Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b674d2e97c2cbbe…

MALICIOUS

PDF

46.1 KB Created: 2020-08-23 14:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45f3a47c76cd9302c1f4bb6e92e0f1a0 SHA-1: 7c5e5f98c6445d9d00307df47b987483e7310dc8 SHA-256: 8b674d2e97c2cbbea61d422b1ae93d45ce8e62c2d8605a9f3c89faaadf16f536
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains a reference to the same malicious URL. The presence of a 'download button' heuristic further suggests a lure to trick the user into clicking the malicious link. The PDF also contains a large number of external links, many pointing to Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the true destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=email+newsletter+template+html+free In PDF document text
    • http://files.arholistichealth.com/uploads/1/3/1/0/131071063/4946781.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/1/0438/3450/7426/files/73916464382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/pabibumubogedifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/fpsc_challan_form_bs-_17_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8714/9733/files/nifaturipazukizewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/vizisifowitaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8434/8569/files/kinasukewivusurupepegoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/devefabot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/59294410958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6763/5867/files/51377471106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2922/4857/files/curious_george_story_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/zozabiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/39330333787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7398/4919/files/xejogesufoxumowezuv.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
🗂 Part of campaign: shared payload 92eeed44f1 3 samples

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_off00007594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7594 5188 bytes
SHA-256: 8a6e2ce0490e66735903c267214d7c50a6d3f7fcb9c28ac0d1113ccdebc5adfd
font_01_sfnt_off0000871a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871A 10636 bytes
SHA-256: 92eeed44f112fb77a8f5956f864e897d72e8b40e3fafa47d1917fc945788280c

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