Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e9ccb1d69d84d03…

MALICIOUS

PDF

36.5 KB Created: 2020-08-19 04:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 316da89fc76ab45b31d7ec71e351ce57 SHA-1: 129376a8f419a30cd240456d1c7dc934bfd039ec SHA-256: 4e9ccb1d69d84d03bda41462a9ffcc6abe18330fe95e1fe2ea961330edceb8c1
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though corrupted, contains text related to a dishwasher manual and a malicious URL, reinforcing the lure. The primary malicious URL is https://ttraff.ru/pify?keyword=kelvinator+dishwasher+kd14ss+manual, which likely leads to further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=kelvinator+dishwasher+kd14ss+manual In PDF document text
    • http://files.monticellosearch.com/uploads/1/3/0/8/130814043/gufodesiki.pdfIn PDF document text
    • http://files.recapinc.net/uploads/1/3/0/8/130814926/be30230643b19f.pdfIn PDF document text
    • http://files.mattiafagnonionlus.com/uploads/1/3/2/6/132682134/midefufa_lipejiv_bozipiwenum_pivijakez.pdfIn PDF document text
    • http://files.boxersvonamadeus.com/uploads/1/3/1/1/131164185/8622441.pdfIn PDF document text
    • http://files.cowtowncountryclub.com/uploads/1/3/1/6/131606397/vaxolawogulamalifem.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/1/0439/1141/3915/files/jepoxavavanime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6104/2591/files/7381942467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/borrowing_words_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/97755891062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7306/0520/files/jafino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/cms-_xch._33across._com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/79788273560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/81487828567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/15266779866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/turevewoz.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A5 5392 bytes
SHA-256: 56b44234fc0bc1b907b897802e62a49f9fb137361c9fb6f7bea34b147b850702
font_01_sfnt_off000062e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E9 9980 bytes
SHA-256: 459f25651f47ea027660bee35c7d9b852df6ce23671336dc0130a6b7b686a5a0

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