snakekeylogger | 3087ad6676cc9169389d5dcbe9328099c9fb386a8e2c0ebaf2eae4c92924e692

General

Target

Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
Size

578KB
MD5

e774b25a7a8751c5725ed2ba1dede243
SHA1

71e7a04a9d9448d2da4c353642829edcc8fdcb67
SHA256

3087ad6676cc9169389d5dcbe9328099c9fb386a8e2c0ebaf2eae4c92924e692
SHA512

8d825a39760d2792b2b0a0403f781963167642e936e4b857c2c34144fe8c16b4b6fd7abb0c83c89999af5652c73151d39b9c45327fb75ffde866dc0f41aa5908
SSDEEP

12288:Tjqcopox437NBg4OChLjFg/r8tn2FLXNFT3xOg8cqWdE:Ze3Hg43hLBio2FLXNB3xOgQoE

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/212-11-0x0000000000400000-0x0000000000426000-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_20231129_434343_4432123.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_434343_4432123.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

35 checkip.dyndns.org

flow	ioc
35	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

description	pid	process	target process
PID 676 set thread context of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Halkbank_Ekstre_20231129_434343_4432123.pdf.exeHalkbank_Ekstre_20231129_434343_4432123.pdf.exe

pid	process
676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
212	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
212	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Halkbank_Ekstre_20231129_434343_4432123.pdf.exeHalkbank_Ekstre_20231129_434343_4432123.pdf.exe

description	pid	process
Token: SeDebugPrivilege	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
Token: SeDebugPrivilege	212	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

description	pid	process	target process
PID 676 wrote to memory of 4080	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 4080	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 4080	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
PID 676 wrote to memory of 212	676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

outlook_office_path 1 IoCs

Processes:

Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

outlook_win_path 1 IoCs

Processes:

Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank_Ekstre_20231129_434343_4432123.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_434343_4432123.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:676

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_434343_4432123.pdf.exe"
2⤵
PID:4080

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_434343_4432123.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_434343_4432123.pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:212

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_20231129_434343_4432123.pdf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/212-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/212-19-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/212-18-0x0000000006B00000-0x0000000006CC2000-memory.dmp

Filesize
1.8MB

Download
memory/212-17-0x00000000068E0000-0x0000000006930000-memory.dmp

Filesize
320KB

Download
memory/212-16-0x0000000001A00000-0x0000000001A10000-memory.dmp

Filesize
64KB

Download
memory/212-15-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/676-4-0x00000000055A0000-0x00000000055B0000-memory.dmp

Filesize
64KB

Download
memory/676-8-0x00000000057E0000-0x00000000057EA000-memory.dmp

Filesize
40KB

Download
memory/676-9-0x0000000006910000-0x0000000006970000-memory.dmp

Filesize
384KB

Download
memory/676-10-0x000000000F5F0000-0x000000000F68C000-memory.dmp

Filesize
624KB

Download
memory/676-7-0x00000000057C0000-0x00000000057C6000-memory.dmp

Filesize
24KB

Download
memory/676-6-0x0000000005760000-0x0000000005778000-memory.dmp

Filesize
96KB

Download
memory/676-14-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/676-5-0x0000000005540000-0x000000000554A000-memory.dmp

Filesize
40KB

Download
memory/676-0-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/676-3-0x0000000005470000-0x0000000005502000-memory.dmp

Filesize
584KB

Download
memory/676-2-0x0000000005930000-0x0000000005ED4000-memory.dmp

Filesize
5.6MB

Download
memory/676-1-0x0000000000A30000-0x0000000000AC6000-memory.dmp

Filesize
600KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads