Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad7d840912d250d…

MALICIOUS

PDF

65.8 KB Created: 2020-08-04 15:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61564e9e757bdd481859b04b5802e9b0 SHA-1: 39553c6fb155fb612a75aff52e119f2d16db20c3 SHA-256: 8ad7d840912d250dd6f0d7991e7a86f219e246dd20d51298d2de72a9c57ac4dc
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a redirector URL, indicating a phishing or malicious redirection attempt. The document body, though heavily obfuscated, contains the target URL. The heuristic firings confirm the presence of a malicious redirector link and a link farm within the PDF. The primary malicious IOC is the redirector URL.

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=neoliberalismo+breve+historia+del+infierno+pdf In PDF document text
    • http://files.tamrisfarmnubians.com/uploads/1/3/0/9/130969129/6980725.pdfIn PDF document text
    • http://files.dmcicondosales.com/uploads/1/3/0/8/130873781/jowanodikamewotal.pdfIn PDF document text
    • http://files.popculturehoard.com/uploads/1/3/0/7/130776619/letamewef.pdfIn PDF document text
    • http://files.communitychoice.us/uploads/1/3/1/4/131409090/efa02.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/1/0434/9178/6918/files/46821037343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0419/8044/files/34942511398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7073/2950/files/14556387420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9696/4261/files/5902324548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/grapeapplesauce_texture_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/bonubixisoguxezex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sarexomerowomowubufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0449/3987/files/62494437691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0935/1585/files/22841580167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37237973095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1377/files/zosakojamawisubazaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4990/0439/files/b1_english_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9590/8761/files/miper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63545483179.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: soap-architects.com 7 samples

Related samples 5

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_off0000bdd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDD5 5448 bytes
SHA-256: 1f9eb867242fa2af55ce6bbb8833dd0bc83705acc96678c18a2d0d604385e61e
font_01_sfnt_off0000d036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD036 12256 bytes
SHA-256: 0e1b929c8ec40371dc8f8d12be82129e73e501cd5501472d13f4921d83b68d93

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