snakekeylogger | 505741d52f89c89dc156768a0714a0e500d1ecae923de1eff6cea7b393cace78

General

Target

Payment Receipt 00000762511.pdf.exe
Size

512KB
MD5

973947da93027a6c61b949ab7f44f956
SHA1

3daf77c22b19276e29137ec95b0ec90249aeb6b5
SHA256

505741d52f89c89dc156768a0714a0e500d1ecae923de1eff6cea7b393cace78
SHA512

35ca5d7566d7b656d3843c555311324ac3f7173a36a331e522e4886ff41dda0d7e803feb57bd617c57bcb81bdffc62971afc512bf2d49f010e968a8bb14cf3ce
SSDEEP

12288:tt7kvCaWgLfmVJik+ZUbCPGCrtGhtu7STpJE:ttoCaWgLfwi5ZR9Ghtu7

Score

10^/10

snakekeylogger collection credential_access discovery execution keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2616-21-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2616-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2616-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2616-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2616-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2612	powershell.exe

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Receipt 00000762511.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Receipt 00000762511.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Receipt 00000762511.pdf.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 2812 set thread context of 2616	2812	Payment Receipt 00000762511.pdf.exe	31

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 3 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	Payment Receipt 00000762511.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment Receipt 00000762511.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2812	Payment Receipt 00000762511.pdf.exe
2812	Payment Receipt 00000762511.pdf.exe
2616	Payment Receipt 00000762511.pdf.exe
2612	powershell.exe
2616	Payment Receipt 00000762511.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	Payment Receipt 00000762511.pdf.exe
Token: SeDebugPrivilege	2616	Payment Receipt 00000762511.pdf.exe
Token: SeDebugPrivilege	2612	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 2612	2812	Payment Receipt 00000762511.pdf.exe	30
PID 2812 wrote to memory of 2612	2812	Payment Receipt 00000762511.pdf.exe	30
PID 2812 wrote to memory of 2612	2812	Payment Receipt 00000762511.pdf.exe	30
PID 2812 wrote to memory of 2612	2812	Payment Receipt 00000762511.pdf.exe	30
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31
PID 2812 wrote to memory of 2616	2812	Payment Receipt 00000762511.pdf.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Receipt 00000762511.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Receipt 00000762511.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Payment Receipt 00000762511.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Receipt 00000762511.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment Receipt 00000762511.pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2612
- C:\Users\Admin\AppData\Local\Temp\Payment Receipt 00000762511.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Receipt 00000762511.pdf.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:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

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

Replay Monitor

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Downloads

memory/2616-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2616-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2616-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2616-24-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2616-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2616-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2616-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2616-22-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2616-27-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2616-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2812-2-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2812-1-0x0000000000B70000-0x0000000000BF6000-memory.dmp

Filesize
536KB

Download
memory/2812-6-0x00000000047D0000-0x0000000004838000-memory.dmp

Filesize
416KB

Download
memory/2812-5-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-23-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-4-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2812-3-0x0000000000310000-0x0000000000320000-memory.dmp

Filesize
64KB

Download

Analysis

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