Malicious PDF — malware analysis report

Static analysis result for SHA-256 5847e8aeb7068aba…

MALICIOUS

PDF

48.5 KB Created: 2020-08-19 10:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60369774092fd7dde49329ffdfe63169 SHA-1: 523bfaff166f4a3dbb8fb0344449af6baf8a8fa5 SHA-256: 5847e8aeb7068aba7847699d38e739ea8ef99a4b9acc4a643d05464b068646ae
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious content. One of the primary links points to a known malicious redirector. The document body itself is largely unreadable binary data, but the presence of the malicious redirector URL and the link farm heuristic strongly suggest a malicious intent, likely to lure users to harmful websites.

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.ru/pify?keyword=platform+business+model+canvas In PDF document text
    • http://zigate.stallionscouts.org/uploads/1/3/1/1/131164250/teforo_jovigenufu_witeles_dipogasisavi.pdfIn PDF document text
    • http://files.beautyartistry.net/uploads/1/3/2/8/132814898/6937fb.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/1/0430/4178/3959/files/josimafanipinarurekubumad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3823/5031/files/41394285532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/doragewotupepefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/71612019396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/dosafugidena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3155/0362/files/soul_surfer_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7727/9652/files/40649605330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7082322425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/bengali_to_english_translation_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/povepakubegelulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9704/7718/files/61133100189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8947/7278/files/tikomekutoladadolevoxajoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/timevidoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8171/8173/files/71649986114.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_off000071a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A2 5248 bytes
SHA-256: 11e4d53a185578ae22ef82e56708a911852ac8c958ef78a01a095ac0306a16ea
font_01_sfnt_off0000835e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x835E 10488 bytes
SHA-256: acb2b3d87c7b109481a96842a2e3079f7103ae146d3607c6c42fc090b6f0f18a
font_02_sfnt_off0000a73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA73C 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378