Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ecc817af7dd0cc4…

MALICIOUS

PDF

54.4 KB Created: 2020-08-07 02:46:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 088123b5beb483cfc3a18e9fdcaba42b SHA-1: 27d99ce5fc8d1654ef087fb9875afe7648bcfb84 SHA-256: 1ecc817af7dd0cc467a82249a127c530efbe5c4575b3ea3edcd0573b4640b85c
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector URL, which is a common technique for distributing malicious content. The ML classifier strongly indicated maliciousness. The document body itself contains garbled text but also includes the primary malicious URL and several other URLs hosted on Shopify, likely as part of a link farm to improve search engine ranking for the 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=boundary+layer+theory+nptel+pdf In PDF document text
    • http://zeditefu.philadelphiaeritreanchurch.com/uploads/1/3/2/7/132741555/221b27c1f5.pdfIn PDF document text
    • http://files.ballinloughgfc.ie/uploads/1/3/1/8/131856569/4284019.pdfIn PDF document text
    • http://files.yogadown.ca/uploads/1/3/1/3/131383544/maruse.pdfIn PDF document text
    • http://files.solanaenergy.com/uploads/1/3/1/6/131606072/a6872a12d.pdfIn PDF document text
    • http://files.theflourishsisterhood.com/uploads/1/3/1/3/131398156/95d18288fa830.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/60682860066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7556/7777/files/werupejivalomegaxikasev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3545/1804/files/41964860055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8565/8280/files/40333125289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/lunesuxowoxeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/46486747328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2629/files/6756962510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/nibizinogamoderalojojaman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4518/9794/files/podira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/osrs_gertrude_s_cat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0333/0209/files/safesuvibadonod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9961/7448/files/gopikumevoroxevuwut.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7291 5708 bytes
SHA-256: f29f190d69f0e25a8a55e22ccdf39e642c4d53aeb4170824a06b05c94e168afa
font_01_sfnt_off0000834d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834D 4936 bytes
SHA-256: 2b7e106f80d688c078b93bdea6ad6f49dcd5095898bbe94c3b44a147d1694b78
font_02_sfnt_off00009417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9417 13168 bytes
SHA-256: 57c4d717db144e9ac7b7f7556df65bf9f9e7f5d400a5cbcc807c6fa3ad889f0b
font_03_sfnt_off0000bdf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDF3 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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