Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d27c87e5193a41a…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 07:20:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76ffbe733e04f0aebf392298d89de116 SHA-1: 65080fe93e2fc1b46bf27bf783ace4bc78cde7bb SHA-256: 8d27c87e5193a41aa70c4c5a978d67792031dbe8086bc7d9a951d06c7ec85d0a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=transformers+prime+autobots+roll+out'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same lure text and URLs, suggesting an attempt to disguise malicious links as content. The primary intent appears to be redirecting users to malicious infrastructure.

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=transformers+prime+autobots+roll+out In PDF document text
    • http://visuni.armstrongsinvestigators.com/uploads/1/3/0/7/130740112/e50d1b9.pdfIn PDF document text
    • http://gusidisuz.hatcherforgeandleather.com/uploads/1/3/2/3/132302978/d5642b8dbed4.pdfIn PDF document text
    • http://files.dopenailz.com/uploads/1/3/1/8/131871730/sitisotafimasokeruzo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7825/4753/files/76471342675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9354/1535/files/fundamentals_of_corporate_finance_berk_3rd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8598/6982/files/89013148627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4294/6724/files/karivexujas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2539/2035/files/48056540921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0454/9544/files/nodoguripilujagizope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/crystal_agile_methodology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/pilukezusubominuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0831/7850/files/audio_cutter_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/53396990099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3671/files/muwukojopavisivi.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69AB 3452 bytes
SHA-256: a5c71aec3164dd4a023688001cf02fd8eb608131cdf1ec45a28c6a60faab40c6
font_01_sfnt_off000075fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75FB 5136 bytes
SHA-256: e6c87196b907cdb3265ac12e3a47a71c175af01bd220fd1a53bbc74cd7b8378c
font_02_sfnt_off00008752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8752 9856 bytes
SHA-256: e0649afeeaa784aa5e09e5b975a562c24bf58e205e3a75dd0750b93fff976074

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