Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f679b4d13a938d4…

MALICIOUS

PDF

46.5 KB Created: 2020-10-29 03:45:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bf0ab21e207411f6d05822c3e822de7c SHA-1: d7c84eeeac427bdf23ea8e173e1a952fd0cd66a8 SHA-256: 7f679b4d13a938d47a129c7ef01e20c45ddab75a2a2cabf4feecabaf0dda73e6
114 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://gettraff.ru/strik?keyword=town+of+duxbury+beach+sticker In PDF document text
    • https://cdn-cms.f-static.net/uploads/4389074/normal_5f8f6c6e6eed5.pdfIn PDF document text
    • https://jaketomerinojox.weebly.com/uploads/1/3/4/1/134109184/2412214.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f8f522e9b4b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426957/normal_5f98034234995.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382966/normal_5f8f6d1493c9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_5f8b38bc50755.pdfIn PDF document text
    • https://nulosogitizibe.weebly.com/uploads/1/3/4/3/134317173/1e41d5c62.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/1/0430/5911/8229/files/gogitivezusebegeful.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/254e09cd-a5f6-4dba-a975-09e9fed9cdc1/fogafakizilepufowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd01e5b6-72a5-4b80-a31b-3afe23a131cb/88345996828.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/asociacion_civil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3515/9456/files/do_howler_monkeys_have_thumbs.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/nj_bill_of_sale_for_car.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/lodixaturafukel.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/cerebral_palsy_articles.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/sububawevofam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5785/4632/files/5118174127.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9de72a2-6dfe-4fd1-ab4c-01d0d2cebdce/23428994298.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/mosapoxugaresos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/2386/8319/files/jirixufawanevomutisituvit.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/kesim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5020/files/14745961041.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_off000073df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DF 5492 bytes
SHA-256: d09a4ce893273566707474f1237980f17c769d4cee4b9fbf60395b884afb8675
font_01_sfnt_off000086a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A1 11008 bytes
SHA-256: 0d25943193e7f4f05d43ff2f527cffe56228382c66d6484c1baf924afa713789

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