MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 837dac696a5a6d39add23990b6ec150c4ee86a770efa8c2d4d7a84e4d9c982d2. 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



PureLogsStealer


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: 837dac696a5a6d39add23990b6ec150c4ee86a770efa8c2d4d7a84e4d9c982d2
SHA3-384 hash: 3f1bdd5fe096e463449dae171e43e7120927ae95d3ab38d44fc5c9ec259bef3f5826f683f97aac6bb69fc495956e96b3
SHA1 hash: 8ce133bc3b24874d0a448018e4b452e2831bef6b
MD5 hash: 9a25796752ed1aa9186f9c8c1e6b53b2
humanhash: hotel-muppet-video-blossom
File name:IMG___090000e09884877474838839993948848484949.hta
Download: download sample
Signature PureLogsStealer
File size:136'422 bytes
First seen:2025-10-01 07:22:34 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 1536:HqfZx04DPPI8Lcsq6LzS85Ea56QJF6LoB3aH:HqfZx0yPPI8d28SLQJPq
TLSH T13AD334ED0F5C99819823F2346E06919B9DE20797C0B342D5B5EED40EDBAB027D16293F
Magika html
Reporter Anonymous
Tags:hta PureLogsStealer

Intelligence


File Origin
# of uploads :
1
# of downloads :
72
Origin country :
PL PL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
97.4%
Tags:
obfuscate xtreme spawn
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Payload URLs
URL
File name
http://ixti.net/development/javascript/2011/11/11/thymuses-enLermontovdeLermontov-of-utf8-in-browser-with-js.html
HTA File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
File Type:
hta
First seen:
2025-09-30T06:13:00Z UTC
Last seen:
2025-10-02T10:28:00Z UTC
Hits:
~10
Detections:
Trojan-Downloader.JS.SLoad.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic
Result
Threat name:
PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Creates a thread in another existing process (thread injection)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious MSHTA Child Process
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Powershell download and execute
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1787117 Sample: IMG___090000e09884877474838... Startdate: 01/10/2025 Architecture: WINDOWS Score: 100 43 pasteide.com 2->43 59 Suricata IDS alerts for network traffic 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for URL or domain 2->63 65 6 other signatures 2->65 10 mshta.exe 1 2->10         started        signatures3 process4 signatures5 67 Suspicious powershell command line found 10->67 13 powershell.exe 15 16 10->13         started        process6 dnsIp7 47 pasteide.com 94.130.69.214, 443, 49693 HETZNER-ASDE Germany 13->47 49 198.23.177.201, 49690, 80 AS-COLOCROSSINGUS United States 13->49 69 Writes to foreign memory regions 13->69 71 Injects a PE file into a foreign processes 13->71 17 aspnet_compiler.exe 4 13->17         started        21 conhost.exe 13->21         started        signatures8 process9 dnsIp10 41 185.149.24.149, 20110, 49694, 49719 TELEFIBERNO Netherlands 17->41 51 Tries to steal Mail credentials (via file / registry access) 17->51 53 Tries to harvest and steal browser information (history, passwords, etc) 17->53 55 Writes to foreign memory regions 17->55 57 4 other signatures 17->57 23 chrome.exe 1 17->23         started        26 chrome.exe 17->26 injected 28 chrome.exe 17->28 injected 30 3 other processes 17->30 signatures11 process12 dnsIp13 45 192.168.2.5, 138, 20110, 443 unknown unknown 23->45 32 chrome.exe 23->32         started        process14 dnsIp15 35 googlehosted.l.googleusercontent.com 142.250.217.225, 443, 49712 GOOGLEUS United States 32->35 37 www.google.com 142.250.217.228, 443, 49699, 49702 GOOGLEUS United States 32->37 39 clients2.googleusercontent.com 32->39
Gathering data
Verdict:
Malicious
Threat:
Trojan-Downloader.JS.SLoad
Threat name:
Script-JS.Trojan.Boxter
Status:
Malicious
First seen:
2025-09-30 14:25:59 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
11 of 37 (29.73%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
katzstealer
Similar samples:
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery execution
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Malware Config
Dropper Extraction:
http://198.23.177.201/img/optimized_MSI.png
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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Web download

PureLogsStealer

HTML Application (hta) hta 837dac696a5a6d39add23990b6ec150c4ee86a770efa8c2d4d7a84e4d9c982d2

(this sample)

  
Delivery method
Distributed via web download

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