snakekeylogger | f1e1cd828f56e8ebc2fbec269ca886b2d4701ddba9bf6d76ffa318b94e897e6e

General

Target

lightning.exe
Size

839KB
MD5

4f2580154b4ab4d50c523f539728ef98
SHA1

a7c32086d489c6a1218d7b63ca1a2ea39d61c79d
SHA256

f1e1cd828f56e8ebc2fbec269ca886b2d4701ddba9bf6d76ffa318b94e897e6e
SHA512

c7c19d3f28251162590637ccdd126cd12fbf7ffb8535f1d5d5eff05d6c179a24c5887bb7b198a0a73b4e5c223c64fd313d71f57a32d5f06cce23d04f8e19cbc3
SSDEEP

12288:UKysSV41pnri5YqWGRiQTWlTFh/KHY8xixAPf7JB96G:s4bnri5SQTWlD/K4ZxgfdB96G

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5478319803:AAHq9LkDUFBRvjOub4YfRlPURZxM59_BVnc/sendMessage?chat_id=5516439768

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral2/memory/3972-140-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral2/memory/3972-145-0x0000000004FB0000-0x0000000004FC0000-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-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lightning.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lightning.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lightning.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
56	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4316 set thread context of 3972	4316	lightning.exe	92

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3972	lightning.exe
3972	lightning.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3972	lightning.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 3972	4316	lightning.exe	92
PID 4316 wrote to memory of 3972	4316	lightning.exe	92
PID 4316 wrote to memory of 3972	4316	lightning.exe	92
PID 4316 wrote to memory of 3972	4316	lightning.exe	92
PID 4316 wrote to memory of 3972	4316	lightning.exe	92
PID 4316 wrote to memory of 3972	4316	lightning.exe	92
PID 4316 wrote to memory of 3972	4316	lightning.exe	92
PID 4316 wrote to memory of 3972	4316	lightning.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lightning.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lightning.exe

C:\Users\Admin\AppData\Local\Temp\lightning.exe
"C:\Users\Admin\AppData\Local\Temp\lightning.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Users\Admin\AppData\Local\Temp\lightning.exe
  "C:\Users\Admin\AppData\Local\Temp\lightning.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\lightning.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3972-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3972-143-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/3972-144-0x00000000064E0000-0x00000000066A2000-memory.dmp

Filesize
1.8MB

Download
memory/3972-145-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/4316-133-0x00000000006D0000-0x00000000007A8000-memory.dmp

Filesize
864KB

Download
memory/4316-134-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/4316-135-0x0000000005170000-0x0000000005202000-memory.dmp

Filesize
584KB

Download
memory/4316-136-0x0000000005210000-0x000000000521A000-memory.dmp

Filesize
40KB

Download
memory/4316-137-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/4316-138-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/4316-139-0x0000000006AF0000-0x0000000006B8C000-memory.dmp

Filesize
624KB

Download

Analysis

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