snakekeylogger | 103defe5089465f983ce4e96852a172e6f3e3ae5edac58d366df916f0a189cb7

General

Target

No. NS2ANNA REV1.xlsx.exe
Size

662KB
MD5

6c60453fe8d8d14510d88a2aa9deb625
SHA1

afeb0c67c08e425c2786be2a86d1039dcabc227a
SHA256

103defe5089465f983ce4e96852a172e6f3e3ae5edac58d366df916f0a189cb7
SHA512

00cf6b6bcc3107775f2d1477b97079023302665d72696fa1e97e1564c95e42031b8e6e3d81c3d69b8aa652fa9eb5a93680cdec9a6fc3f4e8a1665975f08bc1c3
SSDEEP

12288:BSAMTihh6xhZ6Or4zMjh3cIXlnYF1X5x1IOQakJxn4Wk3gmP75HPuP:bMUgh8y4wjhAF5ucx1gmP7pG

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5818680343:AAGVJsfIHcopySiifMCdAaFCv-ICp2_Yo_M/sendMessage?chat_id=5765702254

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral2/memory/1312-139-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral2/memory/1312-145-0x0000000005620000-0x0000000005630000-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-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	No. NS2ANNA REV1.xlsx.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	No. NS2ANNA REV1.xlsx.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	No. NS2ANNA REV1.xlsx.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
53	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2120 set thread context of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1312	No. NS2ANNA REV1.xlsx.exe
1312	No. NS2ANNA REV1.xlsx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1312	No. NS2ANNA REV1.xlsx.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92
PID 2120 wrote to memory of 1312	2120	No. NS2ANNA REV1.xlsx.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	No. NS2ANNA REV1.xlsx.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	No. NS2ANNA REV1.xlsx.exe

C:\Users\Admin\AppData\Local\Temp\No. NS2ANNA REV1.xlsx.exe
"C:\Users\Admin\AppData\Local\Temp\No. NS2ANNA REV1.xlsx.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\No. NS2ANNA REV1.xlsx.exe
  "C:\Users\Admin\AppData\Local\Temp\No. NS2ANNA REV1.xlsx.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1312

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\No. NS2ANNA REV1.xlsx.exe.log

Filesize
1KB

MD5
36049bae97bba745c793444373453cb0

SHA1
eb6e9a822944e8e207abba1a5e53f0183a1684f1

SHA256
839fa1f9725719938ffa24533587b168bae2768f23ac09dccb3ad4ab8ae6abcd

SHA512
a6584b7b435afeffb6becfbed82517087030eb23534fa50deecd02330bf36d633ba22e979e36b9c27e35885f9cc1cc9481dadc53cc265be61391e11a7c2c7cdb

Download Submit
memory/1312-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1312-142-0x0000000005620000-0x0000000005630000-memory.dmp

Filesize
64KB

Download
memory/1312-143-0x0000000006A60000-0x0000000006C22000-memory.dmp

Filesize
1.8MB

Download
memory/1312-144-0x0000000006A20000-0x0000000006A2A000-memory.dmp

Filesize
40KB

Download
memory/1312-145-0x0000000005620000-0x0000000005630000-memory.dmp

Filesize
64KB

Download
memory/2120-133-0x0000000000380000-0x000000000042A000-memory.dmp

Filesize
680KB

Download
memory/2120-134-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/2120-135-0x0000000005450000-0x00000000059F4000-memory.dmp

Filesize
5.6MB

Download
memory/2120-136-0x0000000004F80000-0x0000000005012000-memory.dmp

Filesize
584KB

Download
memory/2120-137-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/2120-138-0x00000000069C0000-0x0000000006A5C000-memory.dmp

Filesize
624KB

Download

Analysis

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