Malicious PDF — malware analysis report

Static analysis result for SHA-256 1204f7a74b15207a…

MALICIOUS

PDF

53.2 KB Created: 2020-08-02 10:06:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0292aac7fb229e1acee3ebc507a38b8 SHA-1: cdbb09d1fb9723e57a1c246ec2ddf28182846e0f SHA-256: 1204f7a74b15207afd5bedd15ab78b7f5c18df6612887ee11f0ebc3e71731976
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many of which point to a redirector service (ttraff.com) known for malicious activity. The presence of a link farm and a malicious redirector suggests an attempt to distribute malware or conduct phishing. The ML classifier also 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.com/pify?keyword=tecumseh+carb+identify In PDF document text
    • http://files.thevillageyarnery.com/uploads/1/3/1/4/131437119/jigutesapirulipo.pdfIn PDF document text
    • http://files.oscargil.org/uploads/1/3/0/7/130775032/3779247.pdfIn PDF document text
    • http://files.zionpainesville.com/uploads/1/3/1/6/131636819/cb4a2a042f36e.pdfIn 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/1/0430/7661/6346/files/2801683570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8375/0814/files/92539673454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/mutasojupiwomofegezizoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2353/0141/files/77348129055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/sosojowulagugeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9794/7300/files/xowukir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4732/0728/files/96188495519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7388/0739/files/joxizuxasopunojinexox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6501/5446/files/pawoxusemijud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5208/files/6041220727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesulemenakasisot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5280/0920/files/17704318049.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2C 5192 bytes
SHA-256: 23eb61d4d28366df3170c8bf2647064f91f47e0c64a6803c90e9991aa158c76a
font_01_sfnt_off00008eac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EAC 13304 bytes
SHA-256: 6ff7f9b2578ccd86c53ce1dfb18ca9ce37e03aefc865c584a90d65a2600abe6b
font_02_sfnt_off0000b80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB80A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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