Malicious PDF — malware analysis report

Static analysis result for SHA-256 02229969c1a690f6…

MALICIOUS

PDF

96.9 KB Created: 2021-03-20 07:26:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 6b2fcb8730f9c224aed069027806b6a9 SHA-1: c8bc338fff196567cfc180047d43c693c2cfaf83 SHA-256: 02229969c1a690f60164197f45b957f402263937e79dc035a90a6fb17aa7b139
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a significant number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external URLs point towards an attempt to redirect users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ponafet.ru/wix?keyword=bleach+brave+souls+best+characters+2018 PDF link annotation
    • https://zaxadumumuguxe.weebly.com/uploads/1/3/1/4/131454216/204ec33181cf.pdfIn PDF document text
    • https://mujolimu.weebly.com/uploads/1/3/4/8/134868529/jozarazin-jemato-tutemonen-suxenegewibo.pdfIn PDF document text
    • https://jaligudupu.weebly.com/uploads/1/3/5/3/135391073/3298c12.pdfIn PDF document text
    • https://zogomidovuga.weebly.com/uploads/1/3/1/6/131636914/pusunivevedomigu.pdfIn PDF document text
    • https://betisifi.weebly.com/uploads/1/3/1/4/131438474/de718304ddd.pdfIn PDF document text
    • https://nemelodanunoju.weebly.com/uploads/1/3/0/8/130874480/terudixuvisujugaweta.pdfIn PDF document text
    • https://wulodegekejiwa.weebly.com/uploads/1/3/4/2/134266030/lumeju.pdfIn PDF document text
    • http://vimoroketoburiv.22web.org/albendazole_vs_mebendazole.pdfIn PDF document text
    • http://nezatarofarix.getenjoyment.net/soresubonujifevikolopati.pdfIn PDF document text
    • https://pisisixiva.weebly.com/uploads/1/3/1/6/131636779/wugiga.pdfIn PDF document text
    • http://wirodapupoz.iblogger.org/vacation_request_form_template.pdfIn PDF document text
    • https://daxusumupazi.weebly.com/uploads/1/3/4/7/134702932/9beb70.pdfIn PDF document text
    • http://vibolofisef.mywebcommunity.org/69391220389.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/zosetogejud.pdfIn PDF document text
    • https://b3d988c2-7a7d-4c3c-9141-221b6550481e.filesusr.com/ugd/9dda13_87fba5136627437ab801e113a9b2952f.pdf?index=trueIn PDF document text
    • https://9e7b01ce-91ce-414a-93c5-ade8df4b7359.filesusr.com/ugd/cfbfd2_8163783073a24b53963cf56dbdef75e8.pdf?index=trueIn PDF document text
    • https://c5c27394-2042-4749-9b39-d1c24dcbd9f0.filesusr.com/ugd/e9b987_e3883cab932e4b50a72e2318ad664f37.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/libros_gramatica_inglesa_avanzada.pdfIn PDF document text
    • http://momedeturus.epizy.com/98085883172.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/appcompatspinner_example_in_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/magobosanigepe.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B24 2828 bytes
SHA-256: ec0617e7d4b767a4f38c4993bdaaecdad4a8b4ca688b321d2bd370a6bc92076d
font_01_sfnt_off0001252d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1252D 5656 bytes
SHA-256: b1b9e342deeaf762d69ba02dfb4d58d341314e5bd096b0600a8a1c0818e2aad9
font_02_sfnt_off00013867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13867 11920 bytes
SHA-256: 7ec68fdf03e0d7474abb9617a3178af354985af8f2c0e13dbdeb7728e36096ba
font_03_sfnt_off0001608c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1608C 16036 bytes
SHA-256: bc1c1644e30597ae0beaac312b9749a82b64e26c109397326cdc67fdbaf2fe17

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