snakekeylogger | 615a6cc0182c99d30f1421571d06684ebae0a937a38e91a6dc3925d68148eeb1

General

Target

dekont.pdf.exe
Size

538KB
MD5

5fefb939b823e2ab745c9be76201cfb4
SHA1

59cad4aab5564363ec8ebd8c9c8784422679f867
SHA256

615a6cc0182c99d30f1421571d06684ebae0a937a38e91a6dc3925d68148eeb1
SHA512

2e56d553ba3110c5dc121113b26468513ea06902343c46bd96b8573672636c12633df10e3c41b7ffbd2c8fbb3b54bb413f5c8adb00596c3447105cc2c3fe9108
SSDEEP

12288:S9r++61ogaQ3+qQCydqVqcgHtC4wtd9qdm1BmJ27XdtTJV:S5++61o1MqJHwBtD

Score

10^/10

snakekeylogger collection discovery execution keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/1392-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1392-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1392-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1392-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1392-23-0x0000000000400000-0x0000000000426000-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
2700	powershell.exe
1528	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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.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 2688 set thread context of 1392	2688	dekont.pdf.exe	36

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dekont.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dekont.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2688	dekont.pdf.exe
2688	dekont.pdf.exe
1392	dekont.pdf.exe
2700	powershell.exe
1528	powershell.exe
1392	dekont.pdf.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	dekont.pdf.exe
Token: SeDebugPrivilege	1392	dekont.pdf.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	1528	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2700	2688	dekont.pdf.exe	30
PID 2688 wrote to memory of 2700	2688	dekont.pdf.exe	30
PID 2688 wrote to memory of 2700	2688	dekont.pdf.exe	30
PID 2688 wrote to memory of 2700	2688	dekont.pdf.exe	30
PID 2688 wrote to memory of 1528	2688	dekont.pdf.exe	32
PID 2688 wrote to memory of 1528	2688	dekont.pdf.exe	32
PID 2688 wrote to memory of 1528	2688	dekont.pdf.exe	32
PID 2688 wrote to memory of 1528	2688	dekont.pdf.exe	32
PID 2688 wrote to memory of 2704	2688	dekont.pdf.exe	33
PID 2688 wrote to memory of 2704	2688	dekont.pdf.exe	33
PID 2688 wrote to memory of 2704	2688	dekont.pdf.exe	33
PID 2688 wrote to memory of 2704	2688	dekont.pdf.exe	33
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36
PID 2688 wrote to memory of 1392	2688	dekont.pdf.exe	36

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe

C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2688
- 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\dekont.pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2700
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LtqNXjPVtQPl.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1528
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LtqNXjPVtQPl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp24C0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2704
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.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:1392

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

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp24C0.tmp

Filesize
1KB

MD5
e48ddb39346e03a8ebfbe2a993ebbebc

SHA1
3b867fbe49b30d341e1debb501b577498ee35200

SHA256
41d823f8d8aa6340de658a0bd20f23946314451eb44bd6c7660f3bce5b30c074

SHA512
466def0f6b7d23496e6868645b74708776ff30181d965fa96b0f5b049492420cd9a412caf675d0e37b2bf8d74c372d68ccd434cf21cd8c377510b4048a68e410

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

Filesize
7KB

MD5
75a44a8ffa4c51697ea3ccc57e94e87f

SHA1
1e760d118a6de17630fce73504a5ca8722809114

SHA256
d8412fca3bc3a81cf502cc7e59e79dd12850656a7c362480aad406fc7bca1b7a

SHA512
f9ee56adef50b7f1735eeec6f451f3302b62090d293bb5e862ee5117a2bc96713f1841732c7e1743b99d04771b1740f7f86f888dde8b4836fe7960683b247396

Download Submit
memory/1392-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1392-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1392-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1392-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1392-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1392-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1392-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1392-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2688-6-0x0000000005720000-0x0000000005788000-memory.dmp

Filesize
416KB

Download
memory/2688-1-0x0000000000AC0000-0x0000000000B4E000-memory.dmp

Filesize
568KB

Download
memory/2688-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2688-2-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2688-3-0x0000000000510000-0x0000000000520000-memory.dmp

Filesize
64KB

Download
memory/2688-5-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2688-4-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2688-31-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads