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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3432-13-0x0000000000400000-0x0000000000424000-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-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

38 checkip.dyndns.org
47 checkip.dyndns.org

flow	ioc
38	checkip.dyndns.org
47	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	pid	process	target process
PID 3616 set thread context of 3432	3616	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

3432 Halkbank_Ekstre_20231018_765435_456754.pdf.exe
3432 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 3432 Halkbank_Ekstre_20231018_765435_456754.pdf.exe

pid	process
3432	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
3432	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	pid	process
Token: SeDebugPrivilege	3432	Halkbank_Ekstre_20231018_765435_456754.pdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Halkbank_Ekstre_20231018_765435_456754.pdf.exe

description	pid	process	target process
PID 3616 wrote to memory of 3432	3616	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3616 wrote to memory of 3432	3616	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3616 wrote to memory of 3432	3616	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3616 wrote to memory of 3432	3616	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3616 wrote to memory of 3432	3616	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3616 wrote to memory of 3432	3616	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3616 wrote to memory of 3432	3616	Halkbank_Ekstre_20231018_765435_456754.pdf.exe	Halkbank_Ekstre_20231018_765435_456754.pdf.exe
PID 3616 wrote to memory of 3432	3616	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-1-5-21-1045988481-1457812719-2617974652-1000\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-1-5-21-1045988481-1457812719-2617974652-1000\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:3616

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:3432

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Halkbank_Ekstre_20231018_765435_456754.pdf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3432-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3432-22-0x00000000064F0000-0x00000000066B2000-memory.dmp

Filesize
1.8MB

Download
memory/3432-21-0x00000000062D0000-0x0000000006320000-memory.dmp

Filesize
320KB

Download
memory/3432-20-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/3432-19-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3432-18-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/3432-16-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3616-5-0x0000000005AD0000-0x0000000005AE0000-memory.dmp

Filesize
64KB

Download
memory/3616-6-0x0000000005910000-0x000000000591A000-memory.dmp

Filesize
40KB

Download
memory/3616-10-0x0000000006AC0000-0x0000000006AD0000-memory.dmp

Filesize
64KB

Download
memory/3616-11-0x0000000006D20000-0x0000000006D82000-memory.dmp

Filesize
392KB

Download
memory/3616-12-0x0000000009B80000-0x0000000009C1C000-memory.dmp

Filesize
624KB

Download
memory/3616-8-0x0000000005AD0000-0x0000000005AE0000-memory.dmp

Filesize
64KB

Download
memory/3616-7-0x00000000084F0000-0x000000000850E000-memory.dmp

Filesize
120KB

Download
memory/3616-9-0x0000000006AB0000-0x0000000006ABC000-memory.dmp

Filesize
48KB

Download
memory/3616-17-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3616-0-0x0000000000DE0000-0x0000000000EBC000-memory.dmp

Filesize
880KB

Download
memory/3616-4-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/3616-3-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3616-2-0x0000000005F00000-0x00000000064A4000-memory.dmp

Filesize
5.6MB

Download
memory/3616-1-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads