Malicious PDF — malware analysis report

Static analysis result for SHA-256 832787181b87c5ba…

MALICIOUS

PDF

62.6 KB Created: 2020-08-06 15:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0146289d4f48b22962cc693dacae80ec SHA-1: d03d7b6d0a7761b7c58e74487cb87788c160a38c SHA-256: 832787181b87c5ba50d8de8fb7d26e7d4fd337c52c14163f7532ee9b3b297dde
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, pointing to a malicious redirector at 'https://ttraff.com/pify?keyword=how+to+use+japanese+abacus+pdf'. The document body, though heavily obfuscated, contains this URL, suggesting it's the primary lure. The presence of numerous external links, many hosted on Shopify, further supports the SEO link farm tactic. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=how+to+use+japanese+abacus+pdf In PDF document text
    • http://files.aliciagalindo.com/uploads/1/3/0/9/130969190/molomoputi.pdfIn PDF document text
    • http://files.ruthierosephotography.com/uploads/1/3/1/6/131606405/ec2d5e9608ea.pdfIn PDF document text
    • http://files.ashlynnsboutique.com/uploads/1/3/0/7/130739340/d87cff3.pdfIn PDF document text
    • http://files.kmarksconsulting.com/uploads/1/3/0/9/130969237/kivuke-nomilewo.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/1/0427/7728/0671/files/attestation_de_salaire_cnss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9452/3552/files/wow_classic_hunter_pre_raid_bis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5264/5017/files/nesesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/49662401561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8607/6309/files/41485598116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1373/4563/files/git_change_commit_author.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6275/4461/files/skate_3_cheats_codes_ps3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1935/3767/files/new_vegas_ultimate_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/41516919033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1977/9741/files/html_embed_from_url.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7833/7187/files/vuximogeloxorir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/38744252719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/90190553523.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000889e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x889E 10064 bytes
SHA-256: 351cd9327ecffa841cf3e0c9ecefe85e8bed75d54adf39b7ffb816dc4490249a
font_01_sfnt_off0000aa57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA57 5124 bytes
SHA-256: bf39cb1701e222d908802206c9c266b3bcfbce8e67198a62cb92e314b4a9508e
font_02_sfnt_off0000bbe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBE3 10104 bytes
SHA-256: fc80ffcb149424b3a14fd7970a8f71165528e886730c3eb9f4f68a7074c2c264
font_03_sfnt_off0000de79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE79 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c