Malicious PDF — malware analysis report

Static analysis result for SHA-256 9069003e387e30e5…

MALICIOUS

PDF

40.5 KB Created: 2020-08-16 19:26:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a93821f261cbf8d59853cd5d31455bc3 SHA-1: 3c9cff24bd7be1bbfea0138973da6a93619a51c4 SHA-256: 9069003e387e30e537f65c14a0f3b73394b9b360dcd281b1dc89b4a38605c341
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'biochemical engineering major information'. The presence of a PDF link farm heuristic further suggests a malicious intent to distribute links to potentially harmful content. No scripts were extracted from this sample.

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.ru/pify?keyword=biochemical+engineering+major+information In PDF document text
    • http://jozitopeg.i2cafe.com/uploads/1/3/1/6/131606346/numavikexikob-dipizukum.pdfIn PDF document text
    • http://files.sammycharytoniuk.com/uploads/1/3/0/8/130813054/1623169.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/1/0431/4297/1553/files/49976160627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/bupikogelulosisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/gunigifog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9885/7891/files/android_settings_put_secure_sysui_qs_tiles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8688/6552/files/ebook_reader_fr_farbige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31995481059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4349/5842/files/low_carb_vegetarian_food_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9624/2331/files/calidad_definiciones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3038/0698/files/81732831698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5352/6690/files/ornamental_fish_farming_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/86421529557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/28501159073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9710/2238/files/alternative_dispute_redressal_including_arbitration_act_bare_act.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_off00006089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6089 5240 bytes
SHA-256: f55433d29a8c5d5e784f1f35293b9c0cf0fc05d725047b48129ec855e2f37150
font_01_sfnt_off00007239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7239 10268 bytes
SHA-256: 6ce90f35463368022dd7fd55d34b20797803ba06640ceaa29421749b4b4c71a2

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