snakekeylogger | 320e2a1e5cd7741bcec4c8f6d37527ea1905844247b1419e201104d8dd6e0fc5

General

Target

PO-500741.exe
Size

990KB
MD5

d2b6495aaed7ba9e21661e9246cc9382
SHA1

5195b6fad939a73aa3bf5169a57104e773ffe743
SHA256

320e2a1e5cd7741bcec4c8f6d37527ea1905844247b1419e201104d8dd6e0fc5
SHA512

72b00dc16631e12213e86e046911155d55823b8f27207d77adfdc6a5f2bc8ab216eeeb319a083bfc6ef3d6c9289b368eade69257b9cd59cedaa5a7ba76d8966e
SSDEEP

12288:/CnbIYazKJ2Ltj4YpY6EY8osxJ9mgDP5xugrFWRkgf45lFZJ6gcmK8JGRTw:/CHizL54gY6EKiXx/FTjFZsd+JT

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5310184099:AAGxqu0IL8tjOF6Eq6x2u0gfcHhvuxRwfLU/sendMessage?chat_id=5350445922

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/3748-140-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-500741.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-500741.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-500741.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.

flow	ioc
62	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 544 set thread context of 3748	544	PO-500741.exe	100

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3748	PO-500741.exe
3748	PO-500741.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3748	PO-500741.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 3748	544	PO-500741.exe	100
PID 544 wrote to memory of 3748	544	PO-500741.exe	100
PID 544 wrote to memory of 3748	544	PO-500741.exe	100
PID 544 wrote to memory of 3748	544	PO-500741.exe	100
PID 544 wrote to memory of 3748	544	PO-500741.exe	100
PID 544 wrote to memory of 3748	544	PO-500741.exe	100
PID 544 wrote to memory of 3748	544	PO-500741.exe	100
PID 544 wrote to memory of 3748	544	PO-500741.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-500741.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-500741.exe

C:\Users\Admin\AppData\Local\Temp\PO-500741.exe
"C:\Users\Admin\AppData\Local\Temp\PO-500741.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:544
- C:\Users\Admin\AppData\Local\Temp\PO-500741.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-500741.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

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\PO-500741.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/544-133-0x0000000000830000-0x000000000092E000-memory.dmp

Filesize
1016KB

Download
memory/544-134-0x0000000005840000-0x0000000005DE4000-memory.dmp

Filesize
5.6MB

Download
memory/544-135-0x0000000005330000-0x00000000053C2000-memory.dmp

Filesize
584KB

Download
memory/544-136-0x00000000052F0000-0x00000000052FA000-memory.dmp

Filesize
40KB

Download
memory/544-137-0x00000000055C0000-0x00000000055D0000-memory.dmp

Filesize
64KB

Download
memory/544-138-0x00000000055C0000-0x00000000055D0000-memory.dmp

Filesize
64KB

Download
memory/544-139-0x0000000006BC0000-0x0000000006C5C000-memory.dmp

Filesize
624KB

Download
memory/3748-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3748-143-0x0000000005240000-0x0000000005250000-memory.dmp

Filesize
64KB

Download
memory/3748-144-0x00000000065F0000-0x00000000067B2000-memory.dmp

Filesize
1.8MB

Download
memory/3748-145-0x0000000005240000-0x0000000005250000-memory.dmp

Filesize
64KB

Download

Analysis

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