snakekeylogger | 27fccd17dfc39aa9d29b5129d4f086b7ed9c361915ab2d900cb55c268ae4bb03

General

Target

FACTURA PROFORMA pdf.exe
Size

826KB
MD5

708b864fcebfe235752eeb2c5ccff0c8
SHA1

61295aeeb9d0fca8d778d85878d4ba3ec927b354
SHA256

6a2167c7c8ec6a6101465cb228421143cf18abf246a898cbdc6026b9824f205f
SHA512

9f9f2138d9978228164e93e19b09bc79aa306d282d3abcac5d85430e4551c6e3e78b2ab6e0a9feae7c451076e71c34d2dcc60650345ff79b44fa52cba88bd824
SSDEEP

12288:xBHINMAgeY0uLVgtXYIEv1G7QTlLLfUZEp08aJE231XW9xc645v:bHEMpoupaXYmQhffKEy9OK1Uw5v

Score

10^/10

snakekeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7979504653:AAFm_-f-R46w_TvBkt1kfgnnTRSttNIPYiY/sendMessage?chat_id=5600682828

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2840-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2840-10-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

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
2956	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\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
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

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
8	reallyfreegeoip.org
9	reallyfreegeoip.org
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 2840	2196	FACTURA PROFORMA 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	FACTURA PROFORMA pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2840	RegSvcs.exe
2956	powershell.exe
2840	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	RegSvcs.exe
Token: SeDebugPrivilege	2956	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2956	2196	FACTURA PROFORMA pdf.exe	30
PID 2196 wrote to memory of 2956	2196	FACTURA PROFORMA pdf.exe	30
PID 2196 wrote to memory of 2956	2196	FACTURA PROFORMA pdf.exe	30
PID 2196 wrote to memory of 2956	2196	FACTURA PROFORMA pdf.exe	30
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31
PID 2196 wrote to memory of 2840	2196	FACTURA PROFORMA pdf.exe	31

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\FACTURA PROFORMA pdf.exe
"C:\Users\Admin\AppData\Local\Temp\FACTURA PROFORMA pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- 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\FACTURA PROFORMA pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2956
- 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:2840

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

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

Replay Monitor

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Downloads

memory/2196-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/2196-1-0x00000000008D0000-0x00000000009A4000-memory.dmp

Filesize
848KB

Download
memory/2196-2-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-3-0x0000000000A20000-0x0000000000A3E000-memory.dmp

Filesize
120KB

Download
memory/2196-4-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/2196-5-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-6-0x0000000000480000-0x00000000004EA000-memory.dmp

Filesize
424KB

Download
memory/2196-18-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2840-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-19-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download
memory/2840-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2840-22-0x00000000746A0000-0x0000000074D8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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