Malicious PDF — malware analysis report

Static analysis result for SHA-256 abf1d27fab22d478…

MALICIOUS

PDF

40.4 KB Created: 2020-08-23 11:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4fbda670ddb9781f3ab5d57d4db346b SHA-1: 7bb93fe5a906893333c64daab2a257094f8d804b SHA-256: abf1d27fab22d478b2d76cf24d6aef349cf834692ecb39cbd403285950268b29
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, specifically pointing to 'https://ttraff.cc/pify?keyword=animated+knots+apk'. This URL is likely intended to lead the user to a malicious download or phishing page. The document also contains a large number of embedded links, many hosted on Shopify, which is flagged as a 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.cc/pify?keyword=animated+knots+apk In PDF document text
    • http://files.donnamartelli.com/uploads/1/3/0/8/130813416/3995559.pdfIn PDF document text
    • http://files.rebeccanehringpainting.com/uploads/1/3/0/7/130776046/363b8e0b829aadc.pdfIn PDF document text
    • http://gagozaf.sevenlayerarmy.com/uploads/1/3/0/7/130739006/91784ea1179425.pdfIn PDF document text
    • http://files.clothesforallweather.com/uploads/1/3/1/3/131381109/77bc4407ce25e.pdfIn PDF document text
    • http://lewot.zippydogsagility.com/uploads/1/3/1/0/131069992/6378546.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/1/0430/8120/3861/files/2016200603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/bisedopuriduwodubijixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2371/8824/files/80046155555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6906/3836/files/tuzevekoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9815/9769/files/65807830348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9272/9246/files/modarosop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/lumipiwuxigip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6879/0686/files/29746878187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4844/9701/files/side_effects_of_nsaids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/futikuzazojexopuvenewipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4141/5587/files/35965265411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/wild_n_out_episodes.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 4

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_off000061e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E2 5032 bytes
SHA-256: 0d051086f06635e247ff2a6926c94dd70a367415dee413b96c934ac819fd4a2d
font_01_sfnt_off000072e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E3 9944 bytes
SHA-256: d9048bfdbd1514a43aca0a3e00c6e163f563085d06ed9ba882f0c403a861c2f2

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