snakekeylogger | 7b5951f5bf8b74c9e9f377c59ad305a671735c9f7c6cf9f3def654c5989619ec

General

Target

Profoma Invoice.exe
Size

301KB
MD5

07a7565fcf8ba9b08b5e83e94489e4b1
SHA1

8cee31beae3baabf4c1e71a114a3b2623c798ca8
SHA256

7b5951f5bf8b74c9e9f377c59ad305a671735c9f7c6cf9f3def654c5989619ec
SHA512

3f2e0a04c995d7e0a209fda8ce908b83415244259195ee7fde2acdce9c8a7cb37509503a61e2f46cc6c40db44144b79461960dc670c9d60b474e63f00eea3e9b
SSDEEP

6144:4e9Z6dubKLoGWi3xCeLy4Im5Q1FoFVjOMix6S2:f6dubKLoxeGnRklhTS

Score

10^/10

snakekeylogger collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.wspcranes.com
Port:
995
Username:
[email protected]
Password:
Wel@1come
Email To:
[email protected]

C2

https://api.telegram.org/bot6192832133:AAF7C5Hu2cAny_oozlOAGw_7DWfvYVumEbE/sendMessage?chat_id=2021395706

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4680-143-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Disables Task Manager via registry modification
evasion

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pdf.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pdf.exe	Powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
4680	Profoma Invoice.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-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Profoma Invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Profoma Invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Profoma Invoice.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 5064 set thread context of 4680	5064	Profoma Invoice.exe	83

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1492	Powershell.exe
4680	Profoma Invoice.exe
1492	Powershell.exe
4680	Profoma Invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1492	Powershell.exe
Token: SeDebugPrivilege	4680	Profoma Invoice.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 1492	5064	Profoma Invoice.exe	81
PID 5064 wrote to memory of 1492	5064	Profoma Invoice.exe	81
PID 5064 wrote to memory of 1492	5064	Profoma Invoice.exe	81
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83
PID 5064 wrote to memory of 4680	5064	Profoma Invoice.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Profoma Invoice.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Profoma Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pdf.exe'
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1492
- C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4680

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe

Filesize
301KB

MD5
07a7565fcf8ba9b08b5e83e94489e4b1

SHA1
8cee31beae3baabf4c1e71a114a3b2623c798ca8

SHA256
7b5951f5bf8b74c9e9f377c59ad305a671735c9f7c6cf9f3def654c5989619ec

SHA512
3f2e0a04c995d7e0a209fda8ce908b83415244259195ee7fde2acdce9c8a7cb37509503a61e2f46cc6c40db44144b79461960dc670c9d60b474e63f00eea3e9b

Download Submit
memory/1492-146-0x00000000075E0000-0x0000000007676000-memory.dmp

Filesize
600KB

Download
memory/1492-148-0x0000000006B40000-0x0000000006B62000-memory.dmp

Filesize
136KB

Download
memory/1492-147-0x0000000006AC0000-0x0000000006ADA000-memory.dmp

Filesize
104KB

Download
memory/1492-137-0x0000000002CA0000-0x0000000002CD6000-memory.dmp

Filesize
216KB

Download
memory/1492-138-0x0000000005890000-0x0000000005EB8000-memory.dmp

Filesize
6.2MB

Download
memory/1492-139-0x0000000005730000-0x0000000005752000-memory.dmp

Filesize
136KB

Download
memory/1492-140-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/1492-145-0x0000000005390000-0x00000000053AE000-memory.dmp

Filesize
120KB

Download
memory/1492-141-0x0000000005FB0000-0x0000000006016000-memory.dmp

Filesize
408KB

Download
memory/4680-143-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4680-149-0x0000000006970000-0x0000000006B32000-memory.dmp

Filesize
1.8MB

Download
memory/4680-150-0x00000000066D0000-0x00000000066DA000-memory.dmp

Filesize
40KB

Download
memory/5064-133-0x0000000005260000-0x0000000005804000-memory.dmp

Filesize
5.6MB

Download
memory/5064-134-0x0000000004D50000-0x0000000004DE2000-memory.dmp

Filesize
584KB

Download
memory/5064-132-0x0000000000340000-0x0000000000390000-memory.dmp

Filesize
320KB

Download
memory/5064-135-0x0000000004EF0000-0x0000000004F8C000-memory.dmp

Filesize
624KB

Download

Analysis

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