Malicious PDF — malware analysis report

Static analysis result for SHA-256 22c15ade5017813a…

MALICIOUS

PDF

39.3 KB Created: 2020-08-04 11:32:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b136462536f7f26502e11cd06461612 SHA-1: d91bccfaaf83c3036ab7ef53999686d0697bd9cb SHA-256: 22c15ade5017813ad860eb2b61bc2adbff9f6d726b2c34c133916b6a6b5c2739
194 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, masquerading as an application letter sample, to a redirector URL. The primary malicious link is https://ttraff.com/pify?keyword=applications+letter+sample+pdf, which is a known malicious redirector. The document body is heavily obfuscated and contains numerous embedded URLs, many pointing to Shopify, likely as part of a link farm 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=applications+letter+sample+pdf In PDF document text
    • http://files.solodarchi.com/uploads/1/3/1/1/131164157/podumu.pdfIn PDF document text
    • http://files.candleandbodyshop.com/uploads/1/3/2/7/132741334/4150313.pdfIn PDF document text
    • http://files.theforest.co.in/uploads/1/3/0/7/130776485/futupitupetonesoko.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/1/0427/6345/2583/files/norafolibogawajudubir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8145/8069/files/82513707765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2197/1104/files/purple_skull_trooper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7951/4777/files/repair_manual_270962_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/45608734368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/jaboriponetuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9151/6828/files/futatupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8651/9195/files/dofemamapufutemife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/68499507328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/78633108736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/49874732071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/66121060647.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_off00005d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D19 5288 bytes
SHA-256: 370be73e73f565783b098d37e4dcc841c8a0ca70fc8656cc54901d911b16d1ba
font_01_sfnt_off00006efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFE 9824 bytes
SHA-256: 64fc8b7829f288918fc5a7487af9d7eae60dd50ddb23057a247c20d85e56d6fe

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