Malicious PDF — malware analysis report

Static analysis result for SHA-256 10e143034ab1acc3…

MALICIOUS

PDF

81.9 KB Created: 2021-03-01 01:18:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ce53ecde87f10f59f44524e09302de65 SHA-1: e06c62a14de72970b765b4f55e63f11c2eb39891 SHA-256: 10e143034ab1acc321d263a77d303bdd53216737dbd13e94046075675e40145c
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://botokaw.ru/123?utm_term=how+to+donate+clothes+for+money PDF link annotation
    • https://vunukufe.weebly.com/uploads/1/3/4/6/134640969/6826948.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/87835108134.pdfIn PDF document text
    • http://fufikozulubus.22web.org/gone_with_the_wind_characters_ranked.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/wegisukuxij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_6031ef9f34f3a.pdfIn PDF document text
    • https://bokasaveti.weebly.com/uploads/1/3/4/7/134725866/8b12dbddd5c.pdfIn PDF document text
    • https://worizura.weebly.com/uploads/1/3/1/4/131437573/tupabarakuka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367621/normal_60178b65cdeed.pdfIn PDF document text
    • http://baliferifopiz.mypressonline.com/would_an_evap_line_be_blue.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fibesezati/financial_report_analysis_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/bts_dna_choreography_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/pete_s_dragon_full_movie_english.pdfIn PDF document text
    • http://ruxududomaba.epizy.com/european_society_of_cardiology_guidelines_troponin.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/2168907400.pdfIn PDF document text
    • http://vapilazomenotak.rf.gd/xunatij.pdfIn PDF document text
    • http://xabasib.rf.gd/docker_run_android_studio.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/capitalism_video_game.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/33081932786.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/fraction_to_decimal_worksheet_grade_5.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f533.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF533 5156 bytes
SHA-256: c2657d136847079bd0c9a47791bb999572ce2179ceda6c3898f1c24a97fab765
font_01_sfnt_off0001069e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1069E 10904 bytes
SHA-256: 81df1a59e39982fcc2c8fa584a8768ba1ed0d9bc812ce56772943fc25dd64039
font_02_sfnt_off00012be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BE2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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