snakekeylogger | c2cea2c500b0bf93e0af89d6cf07f46586b44d86613d331c0079c1eef108674e

Analysis

max time kernel
122s
max time network
137s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
27-06-2024 01:36

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General

Target

new contract.exe
Size

521KB
MD5

a62161fb37a0da7fbfb3913ce4aecb2c
SHA1

2d994e85cf444c5b784d55a52c676b9773b27758
SHA256

f2101696ff6fb8e2171fe666df358500c675246fcbdf4620fe2961be8e5fb316
SHA512

bc08e560c8cc81c3cce3e2f33d3991e87fc27e4e5473fdb149698cad34a9c7dfbb47e75fdce2e263a0385368090e8a99eeec61a9666f1058b91ba802c966da4c
SSDEEP

12288:c5kndm17d93IfLZS9oOarFK+Wbi1vk6i:HngZ7IfLZSR3/bGs6i

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
webmail.valleycountysar.org
Port:
465
Username:
[email protected]
Password:
DKw(r0%wpbd]

https://api.telegram.org/bot6812788177:AAHJ7__ozL0XtBMeO1hcjgFB8ECV3bh5yjg/sendMessage?chat_id=5007084465

Signatures

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

Snake Keylogger payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2932-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-8-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2932-11-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2932-15-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2932-13-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2932-8-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2932-7-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2932-11-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2932-15-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2932-13-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2932-8-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2932-7-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables with potential process hoocking 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2932-11-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2932-15-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2932-13-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2932-8-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2932-7-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook

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:

new contract.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new contract.exe
Key opened	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new contract.exe
Key opened	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new contract.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

new contract.exe

description pid process target process

PID 2420 set thread context of 2932 2420 new contract.exe new contract.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

new contract.exe

pid process

2932 new contract.exe
2932 new contract.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

new contract.exe

description pid process

Token: SeDebugPrivilege 2932 new contract.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 2420 set thread context of 2932	2420	new contract.exe	new contract.exe

pid	process
2932	new contract.exe
2932	new contract.exe

description	pid	process
Token: SeDebugPrivilege	2932	new contract.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

new contract.exe

description	pid	process	target process
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe
PID 2420 wrote to memory of 2932	2420	new contract.exe	new contract.exe

outlook_office_path 1 IoCs

Processes:

new contract.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 new contract.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new contract.exe

outlook_win_path 1 IoCs

Processes:

new contract.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new contract.exe

C:\Users\Admin\AppData\Local\Temp\new contract.exe
"C:\Users\Admin\AppData\Local\Temp\new contract.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2420

C:\Users\Admin\AppData\Local\Temp\new contract.exe
"C:\Users\Admin\AppData\Local\Temp\new contract.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2932

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2420-0-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/2420-1-0x00000000012E0000-0x0000000001368000-memory.dmp

Filesize
544KB

Download
memory/2420-2-0x0000000000B40000-0x0000000000B94000-memory.dmp

Filesize
336KB

Download
memory/2420-3-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-4-0x0000000000560000-0x0000000000568000-memory.dmp

Filesize
32KB

Download
memory/2420-18-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2932-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-16-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2932-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-17-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2932-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-19-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2932-20-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download