snakekeylogger | 5101a8d9f469c881b484d5e308c99802bdafdab686d20702fac5081755af7fcc

General

Target

Vessel Particulars.exe
Size

540KB
MD5

aca1506ec2fc90d9bd56cbbe91bd6386
SHA1

d2b443e927e57d8481fd6ddc5c7722d423815a9b
SHA256

da35f06d5f83c958940b5816901f091a1725f9af4398d94e7347550cf56be86b
SHA512

4e7af171c7ca0eb32616e53e63e59d41bda62e52ea801c8e005e8cc8d9f08cbb5aa59ea5203688efaf53a0e1d2c91a64a6cba225481f6a36ba08d4f96454f956
SSDEEP

12288:YiU+RfWk1Sm5bp+4yZXfcKa6Io24RPlA24:Yi3fWxIbc4yZ0xoDf

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7634300667:AAElS97UnedbkmPEFHxIY0TyKl484PsrjZY/sendMessage?chat_id=2135869667

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/636-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger
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-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Vessel Particulars.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Vessel Particulars.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Vessel Particulars.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
6	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4904 set thread context of 636	4904	Vessel Particulars.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 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	Vessel Particulars.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Vessel Particulars.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
636	Vessel Particulars.exe
636	Vessel Particulars.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	636	Vessel Particulars.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83
PID 4904 wrote to memory of 636	4904	Vessel Particulars.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Vessel Particulars.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Vessel Particulars.exe

C:\Users\Admin\AppData\Local\Temp\Vessel Particulars.exe
"C:\Users\Admin\AppData\Local\Temp\Vessel Particulars.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Local\Temp\Vessel Particulars.exe
  "C:\Users\Admin\AppData\Local\Temp\Vessel Particulars.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:636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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 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/636-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/636-17-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/636-16-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/636-15-0x0000000006D50000-0x0000000006F12000-memory.dmp

Filesize
1.8MB

Download
memory/636-14-0x0000000006B30000-0x0000000006B80000-memory.dmp

Filesize
320KB

Download
memory/636-11-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/636-10-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4904-8-0x0000000005720000-0x0000000005728000-memory.dmp

Filesize
32KB

Download
memory/4904-0-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/4904-7-0x00000000058D0000-0x000000000596C000-memory.dmp

Filesize
624KB

Download
memory/4904-6-0x00000000057E0000-0x0000000005836000-memory.dmp

Filesize
344KB

Download
memory/4904-4-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4904-12-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/4904-13-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4904-5-0x0000000005550000-0x000000000555A000-memory.dmp

Filesize
40KB

Download
memory/4904-3-0x0000000005590000-0x0000000005622000-memory.dmp

Filesize
584KB

Download
memory/4904-2-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download
memory/4904-1-0x0000000000AE0000-0x0000000000B6E000-memory.dmp

Filesize
568KB

Download

Analysis

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