MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 584ce849d0083873a488596467d331d30e376bf3a0d572c7c23e108775f1d6b6. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



SnakeKeylogger


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 584ce849d0083873a488596467d331d30e376bf3a0d572c7c23e108775f1d6b6
SHA3-384 hash: 35acb51dbeb250a9872341220487e341b69acd014cf712cb3a19860367208edacee1ba07b60c773c42d2678812e5d23e
SHA1 hash: f68b906f1a8e799974da5543c470f8628f509b9a
MD5 hash: 70acae607fbd4f75f3b17fc90a41d27b
humanhash: chicken-five-idaho-mobile
File name:BOI139-2022.03.08.PDF.bat
Download: download sample
Signature SnakeKeylogger
File size:828'944 bytes
First seen:2022-03-08 14:16:35 UTC
Last seen:2022-03-09 14:45:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:ti2nZIYfrk1qFvn5c9Gx4mHrooooFyHfeweAokH2+TzBTLgLm9tVDFdWbKoUzUdi:82nGYfrOAhcAC34aFZOqfNq/4QXhe
Threatray 720 similar samples on MalwareBazaar
TLSH T114059EACBB5C2B57EFA416F249A650063E20370CA4CED6312A8EDD94F0E2D75993435F
Reporter GovCERT_CH
Tags:exe signed SnakeKeylogger

Code Signing Certificate

Organisation:Microsoft Cooperation
Issuer:Microsoft Cooperation
Algorithm:sha1WithRSAEncryption
Valid from:2022-03-08T10:00:31Z
Valid to:2023-03-08T10:00:31Z
Serial number: e19e369427bbad42eec54fb6e7aa9bf5
Thumbprint Algorithm:SHA256
Thumbprint: 6f940a0dd24ef5db09412712a397deb17374c1ec296e3941e18bfa907a0752e5
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
3
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Adding an access-denied ACE
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Launching the process to interact with network services
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a file
Launching a service
Creating a window
Sending an HTTP GET request
Changing a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Setting a single autorun event
Blocking the User Account Control
Moving of the original file
Adding exclusions to Windows Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware obfuscated overlay packed
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Snake Keylogger
Verdict:
Malicious
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Adds a new user with administrator rights
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to hide user accounts
Drops PE files with benign system names
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Moves itself to temp directory
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Active Directory User Backdoors
Sigma detected: File Created with System Process Name
Sigma detected: Hurricane Panda Activity
Sigma detected: New RUN Key Pointing to Suspicious Folder
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 585122 Sample: BOI139-2022.03.08.PDF.bat Startdate: 08/03/2022 Architecture: WINDOWS Score: 100 59 prda.aadg.msidentity.com 2->59 61 freegeoip.app 2->61 63 2 other IPs or domains 2->63 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 Yara detected UAC Bypass using CMSTP 2->71 73 10 other signatures 2->73 8 BOI139-2022.03.08.PDF.exe 7 11 2->8         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        16 10 other processes 2->16 signatures3 process4 dnsIp5 49 88429b80-073b-48fb-8348-80d6be35d145.exe, PE32 8->49 dropped 51 C:\Users\Public\Documents\...\svchost.exe, PE32 8->51 dropped 53 C:\Users\...\BOI139-2022.03.08.PDF.exe.log, ASCII 8->53 dropped 55 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->55 dropped 77 Moves itself to temp directory 8->77 79 Uses schtasks.exe or at.exe to add and modify task schedules 8->79 81 Writes to foreign memory regions 8->81 87 4 other signatures 8->87 19 88429b80-073b-48fb-8348-80d6be35d145.exe 8->19         started        22 net.exe 8->22         started        24 net.exe 8->24         started        28 12 other processes 8->28 83 Changes security center settings (notifications, updates, antivirus, firewall) 12->83 26 MpCmdRun.exe 12->26         started        85 Multi AV Scanner detection for dropped file 14->85 57 127.0.0.1 unknown unknown 16->57 file6 signatures7 process8 dnsIp9 75 Multi AV Scanner detection for dropped file 19->75 31 conhost.exe 19->31         started        33 conhost.exe 22->33         started        35 net1.exe 22->35         started        37 conhost.exe 24->37         started        39 net1.exe 24->39         started        41 conhost.exe 26->41         started        65 192.168.2.1 unknown unknown 28->65 43 conhost.exe 28->43         started        45 conhost.exe 28->45         started        47 11 other processes 28->47 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Status:
Malicious
First seen:
2022-03-08 14:17:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Result
Malware family:
snakekeylogger
Score:
  10/10
Tags:
family:snakekeylogger collection evasion keylogger persistence spyware stealer trojan
Behaviour
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks whether UAC is enabled
Looks up external IP address via web service
Checks BIOS information in registry
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Windows security modification
Executes dropped EXE
Grants admin privileges
Nirsoft
Snake Keylogger
Snake Keylogger Payload
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
584ce849d0083873a488596467d331d30e376bf3a0d572c7c23e108775f1d6b6
MD5 hash:
70acae607fbd4f75f3b17fc90a41d27b
SHA1 hash:
f68b906f1a8e799974da5543c470f8628f509b9a
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

SnakeKeylogger

Executable exe 584ce849d0083873a488596467d331d30e376bf3a0d572c7c23e108775f1d6b6

(this sample)

  
Dropped by
snakekeylogger
  
Delivery method
Distributed via e-mail attachment

Comments