snakekeylogger | e2d1f7e5fe7da6323d2b8105d8aabfbcaf21603059a05c263e14cc079b371718

General

Target

RFQ pdf.exe
Size

782KB
MD5

2186990b3fc8fb51de0d235276613505
SHA1

5e8223137622466c1eca35271586dd6824fb5b1c
SHA256

e2d1f7e5fe7da6323d2b8105d8aabfbcaf21603059a05c263e14cc079b371718
SHA512

286be9e8f8d181db4a032f97a8973a482fbbe6a57248a7d9bea616b22c9610a47ab5c084ca38da387a354419da81edca909fcab8e1ab0a99a4654ba148ba7146
SSDEEP

12288:Uw1SnEwn5B2aUNLTo9XUxIcZg47GV8Z9U:6nEwnr2JLT4X+yyGmZ

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5149109129:AAGFSJSlChXwgqfifOahBX2gfNaVHTpF5Mk/sendMessage?chat_id=2014219704

Signatures

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

Snake Keylogger payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3520-139-0x0000000000400000-0x0000000000426000-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:

RFQ pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ 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

47 checkip.dyndns.org

flow	ioc
47	checkip.dyndns.org

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{96921F34-089F-47CA-A474-37EC9FD4F920}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{5839FE85-386B-44E0-AEE9-69D19CE57622}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ pdf.exe

description pid process target process

PID 1544 set thread context of 3520 1544 RFQ pdf.exe RFQ pdf.exe

description	pid	process	target process
PID 1544 set thread context of 3520	1544	RFQ pdf.exe	RFQ pdf.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

RFQ pdf.exe

pid process

3520 RFQ pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RFQ pdf.exe

description pid process

Token: SeDebugPrivilege 3520 RFQ pdf.exe

pid	process
3520	RFQ pdf.exe

description	pid	process
Token: SeDebugPrivilege	3520	RFQ pdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

RFQ pdf.exe

description	pid	process	target process
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe
PID 1544 wrote to memory of 3520	1544	RFQ pdf.exe	RFQ pdf.exe

outlook_office_path 1 IoCs

Processes:

RFQ pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ pdf.exe

outlook_win_path 1 IoCs

Processes:

RFQ pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ pdf.exe

C:\Users\Admin\AppData\Local\Temp\RFQ pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1544

C:\Users\Admin\AppData\Local\Temp\RFQ pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3520

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1544-132-0x0000000000390000-0x000000000045A000-memory.dmp

Filesize
808KB

Download
memory/1544-133-0x0000000005400000-0x00000000059A4000-memory.dmp

Filesize
5.6MB

Download
memory/1544-134-0x0000000004E50000-0x0000000004EE2000-memory.dmp

Filesize
584KB

Download
memory/1544-135-0x0000000004DF0000-0x0000000004DFA000-memory.dmp

Filesize
40KB

Download
memory/1544-136-0x0000000008760000-0x00000000087FC000-memory.dmp

Filesize
624KB

Download
memory/1544-137-0x0000000008970000-0x00000000089D6000-memory.dmp

Filesize
408KB

Download
memory/3520-138-0x0000000000000000-mapping.dmp

Download
memory/3520-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3520-140-0x0000000006190000-0x0000000006352000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads