snakekeylogger | fac3d893e2a1e4bb7bca111e12f5bc52f8fbde33d8dc16163ebc79253b19829a

General

Target

BRUwtN9nZSBhYk3.exe
Size

725KB
MD5

55762c06fdd519ca1d9a090adad5cc0f
SHA1

4bd9464fb9cbc638c4aae5424c6b7b25120d283a
SHA256

fac3d893e2a1e4bb7bca111e12f5bc52f8fbde33d8dc16163ebc79253b19829a
SHA512

4579511f855b017056b4b7dd230dc9d30a229d5c217e78bb6c91cfa23a07d1eb821a7e3fce13c54b45883e6238a40e9cc238eca8edc9f9319da63bb823a325ab
SSDEEP

12288:9bkcdXHwni4IyS+6a/cSGDxX1TtpWoYibHiQr81BOGzP/ox6fxMrnQqD53sOY:9bJNwL6ecLDxlqKc5noxtrnQsBsP

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5801425382:AAG5b4PUEaqNDv5uP9ejZGeIHeuzzOD4IHY/sendMessage?chat_id=5812329204

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4564-140-0x0000000000400000-0x0000000000426000-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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BRUwtN9nZSBhYk3.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BRUwtN9nZSBhYk3.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BRUwtN9nZSBhYk3.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
25	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 456 set thread context of 4564	456	BRUwtN9nZSBhYk3.exe	88

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
456	BRUwtN9nZSBhYk3.exe
456	BRUwtN9nZSBhYk3.exe
456	BRUwtN9nZSBhYk3.exe
456	BRUwtN9nZSBhYk3.exe
4564	BRUwtN9nZSBhYk3.exe
4564	BRUwtN9nZSBhYk3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	456	BRUwtN9nZSBhYk3.exe
Token: SeDebugPrivilege	4564	BRUwtN9nZSBhYk3.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 456 wrote to memory of 4200	456	BRUwtN9nZSBhYk3.exe	86
PID 456 wrote to memory of 4200	456	BRUwtN9nZSBhYk3.exe	86
PID 456 wrote to memory of 4200	456	BRUwtN9nZSBhYk3.exe	86
PID 456 wrote to memory of 4796	456	BRUwtN9nZSBhYk3.exe	87
PID 456 wrote to memory of 4796	456	BRUwtN9nZSBhYk3.exe	87
PID 456 wrote to memory of 4796	456	BRUwtN9nZSBhYk3.exe	87
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88
PID 456 wrote to memory of 4564	456	BRUwtN9nZSBhYk3.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BRUwtN9nZSBhYk3.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BRUwtN9nZSBhYk3.exe

C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe
"C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:456
- C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe
  "C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe"
  2⤵
  PID:4200
- C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe
  "C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe"
  2⤵
  PID:4796
- C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe
  "C:\Users\Admin\AppData\Local\Temp\BRUwtN9nZSBhYk3.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4564

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\BRUwtN9nZSBhYk3.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/456-133-0x00000000004B0000-0x000000000056C000-memory.dmp

Filesize
752KB

Download
memory/456-134-0x0000000005510000-0x0000000005AB4000-memory.dmp

Filesize
5.6MB

Download
memory/456-135-0x0000000004F60000-0x0000000004FF2000-memory.dmp

Filesize
584KB

Download
memory/456-136-0x0000000004F20000-0x0000000004F2A000-memory.dmp

Filesize
40KB

Download
memory/456-137-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/456-138-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/456-139-0x00000000082C0000-0x000000000835C000-memory.dmp

Filesize
624KB

Download
memory/4564-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4564-143-0x0000000005100000-0x0000000005110000-memory.dmp

Filesize
64KB

Download
memory/4564-144-0x00000000061F0000-0x00000000063B2000-memory.dmp

Filesize
1.8MB

Download
memory/4564-145-0x0000000005100000-0x0000000005110000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing