snakekeylogger | 2df2f95d0b480aa7d2f86ee162298a55d7f24dbdaef2e06664ce992c35a5ab03

General

Target
bank slip.pdf.exe
Size 974KB
Sample221212-sae5msbf26
SHA256 2df2f95d0b480aa7d2f86ee162298a55d7f24dbdaef2e06664ce992c35a5ab03
MD5 ceabc960e9abd4fed9dff3820aba62ca
SHA1 db69a715436bcd3dd06770b9c31ce5d8176d90c0
SHA512 3b57edde3e67a3e70761436f51ccd4a298a221f8e808010857f65d0a3a2b161bf41a18ae013b4dd6a0bb9247e5c763f42d64e098bf7c5959234c44386d8a9c07
SSDEEP 12288:mKGb2iNYC6LUx8F5/36Pm8XwjLCn/g4YNOHc:81KC6LUsFX8gjqaNG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot1644755040:AAGRTnph6BdO8-t1bJaOyVu9aeuJErmisqs/sendMessage?chat_id=1637651323

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/928-140-0x0000000000400000-0x0000000000426000-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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	bank slip.pdf.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-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank slip.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank slip.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank slip.pdf.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
65	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1800 set thread context of 928	1800	bank slip.pdf.exe	100

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
1744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1800	bank slip.pdf.exe
928	bank slip.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	bank slip.pdf.exe
Token: SeDebugPrivilege	928	bank slip.pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 1744	1800	bank slip.pdf.exe	98
PID 1800 wrote to memory of 1744	1800	bank slip.pdf.exe	98
PID 1800 wrote to memory of 1744	1800	bank slip.pdf.exe	98
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100
PID 1800 wrote to memory of 928	1800	bank slip.pdf.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank slip.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank slip.pdf.exe

C:\Users\Admin\AppData\Local\Temp\bank slip.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\bank slip.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RsWyStjZYG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF33E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1744
- C:\Users\Admin\AppData\Local\Temp\bank slip.pdf.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:928

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

bank slip.pdf.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\bank slip.pdf.exe.log
Size 1KB
SHA256 b094cb1ef7da4d1a6ed0b9dc687619033e44b960f4be00652a46fe945398bc09
MD5 568cff9ba1570565b45bf9ef7e636f7f
SHA1 d07d800e4334c2566181d3fcf9d644512a5a992e
SHA512 623e2fc4ba85f3465744dcd3e52cfa9e83009d18d5a8f4239842b2ddd0b0c91cd447072f7844cd9e6f8ef571f38743b22820f5cc741f9e55823d241146f9830b
MD5 SHA1 SHA512

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tmpF33E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF33E.tmp
Size 1KB
SHA256 a8cf2ff2009d551c42b4e7307e4b3d5a3050284067119df7c4080b349a620ae7
MD5 a6de8eaea6f9f83110cc19cf73f1af7f
SHA1 9067e9ffaf7b407ceb3a2d0f9e17de9fecb97737
SHA512 8c41f1f49df0799f8c3c77c4fd3a98b09c8e432aa68cdf6b47f50e8795090bca94389f0a8ab97b7a46836501c556ee4af306f24a6ff93283956345f581b2c538
MD5 SHA1 SHA512

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memory/928-140-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/928-142-0x0000000006A70000-0x0000000006C32000-memory.dmp

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memory/1800-132-0x0000000000690000-0x000000000078A000-memory.dmp

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memory/1800-133-0x0000000005780000-0x0000000005D24000-memory.dmp

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memory/1800-134-0x0000000005110000-0x00000000051A2000-memory.dmp

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memory/1800-135-0x0000000005270000-0x000000000530C000-memory.dmp

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memory/1800-136-0x0000000005200000-0x000000000520A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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