snakekeylogger | 10b51c1b01c212fb397f492f3df0ca4a5847e2350d6df9f58ca50442f9e594b4

General

Target

ARRIVAL NOTICE.exe
Size

861KB
MD5

f7f9221902eedfdb7a72c156180d3a05
SHA1

6a91ffe9ee6ba2b919ee80111c27a1f0251e227e
SHA256

10b51c1b01c212fb397f492f3df0ca4a5847e2350d6df9f58ca50442f9e594b4
SHA512

ee0dea5f22bb0380f91d9db1402aea59f79ec3757e6101910b8e880f74c92fca576c71be51a0aa4c15d9a8b78ad3ab3edf278890dc40fd319f48580e21d50ab9
SSDEEP

12288:Xe3yg84uZ82+O4+siqTUi7huEn2hLaZ56QYZrUDr8wq2vzD1aZrmzt+wWZgQ/:Xe3+zZ8HO40/ilN2h+ZbkUDrDVaZ

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6041013494:AAH-I-5N7YCs5dQrpIdJ8toHohqsTM_GsfI/sendMessage?chat_id=6291600401

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2020-69-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2020-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2020-72-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2020-74-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2020-76-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ARRIVAL NOTICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ARRIVAL NOTICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ARRIVAL NOTICE.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 2020	2036	ARRIVAL NOTICE.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2036	ARRIVAL NOTICE.exe
2036	ARRIVAL NOTICE.exe
2036	ARRIVAL NOTICE.exe
2020	ARRIVAL NOTICE.exe
1260	powershell.exe
2020	ARRIVAL NOTICE.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	ARRIVAL NOTICE.exe
Token: SeDebugPrivilege	2020	ARRIVAL NOTICE.exe
Token: SeDebugPrivilege	1260	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 1260	2036	ARRIVAL NOTICE.exe	27
PID 2036 wrote to memory of 1260	2036	ARRIVAL NOTICE.exe	27
PID 2036 wrote to memory of 1260	2036	ARRIVAL NOTICE.exe	27
PID 2036 wrote to memory of 1260	2036	ARRIVAL NOTICE.exe	27
PID 2036 wrote to memory of 628	2036	ARRIVAL NOTICE.exe	29
PID 2036 wrote to memory of 628	2036	ARRIVAL NOTICE.exe	29
PID 2036 wrote to memory of 628	2036	ARRIVAL NOTICE.exe	29
PID 2036 wrote to memory of 628	2036	ARRIVAL NOTICE.exe	29
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31
PID 2036 wrote to memory of 2020	2036	ARRIVAL NOTICE.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ARRIVAL NOTICE.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ARRIVAL NOTICE.exe

C:\Users\Admin\AppData\Local\Temp\ARRIVAL NOTICE.exe
"C:\Users\Admin\AppData\Local\Temp\ARRIVAL NOTICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HDuGNrxSriwYr.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1260
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HDuGNrxSriwYr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDCC9.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:628
- C:\Users\Admin\AppData\Local\Temp\ARRIVAL NOTICE.exe
  "C:\Users\Admin\AppData\Local\Temp\ARRIVAL NOTICE.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDCC9.tmp

Filesize
1KB

MD5
f145a6c4dda7358685f4c9c71e28c6aa

SHA1
65e0160138f90b7c4396218f2c8700ad198eba84

SHA256
6f8705e4b4dbeaa0093aade19ac827dd92036771afe5358cc129a2ecf2624f71

SHA512
057d4cf0f537fc180d50e77788c0d74e9857cc4dab83af0d6589de0dfe38d42a3a8bc0c1f93c77a2e350b2164e711030feade9ce738b920476715c4508c1c98f

Download Submit
memory/1260-77-0x00000000024F0000-0x0000000002530000-memory.dmp

Filesize
256KB

Download
memory/2020-72-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2020-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2020-76-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2020-74-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2020-70-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2020-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2020-68-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2020-69-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2036-64-0x0000000001170000-0x0000000001198000-memory.dmp

Filesize
160KB

Download
memory/2036-57-0x0000000000590000-0x000000000059C000-memory.dmp

Filesize
48KB

Download
memory/2036-54-0x00000000011B0000-0x000000000128C000-memory.dmp

Filesize
880KB

Download
memory/2036-56-0x0000000000570000-0x0000000000584000-memory.dmp

Filesize
80KB

Download
memory/2036-58-0x0000000005E00000-0x0000000005EA0000-memory.dmp

Filesize
640KB

Download
memory/2036-55-0x0000000005030000-0x0000000005070000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads