snakekeylogger | 275a5d67eb4e4f78c290a259d63cca1f0b9ea0a13abb0ff8b5eb36160f941a79

General

Target
Draft Documents.exe
Size 915KB
Sample221101-spk97sdaa3
SHA256 275a5d67eb4e4f78c290a259d63cca1f0b9ea0a13abb0ff8b5eb36160f941a79
MD5 4e0b1c1f44001667536804fc2ac0b8ef
SHA1 b0c5ab705a65da133357f47327de6cbbcf4021ec
SHA512 c054dc70de67885a137b2953eaddf29f6fe7a493abd4f293c3b3d65d6a4351aca4c34e30eb521184885968d86cd278853831ff98b35e2ea94f058e4ce1859963
SSDEEP 12288:EfyqcAgHtDg5xE1W6Nah5NRFFsXNo4f9ke9IRxt8ZsOEWDiiF66UNyo7dOfeia79:iyqI4tKw5nFgi4tAxmPlFANldOGr7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot1507062795:AAEBb0H5OYbp-dWwXk8ffQp0InjOhKxhpbU/sendMessage?chat_id=1663822858

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/2340-141-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	Draft Documents.exe

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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Draft Documents.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Draft Documents.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Draft Documents.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
32	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1408 set thread context of 2340	1408	Draft Documents.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1408	Draft Documents.exe
1408	Draft Documents.exe
1408	Draft Documents.exe
2340	Draft Documents.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1408	Draft Documents.exe
Token: SeDebugPrivilege	2340	Draft Documents.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 1760	1408	Draft Documents.exe	89
PID 1408 wrote to memory of 1760	1408	Draft Documents.exe	89
PID 1408 wrote to memory of 1760	1408	Draft Documents.exe	89
PID 1408 wrote to memory of 3992	1408	Draft Documents.exe	91
PID 1408 wrote to memory of 3992	1408	Draft Documents.exe	91
PID 1408 wrote to memory of 3992	1408	Draft Documents.exe	91
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92
PID 1408 wrote to memory of 2340	1408	Draft Documents.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Draft Documents.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Draft Documents.exe

C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe
"C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nbKgiEPdzGD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7F52.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1760
- C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe
  "{path}"
  2⤵
  PID:3992
- C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2340

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

Draft Documents.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Draft Documents.exe.log
Size 1KB
SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
MD5 84e77a587d94307c0ac1357eb4d3d46f
SHA1 83cc900f9401f43d181207d64c5adba7a85edc1e
SHA512 aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
MD5 SHA1 SHA512

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tmp7F52.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp7F52.tmp
Size 1KB
SHA256 1ec04177e66951d07a1b9383dd2b9f5b1caf6882ff977b848c1b21bc81b3ed07
MD5 e244e1489e3eacaebd8c8394062ebf50
SHA1 048d3492b14fb976f7491773406ee91369a804a0
SHA512 3a839aedab8218ca022c5888021179b02dce7f7bb6f46f65bff957ec7ecebcf8d2dc9b4c0eadb95070d6c5f36f8c734756434ccac23cc67e06c8f0077d28bd33
MD5 SHA1 SHA512

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memory/1408-132-0x0000000000C10000-0x0000000000CFA000-memory.dmp

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memory/1408-133-0x0000000005D50000-0x00000000062F4000-memory.dmp

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memory/1408-134-0x00000000056F0000-0x0000000005782000-memory.dmp

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memory/1408-135-0x00000000057A0000-0x000000000583C000-memory.dmp

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memory/1408-136-0x0000000005680000-0x000000000568A000-memory.dmp

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memory/2340-141-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2340-143-0x0000000006550000-0x0000000006712000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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