Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b5d8d12c1e3afba…

MALICIOUS

PDF

49.8 KB Created: 2020-08-22 04:32:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c2871fee09049b6b685aa40935279e3 SHA-1: 7573ff9c1cf1b9dacaf6019fe9a1c51935a517df SHA-256: 8b5d8d12c1e3afbaecb69e4413ed2d2e6579ff854714d81920b62c842dcd2ab0
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=video+helper+license+crack'. This URL is likely part of a phishing campaign designed to trick users into downloading malicious software or revealing sensitive information. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse for distributing malicious content. No scripts were extracted from this sample.

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=video+helper+license+crack In PDF document text
    • http://files.rumah-indonesia.org/uploads/1/3/0/7/130775516/5c4fa49597596.pdfIn PDF document text
    • http://goribeluj.anchoragewindowcleaner.com/uploads/1/3/1/4/131453068/7713266.pdfIn PDF document text
    • http://files.deltasurveillance.com/uploads/1/3/1/6/131637529/peweludowib_somenifomofego_lelegitosope.pdfIn PDF document text
    • http://files.eastoncapital.com/uploads/1/3/2/7/132710794/lezupudinawoje-tonizurabebu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1306/3327/files/zejamudefifab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1057/9865/files/54998797381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/91775403595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5349/5958/files/achyutashtakam_in_kannada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/life_of_apollonius_of_tyana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6439/2866/files/januminularuwufetixivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/watch_american_reunion_free_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/moxojikifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/28483540294.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A7 5188 bytes
SHA-256: 2237b89d2b6f5b1dc302088a2f7f4ab159e5065488f88fa6b2e847cfd88f82fe
font_01_sfnt_off0000873a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x873A 10696 bytes
SHA-256: 717ffa4668addfdaad90d118cd22d80cae2cd21d80e7e7865c25e69816643272
font_02_sfnt_off0000abfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABFB 3616 bytes
SHA-256: 2402cfff880105a2fa3329dbea75fcffd9d9984efccc44c4611d2ba391613fad