Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bbfd3b48f006831…

MALICIOUS

PDF

39.1 KB Created: 2020-08-18 16:32:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4ea7f2f9e6e4743f9695dcf51d45d4b SHA-1: 55f1d460008f56abc84ebaea8694384fd4713644 SHA-256: 2bbfd3b48f006831f7669385eda7d131b261972a82f4814e5e5da632458c142c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bungee+jumping+video++free'. This URL is presented within the document body, disguised as a free video download lure. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML classifier also strongly flagged this PDF as malicious.

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=bungee+jumping+video++free In PDF document text
    • http://files.carlosplusplus.com/uploads/1/3/1/6/131636954/fodesinonar_pukezoze_texuvojubog_giwujobuk.pdfIn PDF document text
    • http://files.krishyoga.com/uploads/1/3/1/0/131069904/3929698.pdfIn PDF document text
    • http://files.eatsugarsalt.com/uploads/1/3/0/8/130813409/galekazasobubimepux.pdfIn PDF document text
    • http://files.chartierpropertymgmt.com/uploads/1/3/1/3/131379540/4a3626593c1c9.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/1/0438/8945/9368/files/reorder_pages_adobe_acrobat_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5639/7464/files/11273939972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7932/6103/files/lubosufuketolipubojuxogit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/29864580078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8801/8594/files/jizebuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4445/4051/files/gazanojosazasofip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1682/1672/files/48443133361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4136/9761/files/xadexuviwarixevugibar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/roporepegudosuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13652925252.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 4

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_off00005cab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAB 5128 bytes
SHA-256: 3a40ad94a76499520be2045a53df3f93efca31a5b96d387c5658c0b8f1136433
font_01_sfnt_off00006e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E18 9784 bytes
SHA-256: 67c3a410970e843402fae90f78bc2818ba6e08b41ec7544e42bcf7717263599c

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