snakekeylogger | ea7576fd3d76d2e4cd771d7fd7bfd33bbc91645bf176b2d3381c811cd6658e71

Analysis

max time kernel
119s
max time network
144s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 12:35

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General

Target
Contract.exe
Size 584KB
Sample240821-psbndsydpc
SHA256 ea7576fd3d76d2e4cd771d7fd7bfd33bbc91645bf176b2d3381c811cd6658e71
MD5 0cbae9aa90b3c0d11ac1f3963ddbaa07
SHA1 ac1780fbe475ca212fbf4f45d01d4c0be814a72d
SHA512 8a40fb61736c03c83839a8a0ad914c3582668659f7e7c704ddc866837829f5a372ca5035e792295bf290ff9f305be4fda5185351689df2013a7e3395c0ee7c7a
SSDEEP 12288:JWGpoL3rlW4spzjUl/fUCGRwPDFF+s3lTx2+97SUGsU:9mvghhCG+PDbn7SUGb
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection credential_access discovery execution keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol
smtp
Host
mail.speedhouseoman.com
Port
587
Username
[email protected]
Password
SpH@0099

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2312-22-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-20-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-27-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-26-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-25-0x0000000000400000-0x0000000000426000-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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2780	powershell.exe

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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Contract.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Contract.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Contract.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 3032 set thread context of 2312	3032	Contract.exe	34

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 4 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	Contract.exe
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	Contract.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
2040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2312	Contract.exe
2780	powershell.exe
2312	Contract.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	Contract.exe
Token: SeDebugPrivilege	2780	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2780	3032	Contract.exe	30
PID 3032 wrote to memory of 2780	3032	Contract.exe	30
PID 3032 wrote to memory of 2780	3032	Contract.exe	30
PID 3032 wrote to memory of 2780	3032	Contract.exe	30
PID 3032 wrote to memory of 2040	3032	Contract.exe	32
PID 3032 wrote to memory of 2040	3032	Contract.exe	32
PID 3032 wrote to memory of 2040	3032	Contract.exe	32
PID 3032 wrote to memory of 2040	3032	Contract.exe	32
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34
PID 3032 wrote to memory of 2312	3032	Contract.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Contract.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Contract.exe

C:\Users\Admin\AppData\Local\Temp\Contract.exe
"C:\Users\Admin\AppData\Local\Temp\Contract.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zvYGBG.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2780
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zvYGBG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9C7E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2040
- C:\Users\Admin\AppData\Local\Temp\Contract.exe
  "C:\Users\Admin\AppData\Local\Temp\Contract.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:2312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp9C7E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp9C7E.tmp
Size 1KB
SHA256 6c50cfda1b0fcf6543c5d86c6da3eb9d19bb15655a343e5d9fe60850caebb933
MD5 0c5bd78cd236ce45016df43aba172aba
SHA1 fe33819b994a18294b09a1f33473ec2c8942a627
SHA512 53bc57ab427269c6df666d6045723e4f5234a9c23917e0073d4c699f3477bda1bdd998cd8a88ffdaf7569779818d4c430c9ae5910ff67a8753a91eee16c57d08
MD5 SHA1 SHA512

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memory/2312-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2312-25-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2312-26-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2312-27-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2312-18-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2312-20-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2312-22-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2312-16-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/3032-4-0x000000007485E000-0x000000007485F000-memory.dmp

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memory/3032-8-0x0000000000F30000-0x0000000000F98000-memory.dmp

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memory/3032-7-0x00000000003E0000-0x00000000003F0000-memory.dmp

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memory/3032-6-0x00000000003D0000-0x00000000003DC000-memory.dmp

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memory/3032-5-0x0000000074850000-0x0000000074F3E000-memory.dmp

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memory/3032-0-0x000000007485E000-0x000000007485F000-memory.dmp

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memory/3032-3-0x00000000003B0000-0x00000000003CA000-memory.dmp

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memory/3032-2-0x0000000074850000-0x0000000074F3E000-memory.dmp

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memory/3032-1-0x0000000000FA0000-0x0000000001038000-memory.dmp

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memory/3032-28-0x0000000074850000-0x0000000074F3E000-memory.dmp

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