Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ec386eca081d75e…

MALICIOUS

PDF

43.9 KB Created: 2020-08-08 20:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0191dc0298ad893c3c4325bdd4dc840b SHA-1: 28d1ba79c400df7e6a6784ac3b57f24996d78a32 SHA-256: 3ec386eca081d75e461f9ef4885babc3d579f82b69d5946684fbc7df35977763
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 external PDF files hosted on Shopify. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=acromegalia+pediatria+pdf', which is likely used to direct users to malicious content. The ML classifier also strongly flagged this PDF as malicious. The document body appears to be corrupted or obfuscated, but the presence of numerous links and the malicious redirector strongly suggest a link-farming or phishing attack.

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.cc/pify?keyword=acromegalia+pediatria+pdf In PDF document text
    • http://files.bellamedaesthetics.com/uploads/1/3/0/8/130874422/lizolajotepize-pirasogezele.pdfIn PDF document text
    • http://files.hunterscourt.com/uploads/1/3/1/4/131452982/bomisutuguzufe_rivezemamizip.pdfIn PDF document text
    • http://files.bridgevalueconsulting.com/uploads/1/3/1/6/131606923/devedaxobemawef_xegari_jumifebezabawub_disegadokafoxor.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/1/0432/2426/8968/files/2020_year_telugu_calendar_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/classic_wow_herbalism_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7506/6273/files/kazeropoxadupipaxufap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1639/4648/files/92532253600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8461/9681/files/finepomugenexosijaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/22949665081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2996/8534/files/72598285739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27347714529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/jiralurefojod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0498/4474/files/tetirejitutugebiwozarotap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7086/6076/files/pekuwijeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7391/1449/files/8917478209.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 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2D 5284 bytes
SHA-256: 25ed20ffca5f923524ef0809c8d14bdaaad1adb9d0cd413ba181f93d819be2ed
font_01_sfnt_off00008016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8016 10060 bytes
SHA-256: 89e66b17dbf3b892fc4426b3e9449b447f010499d1c0cf1caf160eae0b9ee8a4

Open this report in the interactive analyzer, or submit your own file for analysis.