Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e53697cb3b22581…

MALICIOUS

PDF

40.0 KB Created: 2020-08-22 21:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0771680b4fef1da69cefa14279998de2 SHA-1: fb60f29eada03d656c4ad72eeee12e54a061d81e SHA-256: 8e53697cb3b225818823cba80f3ea8ef85265fcf81c31ae58d5b7d59f01db1fb
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=afjet+afyonspor+formas%25C4%25B1, which is likely used to redirect users to a phishing or malware distribution site. The document body contains garbled text and a reference to the malicious URL, further supporting the malicious intent.

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.com/pify?keyword=afjet+afyonspor+formas%25C4%25B1 In PDF document text
    • http://files.centralcitychamber.org/uploads/1/3/2/6/132681536/kafeliwesifiwov.pdfIn PDF document text
    • http://files.millard-and-kleinsteuber-histories.com/uploads/1/3/0/7/130775892/vobozukibisusi_wusiro_titexawibap_zanipozezupafen.pdfIn PDF document text
    • http://nakulare.brandito.net/uploads/1/3/0/7/130776008/c0512094658.pdfIn PDF document text
    • http://files.plymouthfirstsaturdays.com/uploads/1/3/1/4/131452733/6625168.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3016/7202/files/58445189327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/9955640005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4870/4920/files/overhead_cable_tricep_extension_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4678/8502/files/losujewamigolufinivenej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/wifesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/26473789224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3931/files/wugopoluxujerivasili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54440827626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/didusazazowoxamok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/what_is_an_example_of_sophistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3090/2946/files/pharma_interview_questions_and_answers_for_freshers_free_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D91 4956 bytes
SHA-256: 8d26266a1f895ef1e33c6c38702c7d1581e26ed5f9aa172349c8a30fe1c003ec
font_01_sfnt_off00005e67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E67 11916 bytes
SHA-256: 4adbc9731d08dc8999487793d8438e062085ab979cee9c6a6e92b7a431cda0d2
font_02_sfnt_off00008365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8365 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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