snakekeylogger | d305aa9539f2074ac6b663b385cd9e3905dd3f9b1755cf8d9d3b724c3831a16e

General

Target

scan_invoice08022022.exe
Size

987KB
MD5

74b81196baf04c9ca3c20b05c209535a
SHA1

3472af8b7fba4eed2e22d1603ffcdd2c1913f2d5
SHA256

d305aa9539f2074ac6b663b385cd9e3905dd3f9b1755cf8d9d3b724c3831a16e
SHA512

81ede5795f9411f9acc35084c947b06e54d95eec7bd217080c8cd3d82622f3f6e065a630f6115e7c9f82f170bf3755da9812d26acaa9d97d410b082eb0c5ac7a
SSDEEP

24576:IhLuyyepsA0mIBGHmujp66s7l/mpfUp60L:sLuyye2AGQGuYZwps0

Score

10^/10

snakekeylogger collection evasion keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5633295549:AAH9lzzrf8Ep6i2K5UISY92DSUSu9k_w37Y/sendMessage?chat_id=5671926480

Signatures

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

Snake Keylogger payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/700-66-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger
behavioral1/memory/700-68-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger
behavioral1/memory/700-69-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger
behavioral1/memory/700-70-0x00000000004203EE-mapping.dmp	family_snakekeylogger
behavioral1/memory/700-72-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger
behavioral1/memory/700-74-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

scan_invoice08022022.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions scan_invoice08022022.exe
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

scan_invoice08022022.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools scan_invoice08022022.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	scan_invoice08022022.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	scan_invoice08022022.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

scan_invoice08022022.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	scan_invoice08022022.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	scan_invoice08022022.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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.

Processes:

flow ioc

4 checkip.dyndns.org

flow	ioc
4	checkip.dyndns.org

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

scan_invoice08022022.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	scan_invoice08022022.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	scan_invoice08022022.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

scan_invoice08022022.exe

description pid process target process

PID 1964 set thread context of 700 1964 scan_invoice08022022.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exepowershell.exe

pid process

700 MSBuild.exe
1460 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MSBuild.exepowershell.exe

description pid process

Token: SeDebugPrivilege 700 MSBuild.exe
Token: SeDebugPrivilege 1460 powershell.exe

description	pid	process	target process
PID 1964 set thread context of 700	1964	scan_invoice08022022.exe	MSBuild.exe

pid	process
700	MSBuild.exe
1460	powershell.exe

description	pid	process
Token: SeDebugPrivilege	700	MSBuild.exe
Token: SeDebugPrivilege	1460	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

scan_invoice08022022.exe

description	pid	process	target process
PID 1964 wrote to memory of 1460	1964	scan_invoice08022022.exe	powershell.exe
PID 1964 wrote to memory of 1460	1964	scan_invoice08022022.exe	powershell.exe
PID 1964 wrote to memory of 1460	1964	scan_invoice08022022.exe	powershell.exe
PID 1964 wrote to memory of 1460	1964	scan_invoice08022022.exe	powershell.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe
PID 1964 wrote to memory of 700	1964	scan_invoice08022022.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\scan_invoice08022022.exe
"C:\Users\Admin\AppData\Local\Temp\scan_invoice08022022.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1964

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\scan_invoice08022022.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1460

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:700

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/700-69-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/700-68-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/700-64-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/700-66-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/700-63-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/700-74-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/700-72-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/700-70-0x00000000004203EE-mapping.dmp

Download
memory/1460-76-0x000000006E940000-0x000000006EEEB000-memory.dmp

Filesize
5.7MB

Download
memory/1460-60-0x0000000000000000-mapping.dmp

Download
memory/1460-77-0x000000006E940000-0x000000006EEEB000-memory.dmp

Filesize
5.7MB

Download
memory/1964-59-0x0000000007F50000-0x0000000007FF0000-memory.dmp

Filesize
640KB

Download
memory/1964-54-0x0000000001280000-0x000000000137C000-memory.dmp

Filesize
1008KB

Download
memory/1964-57-0x0000000000960000-0x0000000000974000-memory.dmp

Filesize
80KB

Download
memory/1964-56-0x0000000000910000-0x0000000000924000-memory.dmp

Filesize
80KB

Download
memory/1964-62-0x0000000004AB0000-0x0000000004AFE000-memory.dmp

Filesize
312KB

Download
memory/1964-55-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download
memory/1964-58-0x00000000009F0000-0x00000000009FC000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads