snakekeylogger | 25006bde4f75e9b1ed6c5b65b71cf96ded1464f377b03c3d235af285080f875f

General

Target

Halkbank_Ekstre_20231018_765435_456754.pdf.exe
Size

854KB
MD5

568d54be64781494b448e7a9a74fe83d
SHA1

8b77db27fb92e6f7baad9a197207c10e749465ce
SHA256

25006bde4f75e9b1ed6c5b65b71cf96ded1464f377b03c3d235af285080f875f
SHA512

c0b9db9025bb76d0caa84bbabd1ea06d20ec0fa24487342a345134980a1300828c679f6dd480c91448b9b911de9f1518d8cddbb0d3122d800a8df47914b166e1
SSDEEP

12288:4mMXig57JhjhRahGMgvz0Krts1gjGfTQU1Am7l/:Vg57vT+xgvzzsKmQUfh

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot1513074805:AAE9QtTNfInovOlDzP4PcE-Ro12KxYiz9Z4/sendMessage?chat_id=1673719962

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/2684-11-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2684-12-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2684-15-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2684-18-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2684-20-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2684-22-0x0000000004940000-0x0000000004980000-memory.dmp	family_snakekeylogger

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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.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

4 checkip.dyndns.org

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	pid	process	target process
PID 3008 set thread context of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

pid process

2684 Halkbank_Ekstre_20231018_765435_456754.pdf.exe
2684 Halkbank_Ekstre_20231018_765435_456754.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description pid process

Token: SeDebugPrivilege 2684 Halkbank_Ekstre_20231018_765435_456754.pdf.exe

pid	process
2684	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
2684	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	pid	process
Token: SeDebugPrivilege	2684	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	pid	process	target process
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3008 wrote to memory of 2684	3008	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

outlook_office_path 1 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

outlook_win_path 1 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231018_765435_456754.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231018_765435_456754.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3008

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231018_765435_456754.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231018_765435_456754.pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2684-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2684-24-0x0000000004940000-0x0000000004980000-memory.dmp

Filesize
256KB

Download
memory/2684-23-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2684-22-0x0000000004940000-0x0000000004980000-memory.dmp

Filesize
256KB

Download
memory/2684-21-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2684-20-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2684-18-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2684-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2684-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2684-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2684-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3008-5-0x0000000004740000-0x0000000004780000-memory.dmp

Filesize
256KB

Download
memory/3008-8-0x0000000004E30000-0x0000000004E92000-memory.dmp

Filesize
392KB

Download
memory/3008-7-0x0000000000620000-0x0000000000630000-memory.dmp

Filesize
64KB

Download
memory/3008-17-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-6-0x0000000000610000-0x000000000061C000-memory.dmp

Filesize
48KB

Download
memory/3008-1-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-4-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-3-0x00000000005F0000-0x000000000060E000-memory.dmp

Filesize
120KB

Download
memory/3008-2-0x0000000004740000-0x0000000004780000-memory.dmp

Filesize
256KB

Download
memory/3008-0-0x00000000008B0000-0x000000000098C000-memory.dmp

Filesize
880KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads