Malicious PDF — malware analysis report

Static analysis result for SHA-256 014ad744779adb64…

MALICIOUS

PDF

45.8 KB Created: 2020-11-08 20:14:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5f0a0cacb07455491f58012e8469eb59 SHA-1: 9ff28842fe247e62c6e104468bc8732442962f4e SHA-256: 014ad744779adb64f7b7b6955a73faf3f1b8690e545dd81dfff8d6ccbf63e374
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous external links, suggesting a link farm or SEO spamming attempt. The primary URL, 'https://traffking.ru/123?keyword=raiders+schedule+2020', is presented as a Raiders schedule, likely to attract clicks. The ML classifier strongly indicated maliciousness, and the presence of many external links points towards a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffking.ru/123?keyword=raiders+schedule+2020 PDF link annotation
    • https://pibefabetanob.weebly.com/uploads/1/3/4/3/134376782/rakifi_zawon.pdfIn PDF document text
    • https://zalawevovupat.weebly.com/uploads/1/3/0/9/130969727/7345674.pdfIn PDF document text
    • https://nudiwosesi.weebly.com/uploads/1/3/4/3/134317077/ponaxeritu-jakuza-tidumexi-sagemafolu.pdfIn PDF document text
    • https://seririgikum.weebly.com/uploads/1/3/0/7/130739922/resutefi-koximefunapej-wodovawun.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/gapivegek/gofumefujimidoda.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/44846813469.pdfIn PDF document text
    • https://wemirosux.files.wordpress.com/2020/11/kuduxegumasoxafev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1be339fb-46d8-4e3a-ae16-479e8d2841b5/gizexikinef.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/native_american_ribbon_shirts_men_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/fagabararuragedasud.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/miya_bhai_song_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/373daf87-ec98-44d4-91c5-bc3335cfbce1/walther_wa_2000_forgotten_weapons.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3051ff91-36af-4f8b-aecf-cc0b7671af10/wopulewaxizuvuxuje.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_off00006a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A81 4892 bytes
SHA-256: d464f9ecab124f286e279857ca126a9a1cc2eed7881ce0cf78e7dce5555aaa21
font_01_sfnt_off00007b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B27 9796 bytes
SHA-256: 26b62e927203531609789db900cb6cd951649fe82332dd729d1cab426870e20a
font_02_sfnt_off00009c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C9B 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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