Malicious PDF — malware analysis report

Static analysis result for SHA-256 89cca45cd35fec81…

MALICIOUS

PDF

41.6 KB Created: 2020-08-10 05:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37ae8f80214342dcaf39e31492302a73 SHA-1: 596d00486bf870269651228e424457d7d93cb981 SHA-256: 89cca45cd35fec81699ec8cb43068a6c4d9d2c9461acecfa5e85f1db6afee918
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many hosted on Shopify. The primary malicious link is 'https://ttraff.ru/pify?keyword=branches+of+financial+accounting+pdf', which likely serves as a lure to redirect users to a malicious site. The ML classifier strongly supports the malicious verdict.

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=branches+of+financial+accounting+pdf In PDF document text
    • http://files.batrssocal.com/uploads/1/3/1/3/131384789/vipibifoxoteroxu.pdfIn PDF document text
    • http://files.mountainlakewinery.com/uploads/1/3/0/8/130874411/mirezeworedu.pdfIn PDF document text
    • http://budoz.antigonekoutalieri.com/uploads/1/3/1/6/131636948/zevus-donivus-lupeze.pdfIn PDF document text
    • http://zinadesi.dragonflycoulee.com/uploads/1/3/2/6/132681670/27a4b49.pdfIn PDF document text
    • http://files.engineersinmedicine.com/uploads/1/3/1/4/131452997/0eb80d43fb1fe9d.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/1/0428/1889/6038/files/sukotogob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/52618195584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/dosagixesavibaraganin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5976/3617/files/deficiencia_de_vitamina_b12_sintomas_neurologicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/vogupamara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4947/6518/files/dodufujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/judubiropidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/kisewalugatige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0596/8537/files/dagugexuter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/11430272290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7727/9652/files/liluwewerutebubuxim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/tagagaxileluxuvogesetulan.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_off00006710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6710 5468 bytes
SHA-256: e171fba401c808075d4b5b3d9c4106aa5681253cc4a7f0cda25ac23a2d1e96ee
font_01_sfnt_off000079a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A3 9244 bytes
SHA-256: 2d4a7c98e483dfb85d0a8a3bfbfa41392784277610199d5163208383ad96d765

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