Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f381c1964bb01ef…

MALICIOUS

PDF

64.3 KB Created: 2020-08-26 14:00:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 412e0acabf1fe94290bad1f2738c51aa SHA-1: 0d2ee12e76f83d0abb8a92452973a6dcc58c2931 SHA-256: 2f381c1964bb01ef85fbb1e83d8d8bb743b0631dd30b7d7602402543122c3285
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify and appear to be part of a link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the same URL and a reference to historical criminalistics, likely a lure to entice clicks. The presence of numerous PDF links suggests a campaign to distribute malicious content.

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=antecedentes+historicos+de+la+criminalistica In PDF document text
    • http://topidatax.ccwaite.com/uploads/1/3/0/7/130775422/19f32850.pdfIn PDF document text
    • http://files.fitmalahide.com/uploads/1/3/1/3/131379296/6347244.pdfIn PDF document text
    • http://files.simplymello.com/uploads/1/3/1/3/131398428/1343.pdfIn PDF document text
    • http://files.tomcondotta.com/uploads/1/3/1/0/131070792/c08bb10cec19838.pdfIn PDF document text
    • http://files.drtvetcare.com/uploads/1/3/0/7/130740298/2699529.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/1/0431/2154/1274/files/daduzajusubosakisonexug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/bully_anniversary_edition_game_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/gilopemibuwaranotobajizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/tilepowagikuxizokad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1641/9488/files/vuwudewenilutilijitovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5398/1594/files/replacement_hard_drive_for_hp_15-_f233wm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/sugusulenifarubewoberexub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/81989321056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5297/2697/files/33257070796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2386/5768/files/auditing_and_investigation_ican.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1760/8090/files/bitdefender_mobile_security_review_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/botabivupoxel.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 8

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_off0000bd7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD7A 5168 bytes
SHA-256: fa39a2b7b2d1c5c2875100c2a15b992cff4f1c1c8b954e83e78527d0e2940c71
font_01_sfnt_off0000ced3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED3 11564 bytes
SHA-256: 70bce07df8628927aee4e331c637c5f6d97044f807d1cf0e02e4f9fb8652d6f7

Open this report in the interactive analyzer, or submit your own file for analysis.