snakekeylogger | af85b3dd1220a06d400a1790531468769fa3bbe1b45ff71eafa6afecbf4a8381

General

Target

Payment advice.exe
Size

543KB
MD5

2d3010dd8f268b4945777debe66d1adb
SHA1

e13995eb2b8137768980eddb4b329c2059a9ee3e
SHA256

8a54d3c9af3aa73ee06abc101d4c1791adbefdd205a1d576cfcfab423d441c87
SHA512

fd28e6122eed4cd849f6fd8d4830b6d1b98e8ca0cd6e2cb21fd7ffb51435d00fbb0d4bfa882998f022ff898344b366470fa9f1f4a4d232402bfeb0964348f5ad
SSDEEP

12288:Ii66T19VqAJRJSpod7we/MEwMZXzk8XEAzmGiOjKK7iwUUWJcUJr8Mw:IxOlkyfTDZXzLXEJGiOFUUJU98

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7841206174:AAFIFQ-X89iFs47BPCa2qxGTb4X0TxBAjuk/sendMessage?chat_id=5521168189

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/1336-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment advice.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
19	reallyfreegeoip.org
20	reallyfreegeoip.org
17	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 628 set thread context of 1336	628	Payment advice.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment advice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment advice.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1336	Payment advice.exe
1336	Payment advice.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	Payment advice.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 628 wrote to memory of 1336	628	Payment advice.exe	89
PID 628 wrote to memory of 1336	628	Payment advice.exe	89
PID 628 wrote to memory of 1336	628	Payment advice.exe	89
PID 628 wrote to memory of 1336	628	Payment advice.exe	89
PID 628 wrote to memory of 1336	628	Payment advice.exe	89
PID 628 wrote to memory of 1336	628	Payment advice.exe	89
PID 628 wrote to memory of 1336	628	Payment advice.exe	89
PID 628 wrote to memory of 1336	628	Payment advice.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\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-1-5-21-1062200478-553497403-3857448183-1000\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
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:628
- C:\Users\Admin\AppData\Local\Temp\Payment advice.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment advice.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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\Payment advice.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/628-10-0x000000000A730000-0x000000000A7CC000-memory.dmp

Filesize
624KB

Download
memory/628-15-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/628-3-0x0000000005900000-0x0000000005992000-memory.dmp

Filesize
584KB

Download
memory/628-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/628-5-0x0000000005AA0000-0x0000000005AAA000-memory.dmp

Filesize
40KB

Download
memory/628-6-0x0000000006B30000-0x0000000006B40000-memory.dmp

Filesize
64KB

Download
memory/628-7-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/628-8-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/628-2-0x0000000005E10000-0x00000000063B4000-memory.dmp

Filesize
5.6MB

Download
memory/628-9-0x0000000006B80000-0x0000000006BEC000-memory.dmp

Filesize
432KB

Download
memory/628-4-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/628-1-0x0000000000E90000-0x0000000000F1E000-memory.dmp

Filesize
568KB

Download
memory/1336-14-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1336-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1336-16-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1336-17-0x0000000006390000-0x00000000063E0000-memory.dmp

Filesize
320KB

Download
memory/1336-18-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1336-19-0x00000000065B0000-0x0000000006772000-memory.dmp

Filesize
1.8MB

Download
memory/1336-20-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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