snakekeylogger | c0972bed1bf730f5247f0ee2db6fe2f15b97217b6cfb42a024dc3aad4ec20341

General

Target

AWBRef339720937705pdf.exe
Size

599KB
MD5

8f430690b8710fa451e213dd0b2ec9ab
SHA1

de4b9701915a96ab28ad39dd5bc13be1941bc095
SHA256

c0972bed1bf730f5247f0ee2db6fe2f15b97217b6cfb42a024dc3aad4ec20341
SHA512

eda0d36ba72eec1b1cb5f95e7e7c676a89338f11cd7f2134fe114ac353447aabf4cc54276795dcd46a668dfadd597d143d2e2749fbb0f8b35d78df11da91aea2
SSDEEP

12288:65SRmHfMaVj/IkS2bNVoOs/Jn+jiA58BrgiIXsh3gViwt5XHUkR:uSRmHfMaG6bNVfe+jp58Bsiysh0iw5j

Score

10^/10

snakekeylogger collection credential_access discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7342466652:AAH0FO5Nw0u2N8HT41ehcQTwKTOCbumkJLg/sendMessage?chat_id=7399860345

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/1672-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1672-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1672-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1672-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1672-23-0x0000000000400000-0x0000000000426000-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
2680	powershell.exe
2588	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\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 2252 set thread context of 1672	2252	AWBRef339720937705pdf.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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AWBRef339720937705pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
1040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1672	RegSvcs.exe
2680	powershell.exe
2588	powershell.exe
1672	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	RegSvcs.exe
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeDebugPrivilege	2588	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2680	2252	AWBRef339720937705pdf.exe	30
PID 2252 wrote to memory of 2680	2252	AWBRef339720937705pdf.exe	30
PID 2252 wrote to memory of 2680	2252	AWBRef339720937705pdf.exe	30
PID 2252 wrote to memory of 2680	2252	AWBRef339720937705pdf.exe	30
PID 2252 wrote to memory of 2588	2252	AWBRef339720937705pdf.exe	32
PID 2252 wrote to memory of 2588	2252	AWBRef339720937705pdf.exe	32
PID 2252 wrote to memory of 2588	2252	AWBRef339720937705pdf.exe	32
PID 2252 wrote to memory of 2588	2252	AWBRef339720937705pdf.exe	32
PID 2252 wrote to memory of 1040	2252	AWBRef339720937705pdf.exe	34
PID 2252 wrote to memory of 1040	2252	AWBRef339720937705pdf.exe	34
PID 2252 wrote to memory of 1040	2252	AWBRef339720937705pdf.exe	34
PID 2252 wrote to memory of 1040	2252	AWBRef339720937705pdf.exe	34
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36
PID 2252 wrote to memory of 1672	2252	AWBRef339720937705pdf.exe	36

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\AWBRef339720937705pdf.exe
"C:\Users\Admin\AppData\Local\Temp\AWBRef339720937705pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- 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\AWBRef339720937705pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2680
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BtEYlavlla.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2588
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BtEYlavlla" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6FC3.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1040
- 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:1672

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\tmp6FC3.tmp

Filesize
1KB

MD5
899c295a192b1d3d57c3309bcf6dd5ac

SHA1
9b2e7d1a5132e3d769e5ff74ff18347fdbc1b982

SHA256
b933f7bd42a121f059a6e22cc78d82342af7f7c936baed8259b07afdbefc8a73

SHA512
e397f059bbce83b8925e75c387f7ddec2162caa8e3d37d4f7927b39bc9a4b79a8188243585e363687c948923483bdafd13a323a948539be45b2321f1c05c41b8

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\BIXA0Y6Q0TGBSB4J5TV1.temp

Filesize
7KB

MD5
6fc4099fd6446d0fe8536b28891833a4

SHA1
bcce38e2d4864107fe6149e956284082534e64e5

SHA256
03800b57e1cdba7ef6b1dc1679e38b636c25d98359327b8636063da6c5d10c13

SHA512
4524a97024072009daab85c41f3dfb1f7e63739c787c4b04ab1050e2ee9083f54eac69ee029ac13bc800b882ca00a306581c74b6930b5764be2b30368742913f

Download Submit
memory/1672-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1672-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1672-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1672-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1672-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1672-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1672-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1672-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2252-6-0x0000000004340000-0x00000000043A8000-memory.dmp

Filesize
416KB

Download
memory/2252-1-0x00000000000F0000-0x0000000000188000-memory.dmp

Filesize
608KB

Download
memory/2252-0-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/2252-2-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2252-3-0x0000000001DD0000-0x0000000001DE0000-memory.dmp

Filesize
64KB

Download
memory/2252-5-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2252-4-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/2252-31-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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