snakekeylogger | fc957edc0417e909aae5b70e151fd0c51362ff2efd6afe433ce1b92258fcc9cf

General

Target

Transferencia.exe
Size

607KB
MD5

392233b61d8c35ee4f7c8bb1159534cf
SHA1

381caa3d5a92736891424e5fcb4b19f8a88f4733
SHA256

fc957edc0417e909aae5b70e151fd0c51362ff2efd6afe433ce1b92258fcc9cf
SHA512

220419286d620562e022693fd6e786ef952215c39814e876efeaad789339ff1e10601e5dce758f44b3068b2faf2485e3ea7e4fbfcd8b666d8cac02054218a822
SSDEEP

12288:KQ2iNczJ+Wnqn++BrVc08+r/3uZGMMX9pEVq5XC2peRYbVi+TStmAFCM07v:l1qzMHr7883kGFpr5XCbtmAQ3

Score

10^/10

snakekeylogger collection discovery execution keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot8046970687:AAE86CdNXbS3TQ4T-piDLSQDOwzq2IS8a68/sendMessage?chat_id=5692813672

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2984-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2984-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2984-12-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2984-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2984-19-0x0000000000400000-0x0000000000426000-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
2892	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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Transferencia.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Transferencia.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Transferencia.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
4	checkip.dyndns.org
8	reallyfreegeoip.org
9	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2348 set thread context of 2984	2348	Transferencia.exe	33

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Transferencia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Transferencia.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2348	Transferencia.exe
2348	Transferencia.exe
2348	Transferencia.exe
2348	Transferencia.exe
2984	Transferencia.exe
2892	powershell.exe
2984	Transferencia.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	Transferencia.exe
Token: SeDebugPrivilege	2984	Transferencia.exe
Token: SeDebugPrivilege	2892	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2892	2348	Transferencia.exe	29
PID 2348 wrote to memory of 2892	2348	Transferencia.exe	29
PID 2348 wrote to memory of 2892	2348	Transferencia.exe	29
PID 2348 wrote to memory of 2892	2348	Transferencia.exe	29
PID 2348 wrote to memory of 2948	2348	Transferencia.exe	31
PID 2348 wrote to memory of 2948	2348	Transferencia.exe	31
PID 2348 wrote to memory of 2948	2348	Transferencia.exe	31
PID 2348 wrote to memory of 2948	2348	Transferencia.exe	31
PID 2348 wrote to memory of 2992	2348	Transferencia.exe	32
PID 2348 wrote to memory of 2992	2348	Transferencia.exe	32
PID 2348 wrote to memory of 2992	2348	Transferencia.exe	32
PID 2348 wrote to memory of 2992	2348	Transferencia.exe	32
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33
PID 2348 wrote to memory of 2984	2348	Transferencia.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Transferencia.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Transferencia.exe

C:\Users\Admin\AppData\Local\Temp\Transferencia.exe
"C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2348
- 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\Transferencia.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2892
- C:\Users\Admin\AppData\Local\Temp\Transferencia.exe
  "C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"
  2⤵
  PID:2948
- C:\Users\Admin\AppData\Local\Temp\Transferencia.exe
  "C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"
  2⤵
  PID:2992
- C:\Users\Admin\AppData\Local\Temp\Transferencia.exe
  "C:\Users\Admin\AppData\Local\Temp\Transferencia.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:2984

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/2348-0-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/2348-1-0x00000000001A0000-0x000000000023E000-memory.dmp

Filesize
632KB

Download
memory/2348-2-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-3-0x0000000001DF0000-0x0000000001E08000-memory.dmp

Filesize
96KB

Download
memory/2348-4-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/2348-5-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-6-0x00000000044E0000-0x000000000454C000-memory.dmp

Filesize
432KB

Download
memory/2348-21-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2984-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2984-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2984-20-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2984-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2984-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2984-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2984-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-24-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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