Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e084744c70d9aa9…

MALICIOUS

PDF

43.4 KB Created: 2020-08-21 10:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3eea4b9d3357e85efc18c639843f3b4d SHA-1: 10c8ba03e1f72ff07da48d0c708c2b983aa8cec0 SHA-256: 7e084744c70d9aa9b18da8c2375618d49362b885ccaaca5f773c937db1b69207
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to what appears to be an SEO link farm designed to distribute malicious content. The primary lure is a fake "Samsung gear app store apk" download, which redirects to a known malicious URL. The ML classifier strongly indicates maliciousness, and the structure suggests a phishing or malware distribution attempt.

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=samsung+gear+app+store+apk In PDF document text
    • http://nujataze.finddani.org/uploads/1/3/1/4/131437254/naxepumabuwewi.pdfIn PDF document text
    • http://files.high-horse.co.nz/uploads/1/3/1/6/131636927/c5ca1.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/1/0427/6781/0726/files/31726624767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4241/files/workout_program_for_weight_loss_and_muscle_gain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7162/5621/files/98135744213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0644/1110/files/chronic_charcot_deformity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4439/7471/files/66732189496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7916/3285/files/leadership_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4184/8470/files/examenes_cae_con_soluciones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8098/8310/files/raxosudezisawezewexon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7804/1244/files/47235734262.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54BA 2880 bytes
SHA-256: d3a0dbfaf178ad573099393907cd19a5ab7041e05258d14d89bf20e04e50ed96
font_01_sfnt_off00005ee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE9 5108 bytes
SHA-256: 7e21d71146e1cd73401c27476e45c5afc1752b5f024524f3383148a8965a26fc
font_02_sfnt_off00007025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7025 10120 bytes
SHA-256: d7a3d61a0b10deb7df8e01922b8dfb00eae369dd949ebed5efea84b889768a02
font_03_sfnt_off000092be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92BE 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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