snakekeylogger | 99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43

General

Target

file.exe
Size

3.6MB
MD5

34aad6fec4fa9e1387d268bb6f24f758
SHA1

959cca79e07e7a9589f05ac46d1bf9563d38de8b
SHA256

99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43
SHA512

85caddccbef84b9cbd6ad7cc100e3183a72ff99cb4485e7426d06f38aed9e163d5e3c072b5d33b6adf44070955e8a71d1843c5bdb3a1bd3fd136b56ecc42c9ea
SSDEEP

49152:TBwDUAR6Qzk7UHlj796h+16eUMTycWaX/Ngvv1VlHIPIV/CdQvJuJ44wPcbErkcT:TKQtQzv9XUMmczWvnlo0KSj5L1Ln9

Score

10^/10

snakekeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7692220058:AAEny12fSzuKXI7iNJaESECu5UR80nmwLAQ/sendMessage?chat_id=7342994424

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2724-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2724-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2724-22-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2724-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2724-17-0x0000000000400000-0x0000000000426000-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
904	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.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 2348 set thread context of 2724	2348	file.exe	35

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 4 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	file.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	vbc.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
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2724	vbc.exe
904	powershell.exe
2724	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	vbc.exe
Token: SeDebugPrivilege	904	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 904	2348	file.exe	31
PID 2348 wrote to memory of 904	2348	file.exe	31
PID 2348 wrote to memory of 904	2348	file.exe	31
PID 2348 wrote to memory of 904	2348	file.exe	31
PID 2348 wrote to memory of 2740	2348	file.exe	32
PID 2348 wrote to memory of 2740	2348	file.exe	32
PID 2348 wrote to memory of 2740	2348	file.exe	32
PID 2348 wrote to memory of 2740	2348	file.exe	32
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35
PID 2348 wrote to memory of 2724	2348	file.exe	35

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\Roaming\FVhIjYtGTAjNkN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:904
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVhIjYtGTAjNkN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2740
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

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\tmp5E.tmp

Filesize
1KB

MD5
c12ee27164892dcc511a462cfcdacf2f

SHA1
adf96aae6a41633160208403d0ca754c8c56664d

SHA256
abee2823e5b9e2611e8f74afe34d2cd39a1b8b41c1f7e24fb6160edaea863645

SHA512
ff939449bd8dd988729258d9ecfe63393454a2be76f86b176df4c1a8fb459eff516cd91bb6c7e5f93713fdad62d4e0e7cff64c95fa35ad284d670d0c2d427a11

Download Submit
memory/2348-0-0x000000007422E000-0x000000007422F000-memory.dmp

Filesize
4KB

Download
memory/2348-1-0x0000000000320000-0x0000000000416000-memory.dmp

Filesize
984KB

Download
memory/2348-2-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-3-0x0000000000500000-0x000000000051E000-memory.dmp

Filesize
120KB

Download
memory/2348-4-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-5-0x0000000004D80000-0x0000000004DEC000-memory.dmp

Filesize
432KB

Download
memory/2348-26-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/2724-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2724-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2724-22-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2724-21-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2724-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2724-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2724-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads