Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b07c13f8f9c26d5…

MALICIOUS

PDF

53.0 KB Created: 2020-08-18 20:17:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63ea3b722230a421770f9aad20958f99 SHA-1: c81b24bb65b2d11597661788b006ba12be229820 SHA-256: 6b07c13f8f9c26d574b49b4cd961bac517e63a9003a3cab7e1fcb2f207b5dfc7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links that redirect to a known malicious redirector, ttraff.com, disguised as a free expense sheets template. The document body, though heavily obfuscated, contains references to this lure. The presence of multiple PDF links, many pointing to Shopify, suggests an attempt to create a link farm for SEO manipulation to distribute the malicious content. 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=expense+sheets+template+free In PDF document text
    • http://nufepesiv.shivanirustagi.com/uploads/1/3/0/8/130873825/3c0c885f6.pdfIn PDF document text
    • http://zoguj.smalltalk-maadi.com/uploads/1/3/1/3/131384284/8711a8f.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/1/0447/6397/1733/files/10934530163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3350/0565/files/72504938079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pawatofamilafal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6682/6656/files/risotuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/85636265660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/44174844430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6186/9733/files/sovutezajisamapak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6464/6042/files/69063907065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/arm_microcontroller_lpc2148_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6881/5528/files/skyrim_special_edition_nude_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8173/files/xemulipovezukilebibupowiw.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 1

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_off000091f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F5 5164 bytes
SHA-256: 290d35591aef62444c1f369f7b70e8d4d1f4c0f84c0a4c5b03f301ee507b5156
font_01_sfnt_off0000a35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA35C 10416 bytes
SHA-256: 75ff75c3daf362db1994b3f721aeef48a8f6d67269fce23ac7653190e54dfec0

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