Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed2f1261c113ff1…

MALICIOUS

PDF

43.1 KB Created: 2020-08-07 04:50:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34e9350bd1fa64aa4b4a693022357b32 SHA-1: b4d2ccabe5c153eb7679ddfe829b0d96671c031b SHA-256: 7ed2f1261c113ff1b0ca83069eea9d4f3a542a9fde1c1fc1b7aabc34566a71ec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm designed to trick users into downloading further malicious PDFs. The ML classifier strongly indicated maliciousness.

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=bohemian+rhapsody+partitura+guitarra+pdf In PDF document text
    • http://files.royaloakgsrp.com/uploads/1/3/0/7/130775619/koxedadirijilif.pdfIn PDF document text
    • http://files.annamckerrow.com/uploads/1/3/2/6/132682290/fegutadepedemeri.pdfIn PDF document text
    • http://files.inspirationaltalentmanagement.com/uploads/1/3/2/7/132740249/3181343.pdfIn PDF document text
    • http://files.velobristol.com/uploads/1/3/1/3/131380895/papugiwof-lavadeb-fonalidi-judojabizo.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/1/0431/4038/2882/files/puledafan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2146/5757/files/manalupasuvuziwawotaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2641/5779/files/american_standard_heritage_12_heat_pump_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3532/0742/files/akame_ga_kill_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/45102364115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3603/3695/files/97780357673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/86461294601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2718/3269/files/puladotenepujiludatip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/33249356097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4516/5975/files/kijibopomavevomim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/45079527237.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 3

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_off00005c6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6A 5576 bytes
SHA-256: b08703a4316140e733ae63adb457e56c63435b954fb20bff72a37eeb8a248ef0
font_01_sfnt_off00006f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3F 15588 bytes
SHA-256: cd1585efbc052cf05b344e568632aa2fde2bd56723859ab09a4b2d44a445ea98

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