Malicious PDF — malware analysis report

Static analysis result for SHA-256 51bc29957bec9308…

MALICIOUS

PDF

42.9 KB Created: 2020-08-01 06:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff58e348e391cedab1281fbb05ead1ca SHA-1: 0a34d0221c9e3fb259c73487dc051426ec1e0051 SHA-256: 51bc29957bec930835b502a2f78015a37b94faa554127936f2f6ccf70ba2aebd
234 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com' with a 'power cooker manual' keyword. This indicates a social engineering lure to entice users to click the link. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation or to host further malicious content. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=power+cooker+manual In PDF document text
    • http://files.freedomheroesusahealingsanctuary.com/uploads/1/3/1/6/131607005/retutiretezese_gezani_weronobedetuxo_xarozo.pdfIn PDF document text
    • http://files.pioneervalleykennelclub.com/uploads/1/3/0/8/130814101/tikodokewido.pdfIn PDF document text
    • http://files.legacyautollc.com/uploads/1/3/1/3/131379732/zotuvomobakiwozi.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/1/0431/5276/9192/files/mavipozerakuneduvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/59365091296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1424/files/84671213021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/zejuzudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4219/3058/files/dopevup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5300/files/ark_dye_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/65686720125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedapefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3380/5471/files/95095216932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5926/3141/files/sibuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/72007710851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4430/5056/files/43731703166.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE0 4924 bytes
SHA-256: 44da3f69a306576a95b6054c64979b6f479fec6568087abf94cf1d0b896b350b
font_01_sfnt_off00007ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA1 10440 bytes
SHA-256: ae36ee4be9305639ba5a02446b742c1242c0572984358a4cd4bdade2e84f498c