Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e142ecc1acb7978…

MALICIOUS

PDF

36.3 KB Created: 2020-08-17 07:08:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d757734d1ea92d0660cb269bc39b4cc7 SHA-1: 7bb23f99b2859b67f8bf82021a6d743468615052 SHA-256: 0e142ecc1acb7978a0dda11f49666674d3f964e6fed5538a22f05f78fe3d0438
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which redirect to malicious infrastructure. The primary redirector URL identified is 'https://ttraff.ru/pify?keyword=chobani+gimmies+nutrition+information'. This suggests the document is part of a link farm or phishing campaign designed to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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=chobani+gimmies+nutrition+information In PDF document text
    • http://files.createmoremusic.com/uploads/1/3/0/7/130776516/kikuwafonabogiwur.pdfIn PDF document text
    • http://files.macassarproductions.com/uploads/1/3/2/6/132681201/godugoxedire.pdfIn PDF document text
    • http://files.phoenixparkour.com/uploads/1/3/0/8/130813934/mipuxul-tirubi-zilimekenuzu-zugutirexuzon.pdfIn PDF document text
    • http://files.dart-bayernliga.com/uploads/1/3/1/1/131164419/vepipafejipuvosulo.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/1/0428/1060/5735/files/69118584269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/nearpod_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/meditation_music_guided_imagery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/9827684159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9136/5792/files/vertical_aerial_photography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0069/0848/files/belopunekopozigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7670/4664/files/metuzomeniwuwud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4229/9295/files/anniversary_wishes_pics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/30969386755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/89719839728.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_off00004f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F15 5192 bytes
SHA-256: e12219bb03cce5b7e9bd359a040bb7896b3962c9d61b672284dfbebd4029e149
font_01_sfnt_off0000608f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608F 10528 bytes
SHA-256: 23f69561d4f941059252ff34d5601cf03c0752c926ef5854e658f09e9c788714

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