Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf2ae10ffadc0173…

MALICIOUS

PDF

42.4 KB Created: 2020-08-23 07:52:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5dcba2bc0241883a625a185ab42e1f5 SHA-1: bb884f58bcda8799b927b442814e3185e11d277d SHA-256: bf2ae10ffadc0173d625c5a4122da5d78e620fd3f165ab86e6864f90d99dd4c2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify`. This URL is used in conjunction with a lure related to 'Web of Science' citation reports, suggesting a phishing or scam attempt. The document also contains a large number of embedded links, many hosted on `cdn.shopify.com`, which is flagged as a PDF link farm. 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=web+of+science%25E2%2580%2593+incites+journal+citation+report In PDF document text
    • http://mulik.ashcancomicspub.com/uploads/1/3/1/6/131606505/1860258.pdfIn PDF document text
    • http://zinoko.literacyinbalance.com/uploads/1/3/2/7/132741389/e32f0c1e4c7d6.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/1/0433/0687/7080/files/kiragin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6901/3158/files/rozusit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6334/5301/files/husqvarna_hu700f_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/sijozixarutozubibezete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/entergy_arkansas_outage_reporting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9839/7085/files/vevirunorofemuzabavituros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0678/6725/files/spider_gwen_comic_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2889/6161/files/crossword_answer_for_midday_repast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/59141854179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2020/5726/files/60606730386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/95997237892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/jomiwafosokodow.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 1

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_off000064b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B5 5272 bytes
SHA-256: 7d23ea7745d4fa68af059472fd3ac05bb161b49302870ad271418d879334d6ad
font_01_sfnt_off000076be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BE 10316 bytes
SHA-256: 2c7d4f05acba84b51964bdf1056d4ae7cf43543571e4c4c668b8982f294b197b

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