Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fd9c9090c60fff7…

MALICIOUS

PDF

38.9 KB Created: 2020-08-23 07:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56bfc4a32b1f0bb09eccd856e3742d2f SHA-1: b5eaad1c7208074b91f6dace5098110a87a31565 SHA-256: 6fd9c9090c60fff7abbb5af0652970f222db45111b30b8d2bdf47a64d4ddb235
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a primary link leading to a redirector associated with malicious activity. The document body text and heuristics indicate a lure for a "spotify premium account generator apk", suggesting a phishing or scam attempt. The presence of numerous external PDF links also points to a link farm strategy, likely to improve SEO for malicious content.

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=spotify+premium+account+generator+apk In PDF document text
    • http://denupob.davidstraange.com/uploads/1/3/2/7/132740930/3978507.pdfIn PDF document text
    • http://files.mlkgrandjunction.com/uploads/1/3/1/3/131398125/wowowe.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/1/0436/5982/1209/files/51541661800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0561/files/cardiovascular_system_physiology_mcqs_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8511/1203/files/68621010832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5488/3231/files/actuadores_electricos_y_electronicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/gozugegotulakigupena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/57610377087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8392/2585/files/usps_business_change_of_address_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1152/9114/files/kuxasivizaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7696/6808/files/putekewa.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 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_off00005a8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8A 5392 bytes
SHA-256: ddfe77ce130a91ca1e96544f975e7cec86d2b5c7ce44acd4881eebcb76f58c37
font_01_sfnt_off00006cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDB 10004 bytes
SHA-256: 4c233a6139490df0ec8ecdee47552d9bbed87aa73099e9a87b97a947edafe2a5

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