Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0b5c68c82a941d…

MALICIOUS

PDF

40.7 KB Created: 2020-08-23 06:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef66cbdad732a4d16e855b0f84d5d529 SHA-1: 9e575c4d6ac723639039b68e47c989e7dfbe31b9 SHA-256: 7a0b5c68c82a941d76037f4c31432c891980323aac42490a9f2d93af163a4eb2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one to a known malicious redirector at 'https://ttraff.cc/pify?keyword=harvard+reference+style+guide+utas'. This redirector likely leads to a phishing or malware distribution site. The document body and embedded links suggest a lure to download further content, potentially a second-stage payload.

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=harvard+reference+style+guide+utas In PDF document text
    • http://files.coronagoldensandgoldendoodles.com/uploads/1/3/1/4/131406369/af978076e.pdfIn PDF document text
    • http://nodufawow.stellarinternationalnetworks.com/uploads/1/3/1/3/131379070/2574676.pdfIn PDF document text
    • http://files.costaballenamanagement.com/uploads/1/3/2/6/132681479/xegivol_wunigevuduwupa.pdfIn PDF document text
    • http://geduxes.alicebeecherpoetry.org/uploads/1/3/1/6/131606490/wijixuxanabagarirufo.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/1/0430/7995/8679/files/93497519234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/55478652904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/59231785467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7328/4769/files/ingredients_in_cigarettes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/pig_latin_to_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/political_psychology_noun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6343/3621/files/39706009272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8447/9641/files/60625911603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/lojuwitamizama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3693/7125/files/vios_l2-_adventerprisek9-_m._ssa._high_iron_20180619._qcow2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8299/8170/files/honda_300_fourtrax.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 3

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_off00006089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6089 5312 bytes
SHA-256: e83f7e78b794deaf09ed5041980f7eb14e1f2f1089f62270dd224c89acd65cdd
font_01_sfnt_off000072b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B4 10472 bytes
SHA-256: 4dc6472367fbc3289508b76f859d8904628a628d8b112e6322c89ae3fea50c54

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