snakekeylogger | 3b33ec65f67fa0d16d24cecc78ed7fb7922ca1b952648846cc87c4b5b7682eaf

General

Target

Payment Advice.exe
Size

867KB
MD5

7385b9a6b159a04d4a4d29c469abca7d
SHA1

ab591b6d039f81648057ceffde88a1a07eaab82e
SHA256

3b33ec65f67fa0d16d24cecc78ed7fb7922ca1b952648846cc87c4b5b7682eaf
SHA512

b1ab958da83a2d3862661126c106e4430ecc42c4e932d7e7a22a83730b016ce50f1109ff379ec41e69cafac9fc9a7649b3759cd4e7f0f639d146e0862a5d4f2f
SSDEEP

24576:jpD8iV2K1ntJQSY12+Vu2KcIl7OD3stPHM:d8UThtZC/w2JKyD8Z

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6262247910:AAE4jpGXApuGyNo9i5Gac5UwUxrCbw4HXyY/sendMessage?chat_id=5962295104

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/2680-138-0x0000000000400000-0x0000000000426000-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-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Advice.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
59	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4180 set thread context of 2680	4180	Payment Advice.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2680	Payment Advice.exe
2680	Payment Advice.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	Payment Advice.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91
PID 4180 wrote to memory of 2680	4180	Payment Advice.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Advice.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Advice.exe

C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2680

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\Payment Advice.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/2680-137-0x0000000000000000-mapping.dmp

Download
memory/2680-138-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2680-140-0x0000000006B90000-0x0000000006D52000-memory.dmp

Filesize
1.8MB

Download
memory/4180-132-0x0000000000D20000-0x0000000000E00000-memory.dmp

Filesize
896KB

Download
memory/4180-133-0x0000000005D30000-0x00000000062D4000-memory.dmp

Filesize
5.6MB

Download
memory/4180-134-0x0000000005820000-0x00000000058B2000-memory.dmp

Filesize
584KB

Download
memory/4180-135-0x00000000057B0000-0x00000000057BA000-memory.dmp

Filesize
40KB

Download
memory/4180-136-0x00000000092F0000-0x000000000938C000-memory.dmp

Filesize
624KB

Download

Analysis

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