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/2148-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2148-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2148-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2148-26-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2148-23-0x0000000000400000-0x0000000000426000-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
3004	powershell.exe
2120	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 1508 set thread context of 2148	1508	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	RegSvcs.exe
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

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
2668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1508	tax-invoice-0711.exe
1508	tax-invoice-0711.exe
2148	RegSvcs.exe
3004	powershell.exe
2120	powershell.exe
2148	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	tax-invoice-0711.exe
Token: SeDebugPrivilege	2148	RegSvcs.exe
Token: SeDebugPrivilege	2120	powershell.exe
Token: SeDebugPrivilege	3004	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 3004	1508	tax-invoice-0711.exe	31
PID 1508 wrote to memory of 3004	1508	tax-invoice-0711.exe	31
PID 1508 wrote to memory of 3004	1508	tax-invoice-0711.exe	31
PID 1508 wrote to memory of 3004	1508	tax-invoice-0711.exe	31
PID 1508 wrote to memory of 2120	1508	tax-invoice-0711.exe	33
PID 1508 wrote to memory of 2120	1508	tax-invoice-0711.exe	33
PID 1508 wrote to memory of 2120	1508	tax-invoice-0711.exe	33
PID 1508 wrote to memory of 2120	1508	tax-invoice-0711.exe	33
PID 1508 wrote to memory of 2668	1508	tax-invoice-0711.exe	34
PID 1508 wrote to memory of 2668	1508	tax-invoice-0711.exe	34
PID 1508 wrote to memory of 2668	1508	tax-invoice-0711.exe	34
PID 1508 wrote to memory of 2668	1508	tax-invoice-0711.exe	34
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	tax-invoice-0711.exe	37
PID 1508 wrote to memory of 2148	1508	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:1508
- 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:3004
- 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:2120
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xPtoEZCT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B4E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2668
- 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:2148

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\tmp1B4E.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
eb24ba965701a7900e5a4da5915c38a1

SHA1
0a84f1070aae5c5ba467e0de47af3a66a5cbb33c

SHA256
b86972e6be1d87770f03d6f850134af64b792a29cf8d1340613ec8899c6687a3

SHA512
502f872bd601ecba68dd73d18a18efbe872bc7444f824d84010b788c20c26371d6dd50841583d8c29e73f7503703de664fbba8cc187a4afcf7eade6c1f85fe08

Download Submit
memory/1508-4-0x0000000073EAE000-0x0000000073EAF000-memory.dmp

Filesize
4KB

Download
memory/1508-31-0x0000000073EA0000-0x000000007458E000-memory.dmp

Filesize
6.9MB

Download
memory/1508-0-0x0000000073EAE000-0x0000000073EAF000-memory.dmp

Filesize
4KB

Download
memory/1508-5-0x0000000073EA0000-0x000000007458E000-memory.dmp

Filesize
6.9MB

Download
memory/1508-6-0x0000000004EB0000-0x0000000004F18000-memory.dmp

Filesize
416KB

Download
memory/1508-2-0x0000000073EA0000-0x000000007458E000-memory.dmp

Filesize
6.9MB

Download
memory/1508-1-0x00000000000E0000-0x000000000016A000-memory.dmp

Filesize
552KB

Download
memory/1508-3-0x0000000000740000-0x0000000000758000-memory.dmp

Filesize
96KB

Download
memory/2148-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2148-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2148-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2148-26-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2148-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2148-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2148-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2148-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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