snakekeylogger | 1252485e3acb973a1f93ec7881af10d0c8429c540f3a603df73d446b8dc5f19d

General

Target

Halkbank_Ekstre_20231127_093256_734631.pdf.exe
Size

719KB
MD5

1fd9b5970fe58960b6e8281f85bf3442
SHA1

55fcb090bf4e9df3d09d0ac32389aa66ffddb971
SHA256

1252485e3acb973a1f93ec7881af10d0c8429c540f3a603df73d446b8dc5f19d
SHA512

2ebb280c5a353ff9c9984d0f7232910359c01813add76f19e586e7fb1427a1488c07786bdd1824c0ed1fdae44a90080ae0e7e3720a6672eb677bf592e44eed21
SSDEEP

12288:8ti1KYlsZbjzAliCK44/ZxEdQv+DZbOgZByxt0IQOuaFv2GI195d7BR6wTtE6jD6:8M4bjsACK/ZxOVOgzyxtfQ5aAGYfpBhJ

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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2764-12-0x0000000000400000-0x0000000000426000-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_20231127_093256_734631.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231127_093256_734631.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

22 checkip.dyndns.org

flow	ioc
22	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exe

description	pid	process	target process
PID 1120 set thread context of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exeHalkbank_Ekstre_20231127_093256_734631.pdf.exe

pid	process
1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
2764	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
2764	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exeHalkbank_Ekstre_20231127_093256_734631.pdf.exe

description	pid	process
Token: SeDebugPrivilege	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
Token: SeDebugPrivilege	2764	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exe

description	pid	process	target process
PID 1120 wrote to memory of 1484	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 1484	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 1484	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2232	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2232	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2232	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 1120 wrote to memory of 2764	1120	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

outlook_office_path 1 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

outlook_win_path 1 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1120

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe"
2⤵
PID:1484

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe"
2⤵
PID:2232

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734631.pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2764

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_20231127_093256_734631.pdf.exe.log

Filesize
1KB

MD5
b7b9acb869ccc7f7ecb5304ec0384dee

SHA1
6a90751c95817903ee833d59a0abbef425a613b3

SHA256
8cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4

SHA512
7bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764

Download Submit
memory/1120-10-0x000000000BBC0000-0x000000000BC20000-memory.dmp

Filesize
384KB

Download
memory/1120-15-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1120-9-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/1120-4-0x0000000004BF0000-0x0000000004F44000-memory.dmp

Filesize
3.3MB

Download
memory/1120-5-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Filesize
64KB

Download
memory/1120-6-0x00000000050B0000-0x00000000050BA000-memory.dmp

Filesize
40KB

Download
memory/1120-7-0x0000000005840000-0x000000000585A000-memory.dmp

Filesize
104KB

Download
memory/1120-8-0x0000000005860000-0x0000000005868000-memory.dmp

Filesize
32KB

Download
memory/1120-3-0x0000000004A70000-0x0000000004B02000-memory.dmp

Filesize
584KB

Download
memory/1120-2-0x00000000050E0000-0x0000000005684000-memory.dmp

Filesize
5.6MB

Download
memory/1120-0-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1120-11-0x000000000F270000-0x000000000F30C000-memory.dmp

Filesize
624KB

Download
memory/1120-1-0x0000000000020000-0x00000000000DA000-memory.dmp

Filesize
744KB

Download
memory/2764-20-0x0000000006700000-0x00000000068C2000-memory.dmp

Filesize
1.8MB

Download
memory/2764-16-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2764-17-0x0000000005280000-0x0000000005290000-memory.dmp

Filesize
64KB

Download
memory/2764-18-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/2764-19-0x00000000064E0000-0x0000000006530000-memory.dmp

Filesize
320KB

Download
memory/2764-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads