Malicious PDF — malware analysis report

Static analysis result for SHA-256 60039aa8050df490…

MALICIOUS

PDF

48.6 KB Created: 2020-11-02 21:07:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 52ccd17074be0dc192e698f5f4dbf911 SHA-1: d72d74d65670a3edccb6a7e4d6f5c818f6e53a92 SHA-256: 60039aa8050df490f4c1d2be796adc85da8997a3f8fad220fa322defbf9e4e32
154 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.me/123?keyword=google+pixel+3+xl+user+manual+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Google pixel 3 xl user manual pdf' and the wkhtmltopdf application, suggesting a lure to download a fake manual. The presence of numerous external PDF links further indicates a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.me/123?keyword=google+pixel+3+xl+user+manual+pdf In PDF document text
    • https://pirivelel.weebly.com/uploads/1/3/4/5/134505874/jajetojomigunataxor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370530/normal_5f9647666fd20.pdfIn PDF document text
    • https://porimejonawi.weebly.com/uploads/1/3/4/3/134368737/tuvolojuxofumokoxim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409623/normal_5f9a7eca2aaf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389370/normal_5f9e3318c4d81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_5f925980611f9.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://cdn.shopify.com/s/files/1/0500/9847/1080/files/77182005371.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ad182d6-48db-4272-98a1-3d1664aced14/exercice_comparaison_mtaphore_5eme.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74419672-c143-4950-abdd-00433dca4751/15514970953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9417/1558/files/zaporavakuzulavot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5fc1b95-e9b1-46a3-a5fa-b5432098563f/7288549094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8473/4883/files/to_kill_a_mockingbird_chapter_8-9_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BE 5424 bytes
SHA-256: 2d002f13ebfb9bc0e71a621c802d483673cc0c3ae39ea5fdc0ab6dbcca1fcbe0
font_01_sfnt_off00008320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8320 10680 bytes
SHA-256: efd437b898d84ffdcad8a0d2d081120d7a42526b2c1f551d1a45ff5ba250a68b
font_02_sfnt_off0000a77e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA77E 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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