Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc1902c72b54133b…

MALICIOUS

PDF

48.9 KB Created: 2020-08-10 21:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77ddf551e46c813d511a185d2f394f30 SHA-1: aba286619621624d5c50bafeb539ff183ee37dbc SHA-256: dc1902c72b54133b01258e797a51e9591ccaaf4f26685b6d022e6c42e445b8b0
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a 'car safety checklist pdf' and the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a link farm for SEO manipulation or to host further malicious content. 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=car+safety+checklist+pdf In PDF document text
    • http://files.mylocalpilates.com/uploads/1/3/0/9/130969481/f829f52ad31f733.pdfIn PDF document text
    • http://files.peopleinpublishing.com/uploads/1/3/0/9/130969231/5138662.pdfIn PDF document text
    • http://files.happy-cow-bakery.com/uploads/1/3/2/6/132682904/gefunagubofoz.pdfIn PDF document text
    • http://files.wisdomoftheages.biz/uploads/1/3/0/8/130873718/xazed.pdfIn PDF document text
    • http://files.renewedreloved.com/uploads/1/3/1/4/131407179/lexodisigoj_tawanotenital_tomuzalunipi.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/1/0437/9148/3041/files/mibivaril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/xeluwamunafegopok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/letelob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0845/6865/files/susirisovipefutifewinamif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8178/4734/files/talk_like_ted_carmine_gallo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3501/7884/files/bavulanolewetaraxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/bibibaxonis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/wugilubajulod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/lusapafodikesudatuwagad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/resozelofik.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 8

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_off00008247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8247 5316 bytes
SHA-256: d227ebf7bb9f301e26cdc99e7c021881eb620ed97708143492bce8daedcb0c8e
font_01_sfnt_off00009458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9458 10028 bytes
SHA-256: 68c8ced106b70a418b7c0962e850718d93da33bd2a2c16b89ad49411b808fe1f

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