Malicious PDF — malware analysis report

Static analysis result for SHA-256 f417d792ec9143b6…

MALICIOUS

PDF

51.3 KB Created: 2020-09-16 19:00:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f19620f8ab829a9ea6262f5159f0642 SHA-1: d5c03bc9f342ce5d1e7cddd330f151727283ab42 SHA-256: f417d792ec9143b66be7280867b088020824f57ed8a9933f35eefd7bda9f31e0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to redirectors or link farms, indicating a malicious intent to drive traffic to potentially harmful sites. The primary lure appears to be related to 'minecraft unblocked games 76', as seen in the document body and one of the malicious URLs. The heuristic firings confirm the presence of malicious redirector links and a link farm, strongly suggesting this PDF is designed for malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wix?keyword=minecraft+unblocked+games+76 In PDF document text
    • http://files.primerentals.us/uploads/1/3/2/6/132696506/rexobavebiwono_giwove.pdfIn PDF document text
    • http://waxej.msdurrett.com/uploads/1/3/1/6/131637457/f3598ccc.pdfIn PDF document text
    • http://files.mehlmansmunchkins.com/uploads/1/3/0/7/130740212/f41c8.pdfIn PDF document text
    • http://vulot.lukaspoischbeg.com/uploads/1/3/0/7/130739540/dea6b111.pdfIn PDF document text
    • http://files.jenkinsphoto.com/uploads/1/3/0/8/130874554/zikol-mumoranawiv-zabot.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/1/0435/5417/7185/files/anbe_sivam_movie_in_tamilyogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/hannah_crafts_the_bondwoman_s_narrative.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8729/8714/files/kukogexafali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/90058739173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5845/2897/files/10957328686.pdfIn PDF document text
    • https://76ed91da-bf49-4857-8fb2-81681ff65da8.filesusr.com/ugd/8e66a5_47e6eb5117d64c3a8bdcff3e2c4c1e0d.pdf?index=trueIn PDF document text
    • https://7f9146c5-6751-40cb-a739-d7244c0d6dc9.filesusr.com/ugd/aec2ea_d54e6d51190c455a8516d36459952d8b.pdf?index=trueIn PDF document text
    • https://12839eed-907b-4bf1-88ba-dd8ea023d9f5.filesusr.com/ugd/93c935_685c07658f634c5b831855d88c3f45d6.pdf?index=trueIn PDF document text
    • https://1398cfc9-232d-4419-be97-da0fa905dff8.filesusr.com/ugd/5bb01c_abe4b2f2a18b4415b27735d9b50d8d81.pdf?index=trueIn PDF document text
    • https://9612e5ea-76d7-4a13-9ff5-f5b98a397a64.filesusr.com/ugd/696117_b1fa0a6e4c1744c3be0464e027f23a56.pdf?index=trueIn 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_off00007a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A58 5668 bytes
SHA-256: 7d26681497f57a06c783fcbbbed10ba73c98bc9baf7c2807dbe696a253551667
font_01_sfnt_off00008d94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D94 10696 bytes
SHA-256: c089973c5cf68024d285eeae8dba9aabfa72d7d25d4a4838cafeb96298649f06
font_02_sfnt_off0000b21f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB21F 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3