snakekeylogger | 7b066ceeb76489b6ee174bde0247e50f335338d12a68001b483f8dc7fa487cbe

General

Target

quotation.pdf.exe
Size

584KB
MD5

cae995edd90312264f9faa534874894f
SHA1

2a71f016765dc5fa825ca1f437e1df02c32611a0
SHA256

5226c6707f7f1430f49c6c7cd637375b00004be37d815d82804257a8ca563841
SHA512

6bd8c914fbdc8b04bdf12a8a60eb61324e4e06dfdd7525d29418c861247dda366e367992afd4d285a15b8ca71df5d28ddc1056cb91df3d9d1461c888bce8d594
SSDEEP

12288:HrLfSC/W39Rfyyii2nYUNm8AEr8aNZibViwt5XHF:LLbcyyii2nYUm8AErTsiw5V

Score

10^/10

snakekeylogger collection credential_access discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6086388911:AAGHpITQe4oLJhzRR86O2JB3Tmd1xG2gIqM/sendMessage?chat_id=1932526247

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2996-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2996-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2060	powershell.exe
2380	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1292 set thread context of 2996	1292	quotation.pdf.exe	37

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	quotation.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2380	powershell.exe
2060	powershell.exe
2996	RegSvcs.exe
2996	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	powershell.exe
Token: SeDebugPrivilege	2060	powershell.exe
Token: SeDebugPrivilege	2996	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 2060	1292	quotation.pdf.exe	31
PID 1292 wrote to memory of 2060	1292	quotation.pdf.exe	31
PID 1292 wrote to memory of 2060	1292	quotation.pdf.exe	31
PID 1292 wrote to memory of 2060	1292	quotation.pdf.exe	31
PID 1292 wrote to memory of 2380	1292	quotation.pdf.exe	33
PID 1292 wrote to memory of 2380	1292	quotation.pdf.exe	33
PID 1292 wrote to memory of 2380	1292	quotation.pdf.exe	33
PID 1292 wrote to memory of 2380	1292	quotation.pdf.exe	33
PID 1292 wrote to memory of 2676	1292	quotation.pdf.exe	35
PID 1292 wrote to memory of 2676	1292	quotation.pdf.exe	35
PID 1292 wrote to memory of 2676	1292	quotation.pdf.exe	35
PID 1292 wrote to memory of 2676	1292	quotation.pdf.exe	35
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37
PID 1292 wrote to memory of 2996	1292	quotation.pdf.exe	37

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2060
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VBwlAonrdTz.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2380
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VBwlAonrdTz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp81C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2676
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:2996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp81C.tmp

Filesize
1KB

MD5
6f3ba7bb28cecfcda4c23a9b2f6a3fea

SHA1
e53aec7e5f54bb9a490ba4d859638d6fc40278ee

SHA256
93c5dabba0756cf5bcea9758f845f8d094e8e93d3b4f4d363e7c2ab1d38d01d7

SHA512
8876dc0d03fbbb06da6d016de2f0269d7af940dbe25f3e43fb97924a700c02420e1efe1604616072f2d9c87a74e019f1f31628727a5bdc7caba4d01b396f47dd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
a7022c5b69dd58e795eb3cb22bec14f1

SHA1
d6b61462e4dfd8278d75a777b8fafd7cb9f389e3

SHA256
6d6f2e70dd199c1d6f6da142a914968028097b87e02dfe4f71d83bfdd2462076

SHA512
9285adcccd525f5461d50f4b98822065d814666b55a323c869e7c12fe502aecb556e1a43954a313d390737d32bdab784cfefed4b6f533ff6ac0c92a7defa5317

Download Submit
memory/1292-4-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1292-31-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1292-5-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-6-0x0000000005070000-0x00000000050D8000-memory.dmp

Filesize
416KB

Download
memory/1292-2-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-1-0x00000000008D0000-0x0000000000968000-memory.dmp

Filesize
608KB

Download
memory/1292-3-0x0000000000390000-0x00000000003A0000-memory.dmp

Filesize
64KB

Download
memory/2996-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2996-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2996-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads