snakekeylogger | 283a23b5137c06811fc59411e30f85f91c7728528cbdad2afeb93cba0f65b598

General

Target

Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
Size

577KB
MD5

262b52d9590ed5c1810aea72743a52b9
SHA1

1dd3ccec496afccc5da4d2d9614149d56606f050
SHA256

283a23b5137c06811fc59411e30f85f91c7728528cbdad2afeb93cba0f65b598
SHA512

9456a271a35a491c0eefeea4b996908f2df71818198ae31fa2719b2e77e951948a11bbde612d96639b1aa3ebbc10fe2f048e0f9c4d4d7ad0e3a19ae75b3c5cc2
SSDEEP

12288:5ucopox4F9DmF2+R3NXfyKT/T0ysS07jTImEwScLzA:DeZ4hVJ190vTImEDCzA

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2464-10-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2464-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2464-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2464-18-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2464-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2464-20-0x0000000000500000-0x0000000000540000-memory.dmp	family_snakekeylogger
behavioral1/memory/2464-22-0x0000000000500000-0x0000000000540000-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_20231129_532423_6373443.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_532423_6373443.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_20231129_532423_6373443.pdf.exe

description	pid	process	target process
PID 1192 set thread context of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Halkbank_Ekstre_20231129_532423_6373443.pdf.exeHalkbank_Ekstre_20231129_532423_6373443.pdf.exe

pid	process
1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
2464	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
2464	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Halkbank_Ekstre_20231129_532423_6373443.pdf.exeHalkbank_Ekstre_20231129_532423_6373443.pdf.exe

description	pid	process
Token: SeDebugPrivilege	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
Token: SeDebugPrivilege	2464	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

description	pid	process	target process
PID 1192 wrote to memory of 2428	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2428	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2428	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2428	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
PID 1192 wrote to memory of 2464	1192	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

outlook_office_path 1 IoCs

Processes:

Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

outlook_win_path 1 IoCs

Processes:

Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_532423_6373443.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1192

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe"
2⤵
PID:2428

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2464

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/1192-0-0x0000000000A30000-0x0000000000AC6000-memory.dmp

Filesize
600KB

Download
memory/1192-1-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/1192-2-0x0000000004CC0000-0x0000000004D00000-memory.dmp

Filesize
256KB

Download
memory/1192-3-0x0000000000310000-0x0000000000328000-memory.dmp

Filesize
96KB

Download
memory/1192-4-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1192-5-0x0000000000330000-0x000000000033A000-memory.dmp

Filesize
40KB

Download
memory/1192-6-0x0000000005070000-0x00000000050D0000-memory.dmp

Filesize
384KB

Download
memory/1192-16-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2464-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2464-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-19-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2464-20-0x0000000000500000-0x0000000000540000-memory.dmp

Filesize
256KB

Download
memory/2464-21-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2464-22-0x0000000000500000-0x0000000000540000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads