snakekeylogger | d275df9764628c52330d1cfcfe1e3c3eba4b29d536c825515128be883158c653

General

Target

tax-invoice-0711.exe
Size

526KB
MD5

d25d303ca9ec88e005cbab9f35d4d210
SHA1

3c037df248b5b25e139cc7fc6142e6cd371446a3
SHA256

dcf3ebaa281f05217097685b485ab9b56711ed87679cf755ee82ebfa4479c01e
SHA512

fe416e58f5f32c7807bba84bd3c33376130a841e89afc7b4c3fd10d38c779d1fb1636a4f85501d69e99e8b9aca06ec65538667daa64ccdb259522e584feb00c1
SSDEEP

12288:xf0D4BQWzdAUxsfSWSLne4ZdzkpnRmkYwhX83X4Nu1jW:xhQQZxmoze47KRmkYwxmXk6S

Score

10^/10

snakekeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6515689087:AAEnerpIS1xuf83Wz7mf2-PPkvlmor9Mt7U/sendMessage?chat_id=1015404316

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2508-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2508-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2508-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2508-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2508-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2648	powershell.exe
2788	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\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 1984 set thread context of 2508	1984	tax-invoice-0711.exe	37

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 5 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	tax-invoice-0711.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2908	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1984	tax-invoice-0711.exe
1984	tax-invoice-0711.exe
2508	RegSvcs.exe
2648	powershell.exe
2788	powershell.exe
2508	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	tax-invoice-0711.exe
Token: SeDebugPrivilege	2508	RegSvcs.exe
Token: SeDebugPrivilege	2648	powershell.exe
Token: SeDebugPrivilege	2788	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2648	1984	tax-invoice-0711.exe	31
PID 1984 wrote to memory of 2648	1984	tax-invoice-0711.exe	31
PID 1984 wrote to memory of 2648	1984	tax-invoice-0711.exe	31
PID 1984 wrote to memory of 2648	1984	tax-invoice-0711.exe	31
PID 1984 wrote to memory of 2788	1984	tax-invoice-0711.exe	33
PID 1984 wrote to memory of 2788	1984	tax-invoice-0711.exe	33
PID 1984 wrote to memory of 2788	1984	tax-invoice-0711.exe	33
PID 1984 wrote to memory of 2788	1984	tax-invoice-0711.exe	33
PID 1984 wrote to memory of 2908	1984	tax-invoice-0711.exe	35
PID 1984 wrote to memory of 2908	1984	tax-invoice-0711.exe	35
PID 1984 wrote to memory of 2908	1984	tax-invoice-0711.exe	35
PID 1984 wrote to memory of 2908	1984	tax-invoice-0711.exe	35
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37
PID 1984 wrote to memory of 2508	1984	tax-invoice-0711.exe	37

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\tax-invoice-0711.exe
"C:\Users\Admin\AppData\Local\Temp\tax-invoice-0711.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984
- 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\tax-invoice-0711.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2648
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xPtoEZCT.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xPtoEZCT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp165E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2908
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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

C:\Users\Admin\AppData\Local\Temp\tmp165E.tmp

Filesize
1KB

MD5
fecb612068c4566bee01c6bcbefa55a1

SHA1
cb1d31f8cde600076cdef56a4245eae1c3989137

SHA256
f3e7783a5acc13e92e89687326b3e074bebae6799f4f34f69664ee1ffbc7fffb

SHA512
4e90e910a3dbcd89c0d6ef055ef0c75574014b27eabd02f2a4142130bbcc38b4e03b75a0148b047e400fee06e34509e0aecddf732f049c59a4b986722c074960

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
056b178fe0885c47f52fe4349138d909

SHA1
290f28e64f216962b557a93cd66225b6dba4be0a

SHA256
9dd2dfe9589024073ffb5f6b51ad4c4ccb28c1c7c23dd385a61e02ab3ec7b2a4

SHA512
25c9aaf61f5891eafe55ccdd349c157dfd1e268deefb5c097b5ad104607e24c9af99700ad50094a2b811c9b0516686979755a3bf9f51a4cc9ffce729b8a4ce1e

Download Submit
memory/1984-4-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/1984-31-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-0-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/1984-5-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-6-0x0000000004CE0000-0x0000000004D48000-memory.dmp

Filesize
416KB

Download
memory/1984-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-1-0x0000000001050000-0x00000000010DA000-memory.dmp

Filesize
552KB

Download
memory/1984-3-0x0000000000450000-0x0000000000468000-memory.dmp

Filesize
96KB

Download
memory/2508-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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