Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec7382889d995495…

MALICIOUS

PDF

81.6 KB Created: 2021-03-17 07:31:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 601e7a02afd7d5b23384ba3f006f0928 SHA-1: 0c646a66b9bd5e0dde54a0d203b859d8ed63d312 SHA-256: ec7382889d99549534887b69abb495d6d0631534b478fcbb703ae651c1e2c6d6
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with a primary lure related to downloading the movie 'Maze Runner 1'. The presence of external URIs and link farm heuristics suggests an attempt to redirect users to malicious sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 5

  • 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 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/strik?utm_term=maze+runner+1+full+movie+download+in+english PDF link annotation
    • https://mawubuzepegi.weebly.com/uploads/1/3/3/9/133989242/4256322.pdfIn PDF document text
    • http://suraneb.scienceontheweb.net/business_email_format.pdfIn PDF document text
    • http://zapixexarepol.medianewsonline.com/angeles_y_demonios_libro_dan_brown.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/jaybird_x3_not_pairing_with_iphone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420244/normal_5fc9a207a3f5a.pdfIn PDF document text
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/4985508.pdfIn PDF document text
    • http://liwexun.mywebcommunity.org/wudafimufuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486035/normal_6049f60a1dd3a.pdfIn PDF document text
    • https://zenimuxen.weebly.com/uploads/1/3/4/3/134317926/ac6bdf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385848/normal_5fdc3dbd58775.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/kupemixipakejugow.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/4640153433.pdfIn PDF document text
    • http://sifisomatexow.sportsontheweb.net/18524470386.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389582/normal_5ff31803d3fef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454543/normal_6031e8214535d.pdfIn PDF document text
    • http://pawusewi.sportsontheweb.net/sigoganadaxulim.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/vavapekadoliti/what_does_your_sacred_cow_mean.pdfIn PDF document text
    • https://ae0ecf71-49bb-4ac4-bba4-d0f2a20d1af9.filesusr.com/ugd/668a47_5c92625e86d4420fa0af9e160ed162f3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fajixe/gift_acknowledgement_letter_template.pdfIn PDF document text
    • https://e6b56e3c-1b88-4cfb-972d-ab1702b0a06e.filesusr.com/ugd/8c0e65_f6c23aa1416c47afaf40d91c51b17f76.pdf?index=trueIn PDF document text
    • https://96a9e3af-f0c3-4048-9e6c-0ad8da3c6018.filesusr.com/ugd/15d534_cbee1bb44bc3481997aab5ae133a1d33.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/likerajatob/84073038472.pdfIn PDF document text
    • https://631ffb88-cf2d-4844-8d6b-9338a1b21cc5.filesusr.com/ugd/d24e6f_d1dfbbe71c204ee78aaa9dd0dc18b96c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bokofapig/harmonize_happy_birthday_video.pdfIn PDF document text
    • https://36071b1a-d853-4ad1-bccf-0ed894d94038.filesusr.com/ugd/906e9f_b7c321f393f34698bc19d22af2891bcc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bagokiko/niv_quest_study_bible_leathersoft_teal_the_question_and_answer_bible.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE83 5580 bytes
SHA-256: 0965fb797b5056050fce4d04903d3f3b3765e4ee6896c72427d30dbc08565375
font_01_sfnt_off00011187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11187 11404 bytes
SHA-256: 9bf856ec13e8f111e4946fd7fae36bfce2615af6724a41f72d095733abdb19ba