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 6 IoCs

resource	yara_rule
behavioral1/memory/560-63-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/560-65-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/560-67-0x00000000004206CE-mapping.dmp	family_snakekeylogger
behavioral1/memory/560-66-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/560-69-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/560-71-0x0000000000400000-0x0000000000426000-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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment Advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1468 set thread context of 560	1468	Payment Advice.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
560	Payment Advice.exe
560	Payment Advice.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	560	Payment Advice.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28
PID 1468 wrote to memory of 560	1468	Payment Advice.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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-1-5-21-3406023954-474543476-3319432036-1000\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:1468
- 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:560

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

Replay Monitor

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Downloads

memory/560-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/560-63-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/560-71-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/560-69-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/560-66-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/560-61-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/560-60-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1468-55-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/1468-54-0x00000000011C0000-0x00000000012A0000-memory.dmp

Filesize
896KB

Download
memory/1468-59-0x0000000000AA0000-0x0000000000AC8000-memory.dmp

Filesize
160KB

Download
memory/1468-58-0x0000000007F00000-0x0000000007F76000-memory.dmp

Filesize
472KB

Download
memory/1468-57-0x0000000000480000-0x000000000048C000-memory.dmp

Filesize
48KB

Download
memory/1468-56-0x0000000000460000-0x0000000000474000-memory.dmp

Filesize
80KB

Download

Analysis

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