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/2792-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2792-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2792-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2792-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2792-25-0x0000000000400000-0x0000000000426000-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
2920	powershell.exe
2480	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\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 1076 set thread context of 2792	1076	quotation.pdf.exe	36

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	powershell.exe
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

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
2808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2480	powershell.exe
2920	powershell.exe
2792	RegSvcs.exe
2792	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	powershell.exe
Token: SeDebugPrivilege	2920	powershell.exe
Token: SeDebugPrivilege	2792	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 2920	1076	quotation.pdf.exe	30
PID 1076 wrote to memory of 2920	1076	quotation.pdf.exe	30
PID 1076 wrote to memory of 2920	1076	quotation.pdf.exe	30
PID 1076 wrote to memory of 2920	1076	quotation.pdf.exe	30
PID 1076 wrote to memory of 2480	1076	quotation.pdf.exe	32
PID 1076 wrote to memory of 2480	1076	quotation.pdf.exe	32
PID 1076 wrote to memory of 2480	1076	quotation.pdf.exe	32
PID 1076 wrote to memory of 2480	1076	quotation.pdf.exe	32
PID 1076 wrote to memory of 2808	1076	quotation.pdf.exe	34
PID 1076 wrote to memory of 2808	1076	quotation.pdf.exe	34
PID 1076 wrote to memory of 2808	1076	quotation.pdf.exe	34
PID 1076 wrote to memory of 2808	1076	quotation.pdf.exe	34
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36
PID 1076 wrote to memory of 2792	1076	quotation.pdf.exe	36

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\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:1076
- 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:2920
- 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:2480
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VBwlAonrdTz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC236.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2808
- 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:2792

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC236.tmp

Filesize
1KB

MD5
73068274418846bd103b48d0a30cec42

SHA1
59c519670fd056de6f6133753e6ef8729095555d

SHA256
cebf6048ff39b70fb809f977ade6eab1b144f6cee680d54da3089d2fd7ed45ea

SHA512
ee73b768f7646e084507656c2ff6f9eb3708c20c23ccc4ad2c38afa3cb9b0d5881241e6231cbddee1b96cb1ca58e82df51f4c64b653da9868d730ee79b909134

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4T62ZXELFF86T17332OC.temp

Filesize
7KB

MD5
f012b810af4d29183969f11c6430ecf9

SHA1
c7a94bb127f4046ca1c46bcc7bfd34b27ff2811e

SHA256
ea92bf00ff5565c2c106fc66cd2d51b3429e4080e19439bbf98e9363a1720fea

SHA512
6bc8c34f73dd4152ae16f94bd36a735e100557ca973cec7c0f3209df63771912ccd1321f325a5a3bab4770acc83e0cb960c36aa5e41968649d7c35247e00b65d

Download Submit
memory/1076-4-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/1076-31-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-0-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/1076-5-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-6-0x0000000004E10000-0x0000000004E78000-memory.dmp

Filesize
416KB

Download
memory/1076-2-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-1-0x0000000000E70000-0x0000000000F08000-memory.dmp

Filesize
608KB

Download
memory/1076-3-0x0000000000440000-0x0000000000450000-memory.dmp

Filesize
64KB

Download
memory/2792-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2792-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2792-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2792-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2792-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2792-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2792-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2792-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads