snakekeylogger | b4b38d7d62a408e89a3c7c0157405cf65862ddb6a1fb23a931311a468d051890

General

Target

6589987TEL.exe
Size

233KB
MD5

9d492198c90933eb067ea7bd158d0597
SHA1

56950f6ba640b4edf603c5bc0f0fa7f460c807d5
SHA256

b4b38d7d62a408e89a3c7c0157405cf65862ddb6a1fb23a931311a468d051890
SHA512

1c511a295e2b6313cc7dc81cdc31a6dd9e1b7a379b67207728fdbfbb5afb977bf03ba10f17428a7a646bce95f7f4c971100aaefbabdd8d7ddba31e44ef4e06c8
SSDEEP

6144:JYa68XJgGIPL8bhiG7FYmjIaf76t+EmV8kPgXjd1qN:JYOJgGIj8TYmsaz6t+Eg8bTdE

Score

10^/10

snakekeylogger collection keylogger persistence spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/812-142-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger
behavioral2/memory/812-143-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger
behavioral2/memory/812-144-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger
behavioral2/memory/812-147-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger

Loads dropped DLL 1 IoCs

pid	Process
4348	6589987TEL.exe

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-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6589987TEL.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6589987TEL.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6589987TEL.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\uenjscxhdmvrb = "C:\\Users\\Admin\\AppData\\Roaming\\swgplueajfo\\xtdmirnwgbktpy.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\6589987TEL.exe\""	6589987TEL.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
1	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4348 set thread context of 812	4348	6589987TEL.exe	82

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
812	6589987TEL.exe
812	6589987TEL.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4348	6589987TEL.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	812	6589987TEL.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 812	4348	6589987TEL.exe	82
PID 4348 wrote to memory of 812	4348	6589987TEL.exe	82
PID 4348 wrote to memory of 812	4348	6589987TEL.exe	82
PID 4348 wrote to memory of 812	4348	6589987TEL.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6589987TEL.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6589987TEL.exe

C:\Users\Admin\AppData\Local\Temp\6589987TEL.exe
"C:\Users\Admin\AppData\Local\Temp\6589987TEL.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4348
- C:\Users\Admin\AppData\Local\Temp\6589987TEL.exe
  "C:\Users\Admin\AppData\Local\Temp\6589987TEL.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsu87D4.tmp\tqtxprbid.dll

Filesize
4KB

MD5
50e221d5d1b092ff65ed797725bb47a3

SHA1
50767ca15666c0cd07212be4e77bd3665c9f9979

SHA256
26139aad78657252eaa78f10182857f59c5dce6b5f98f2829d0478ce7364a8f1

SHA512
a0824c627e108b9117c87ff06cbf04933f21a8e315807209b427118ea1f682c9c02bcda57c795cecc38e296faabb566f27437aa139070a0193b65692da722a83

Download Submit
memory/812-149-0x0000000002580000-0x0000000002590000-memory.dmp

Filesize
64KB

Download
memory/812-150-0x0000000002580000-0x0000000002590000-memory.dmp

Filesize
64KB

Download
memory/812-143-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/812-144-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/812-145-0x0000000004A20000-0x0000000004FC4000-memory.dmp

Filesize
5.6MB

Download
memory/812-146-0x0000000004FD0000-0x000000000506C000-memory.dmp

Filesize
624KB

Download
memory/812-147-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/812-158-0x0000000002580000-0x0000000002590000-memory.dmp

Filesize
64KB

Download
memory/812-142-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/812-151-0x0000000002580000-0x0000000002590000-memory.dmp

Filesize
64KB

Download
memory/812-148-0x0000000002580000-0x0000000002590000-memory.dmp

Filesize
64KB

Download
memory/812-152-0x0000000005900000-0x0000000005AC2000-memory.dmp

Filesize
1.8MB

Download
memory/812-153-0x0000000005AD0000-0x0000000005B62000-memory.dmp

Filesize
584KB

Download
memory/812-154-0x0000000005BB0000-0x0000000005BBA000-memory.dmp

Filesize
40KB

Download
memory/812-156-0x0000000002580000-0x0000000002590000-memory.dmp

Filesize
64KB

Download
memory/812-157-0x0000000002580000-0x0000000002590000-memory.dmp

Filesize
64KB

Download
memory/4348-141-0x0000000003150000-0x0000000003152000-memory.dmp

Filesize
8KB

Download

Analysis

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