snakekeylogger | e3605326017c58a3ef50367f4821255161997f87c615c126c981526127392d3e

General

Target

tmp.exe
Size

887KB
MD5

c19b70381457c1bf947f4befc79dc507
SHA1

c290b39b8078e473c6d7eefa8aac2f7a1b7b5376
SHA256

e3605326017c58a3ef50367f4821255161997f87c615c126c981526127392d3e
SHA512

3189ff8c02332ba9f6b85efe12ccf6cce2125b57e8a7cdfe915a892afb344b7e4e0ee91d2fb695083419416bbc4ee7ce48cbcc4f485489fef4a5668804e2f5f1
SSDEEP

12288:6LYK0aO+4fzKM/JNDFmHGoxuBslG0VKhxabmj09JgkbzZnKkAtvxiLATAGn3WtNv:6LYha+zKM/JNB6xpYnzaSjSnKk0

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5915450521:AAHBL9CEnsFid-IQ0sl0oVZia7TI3t-wPPY/sendMessage?chat_id=5061956073

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral2/memory/3692-140-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral2/memory/3692-145-0x0000000005A50000-0x0000000005A60000-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-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.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
38	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 3692	4800	tmp.exe	91

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4800	tmp.exe
4800	tmp.exe
3692	tmp.exe
3692	tmp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	tmp.exe
Token: SeDebugPrivilege	3692	tmp.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 3332	4800	tmp.exe	90
PID 4800 wrote to memory of 3332	4800	tmp.exe	90
PID 4800 wrote to memory of 3332	4800	tmp.exe	90
PID 4800 wrote to memory of 3692	4800	tmp.exe	91
PID 4800 wrote to memory of 3692	4800	tmp.exe	91
PID 4800 wrote to memory of 3692	4800	tmp.exe	91
PID 4800 wrote to memory of 3692	4800	tmp.exe	91
PID 4800 wrote to memory of 3692	4800	tmp.exe	91
PID 4800 wrote to memory of 3692	4800	tmp.exe	91
PID 4800 wrote to memory of 3692	4800	tmp.exe	91
PID 4800 wrote to memory of 3692	4800	tmp.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  PID:3332
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3692

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\tmp.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3692-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3692-143-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/3692-144-0x0000000006C20000-0x0000000006DE2000-memory.dmp

Filesize
1.8MB

Download
memory/3692-145-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/4800-133-0x00000000008D0000-0x00000000009B4000-memory.dmp

Filesize
912KB

Download
memory/4800-134-0x0000000005970000-0x0000000005F14000-memory.dmp

Filesize
5.6MB

Download
memory/4800-135-0x00000000053C0000-0x0000000005452000-memory.dmp

Filesize
584KB

Download
memory/4800-136-0x00000000055F0000-0x0000000005600000-memory.dmp

Filesize
64KB

Download
memory/4800-137-0x0000000005370000-0x000000000537A000-memory.dmp

Filesize
40KB

Download
memory/4800-138-0x00000000055F0000-0x0000000005600000-memory.dmp

Filesize
64KB

Download
memory/4800-139-0x00000000083A0000-0x000000000843C000-memory.dmp

Filesize
624KB

Download

Analysis

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