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 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2400-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2400-10-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2400-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2400-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2400-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2400-20-0x00000000002E0000-0x0000000000320000-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-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\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

4 checkip.dyndns.org

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exe

description	pid	process	target process
PID 2212 set thread context of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Halkbank_Ekstre_20231127_093256_734631.pdf.exeHalkbank_Ekstre_20231127_093256_734631.pdf.exe

pid	process
2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
2400	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
2400	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	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
Token: SeDebugPrivilege	2400	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

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-1-5-21-3425689832-2386927309-2650718742-1000\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-1-5-21-3425689832-2386927309-2650718742-1000\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:2212

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:3004

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:3056

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:2400

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/2212-0-0x0000000000220000-0x00000000002DA000-memory.dmp

Filesize
744KB

Download
memory/2212-1-0x0000000074600000-0x0000000074CEE000-memory.dmp

Filesize
6.9MB

Download
memory/2212-2-0x0000000004A70000-0x0000000004AB0000-memory.dmp

Filesize
256KB

Download
memory/2212-3-0x0000000000580000-0x000000000059A000-memory.dmp

Filesize
104KB

Download
memory/2212-4-0x00000000004E0000-0x00000000004E8000-memory.dmp

Filesize
32KB

Download
memory/2212-5-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/2212-6-0x0000000002260000-0x00000000022C0000-memory.dmp

Filesize
384KB

Download
memory/2212-18-0x0000000074600000-0x0000000074CEE000-memory.dmp

Filesize
6.9MB

Download
memory/2400-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2400-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-19-0x0000000074600000-0x0000000074CEE000-memory.dmp

Filesize
6.9MB

Download
memory/2400-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2400-20-0x00000000002E0000-0x0000000000320000-memory.dmp

Filesize
256KB

Download
memory/2400-21-0x0000000074600000-0x0000000074CEE000-memory.dmp

Filesize
6.9MB

Download
memory/2400-22-0x00000000002E0000-0x0000000000320000-memory.dmp

Filesize
256KB

Download

description	pid	process	target process
PID 2212 wrote to memory of 3004	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 3004	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 3004	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 3004	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 3056	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 3056	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 3056	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 3056	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe
PID 2212 wrote to memory of 2400	2212	Halkbank_Ekstre_20231127_093256_734631.pdf.exe	Halkbank_Ekstre_20231127_093256_734631.pdf.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads