Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff5f2630c779c50…

MALICIOUS

PDF

42.0 KB Created: 2020-10-27 07:16:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f389d44b5d484f37d6e089cbfc280249 SHA-1: 10122c4f83352697899b5b8337bfcf6b05dfd3c2 SHA-256: 7ff5f2630c779c502f215863c51ea2cd6640bf7b28b6b49325ac95e6abafd615
94 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. 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 3

  • 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.
  • 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/123?keyword=why+do+esters+smell+like+fruit In PDF document text
    • https://zosupexaduj.weebly.com/uploads/1/3/0/7/130738593/puvekuxa-zepewiraluluz-mofozolavidos-gusodedib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f87540f92a6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408701/normal_5f9351c28fe7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422640/normal_5f97172001653.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/1/0438/5921/4496/files/beyblade_burst_app_apk_mod_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4936/1314/files/69013029909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9300/9608/files/canon_eos_rp_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5198/2233/files/asepsia_y_antisepsia_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/agrarian_social_structure.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/everyone_s_guide_to_the_south_african_economy.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/neet_counselling_process.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/quantitative_approach_to_management.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/91742692134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0860443b-e040-4706-b399-b8b5282d5cba/vaxuvazanaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e270127b-3741-4a2a-ad4b-34f1b1e23d72/powefubovidanezipabexaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0bd7b85-5336-43b6-9959-00a3b4bc6f6d/komavugeladosepow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ea09128-85ca-430a-934a-ca8d431c724c/book_of_shadows_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/561ec7d4-c720-4fae-8f98-9f705432e9c4/wiluzamimabokib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6872/1825/files/munoxumojebonezenoxupuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8256/6811/files/6113993627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4502/7993/files/toefl_ibt_essay_samples.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_off00006597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6597 5116 bytes
SHA-256: 17dd0d69767b41e1788ff925b5f39b73f30470831c02bad6351a85a484dabbe3
font_01_sfnt_off000076e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E9 10756 bytes
SHA-256: 2f05a877a0c02ba0345ce274a34c400de270c92ad724a9615f80c8eaa43a377e

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