snakekeylogger | bf02f7e41f593c0f4bf6d5a8b97e0fefeb07763d62f35a9fe6705cca56bb895e

General

Target

dekont.pdf.exe
Size

699KB
MD5

48c9b0f3150fe9d1e2afd4da3dfa4874
SHA1

f08cc9e9c8f152cc376e48a0140f133e5a6315de
SHA256

bf02f7e41f593c0f4bf6d5a8b97e0fefeb07763d62f35a9fe6705cca56bb895e
SHA512

1869de08d6291d2ae60e47c6915b630e06e43d58bdf3796fb1eec2dd4cd288735e57607e403966251152ec79f8311b7e6113211326aa8b2afa0edd6f1a3b9381
SSDEEP

12288:rGYP2GC+sOL/GXh8L74mBfNUstzojBd0FycLUs3RhZFn5nErTNuywy5sLp3/MuJQ:rZCN+L74mBfNUstzooFyURhVnErJfJ+u

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.stilltech.ro
Port:
587
Username:
[email protected]
Password:
eurobit555ro
Email To:
[email protected]

Signatures

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

Snake Keylogger payload 6 IoCs

resource	yara_rule
behavioral1/memory/1632-67-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1632-69-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1632-71-0x000000000042028E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1632-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1632-73-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1632-75-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Office\15.0\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 1372 set thread context of 1632	1372	dekont.pdf.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1632	dekont.pdf.exe
1304	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	dekont.pdf.exe
Token: SeDebugPrivilege	1304	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 1304	1372	dekont.pdf.exe	28
PID 1372 wrote to memory of 1304	1372	dekont.pdf.exe	28
PID 1372 wrote to memory of 1304	1372	dekont.pdf.exe	28
PID 1372 wrote to memory of 1304	1372	dekont.pdf.exe	28
PID 1372 wrote to memory of 668	1372	dekont.pdf.exe	30
PID 1372 wrote to memory of 668	1372	dekont.pdf.exe	30
PID 1372 wrote to memory of 668	1372	dekont.pdf.exe	30
PID 1372 wrote to memory of 668	1372	dekont.pdf.exe	30
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32
PID 1372 wrote to memory of 1632	1372	dekont.pdf.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\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-1-5-21-575491160-2295418218-1540667289-1000\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
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dvrUOX.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1304
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dvrUOX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp27BD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:668
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1632

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

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\tmp27BD.tmp

Filesize
1KB

MD5
4fe75c88e518a5c3afb6efcebd9cee56

SHA1
4624a33dfa7fe2cee4f20c5832e49908aff312fe

SHA256
6927d910bc06789d84377b383903934609c239c6c3bad3a941aa9b1a2c36bf8d

SHA512
5dfab667a4d12ca5276a3267a8c80450a92b876b77e1d74b9a0dd181ad2998de65f9ca41badf3591e517c3318702d29ca64f45d6da2716b4faf8ade0955f59c2

Download Submit
memory/1304-78-0x000000006E340000-0x000000006E8EB000-memory.dmp

Filesize
5.7MB

Download
memory/1304-77-0x000000006E340000-0x000000006E8EB000-memory.dmp

Filesize
5.7MB

Download
memory/1372-63-0x0000000005BB0000-0x0000000005BD6000-memory.dmp

Filesize
152KB

Download
memory/1372-58-0x0000000005C40000-0x0000000005CA0000-memory.dmp

Filesize
384KB

Download
memory/1372-57-0x0000000000500000-0x000000000050C000-memory.dmp

Filesize
48KB

Download
memory/1372-54-0x0000000000DB0000-0x0000000000E66000-memory.dmp

Filesize
728KB

Download
memory/1372-55-0x0000000075E11000-0x0000000075E13000-memory.dmp

Filesize
8KB

Download
memory/1372-56-0x00000000004A0000-0x00000000004B8000-memory.dmp

Filesize
96KB

Download
memory/1632-69-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1632-67-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1632-70-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1632-73-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1632-75-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1632-64-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1632-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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