioral1/memory/1892-8-0x0000000000090000-0x00000000000B6000-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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2036 set thread context of 1892	2036	DEKONTU.exe	30

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1892	RegSvcs.exe
1892	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2036	DEKONTU.exe
2036	DEKONTU.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2036	DEKONTU.exe
2036	DEKONTU.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2036	DEKONTU.exe
2036	DEKONTU.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30
PID 2036 wrote to memory of 1892	2036	DEKONTU.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\DEKONTU.exe
"C:\Users\Admin\AppData\Local\Temp\DEKONTU.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:2036
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\DEKONTU.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:1892

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

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Downloads

memory/1892-13-0x0000000000090000-0x00000000000B6000-memory.dmp

Filesize
152KB

Download
memory/1892-16-0x0000000000090000-0x00000000000B6000-memory.dmp

Filesize
152KB

Download
memory/1892-9-0x0000000000090000-0x00000000000B6000-memory.dmp

Filesize
152KB

Download
memory/1892-8-0x0000000000090000-0x00000000000B6000-memory.dmp

Filesize
152KB

Download
memory/1892-17-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/1892-18-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1892-19-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/1892-20-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2036-6-0x0000000000800000-0x0000000000C00000-memory.dmp

Filesize
4.0MB

Download

Analysis

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