snakekeylogger | 4e0576bfe816a475d0a0e38a9c7456f8742d12f0c5a44a2244900214c37ad7e4

General

Target

FINAL BL.pdf.exe
Size

422KB
MD5

9a903c6a1df5616594b6d64f6860fe37
SHA1

fad9c0dcce2c0be8617a016baa1bc8326a6c62f0
SHA256

4e0576bfe816a475d0a0e38a9c7456f8742d12f0c5a44a2244900214c37ad7e4
SHA512

e3b01982cadda9c864a0b68eef6955f632553bd1dc72a0e81191f26d1fd434544c81c02dfc925f856e178de776f3ef58840007fa77fbba9dad7bafbe13b3e419

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot1507062795:AAEBb0H5OYbp-dWwXk8ffQp0InjOhKxhpbU/sendMessage?chat_id=1663822858

Signatures

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

Snake Keylogger Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1320-64-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1320-66-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1320-67-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1320-68-0x000000000042031E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1320-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1320-72-0x0000000000400000-0x0000000000426000-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

Processes:

FINAL BL.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FINAL BL.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FINAL BL.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FINAL BL.pdf.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.

Processes:

flow ioc

3 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

FINAL BL.pdf.exe

description pid process target process

PID 1356 set thread context of 1320 1356 FINAL BL.pdf.exe FINAL BL.pdf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1516 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

FINAL BL.pdf.exeFINAL BL.pdf.exe

pid process

1356 FINAL BL.pdf.exe
1320 FINAL BL.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

FINAL BL.pdf.exeFINAL BL.pdf.exe

description pid process

Token: SeDebugPrivilege 1356 FINAL BL.pdf.exe
Token: SeDebugPrivilege 1320 FINAL BL.pdf.exe

flow	ioc
3	checkip.dyndns.org

description	pid	process	target process
PID 1356 set thread context of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe

pid	process
1516	schtasks.exe

pid	process
1356	FINAL BL.pdf.exe
1320	FINAL BL.pdf.exe

description	pid	process
Token: SeDebugPrivilege	1356	FINAL BL.pdf.exe
Token: SeDebugPrivilege	1320	FINAL BL.pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

FINAL BL.pdf.exe

description	pid	process	target process
PID 1356 wrote to memory of 1516	1356	FINAL BL.pdf.exe	schtasks.exe
PID 1356 wrote to memory of 1516	1356	FINAL BL.pdf.exe	schtasks.exe
PID 1356 wrote to memory of 1516	1356	FINAL BL.pdf.exe	schtasks.exe
PID 1356 wrote to memory of 1516	1356	FINAL BL.pdf.exe	schtasks.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe
PID 1356 wrote to memory of 1320	1356	FINAL BL.pdf.exe	FINAL BL.pdf.exe

outlook_office_path 1 IoCs

Processes:

FINAL BL.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FINAL BL.pdf.exe

outlook_win_path 1 IoCs

Processes:

FINAL BL.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FINAL BL.pdf.exe

C:\Users\Admin\AppData\Local\Temp\FINAL BL.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\FINAL BL.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1356

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SSHnkqdBlPISZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5CC1.tmp"
2⤵
- Creates scheduled task(s)
PID:1516

C:\Users\Admin\AppData\Local\Temp\FINAL BL.pdf.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1320

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5CC1.tmp
Filesize
1KB

MD5
d875c2e9bdeb399fdad91d06e0c09bf7

SHA1
fdd0cef99aa8a1a6b18695a5be1bb646a545dd07

SHA256
a029a243fbf8d441f47ff9e12203d4b381f1d3d3dcc5859a01aaabd11b8a0c60

SHA512
7537c7ef275d336000bdfc71a3fbe488ec9340e00771a1025915062e646aa097865650e5741eadbec1004a1c7be221136084b5188e2ae6a2db609eac10a6f8f5

Download Submit
memory/1320-64-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1320-67-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1320-72-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1320-70-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1320-68-0x000000000042031E-mapping.dmp

Download
memory/1320-66-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1320-61-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1320-62-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1356-54-0x00000000009F0000-0x0000000000A60000-memory.dmp

Filesize
448KB

Download
memory/1356-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/1356-56-0x0000000000980000-0x000000000098A000-memory.dmp

Filesize
40KB

Download
memory/1356-58-0x0000000004C40000-0x0000000004C66000-memory.dmp

Filesize
152KB

Download
memory/1356-57-0x0000000004F20000-0x0000000004F90000-memory.dmp

Filesize
448KB

Download
memory/1516-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads