Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a8918fde198b2b9…

MALICIOUS

PDF

48.5 KB Created: 2020-10-31 23:21:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9679d7d59c9e401886e5b6d22d3e47f2 SHA-1: dafa2620e159f1db01fe0313aab3660965b81520 SHA-256: 0a8918fde198b2b9e390712c31a8fc4f5e70c9295be124932c6b310b3c9da844
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://cctraff.ru/strik?keyword=avital+4113+installation+guide In PDF document text
    • https://xonimitofowe.weebly.com/uploads/1/3/2/6/132682232/patevenebepil_fugape_rojoxirukali_gabixosogagi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0497/1485/6097/files/income_tax_increase_illinois.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2147/5738/files/kapapusigafuxizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6386/8573/files/transformar_arquivo_em_para_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1541/6219/files/stunt_jumps_gta_v_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d4d114e-8a8f-4fa1-b310-df456530f183/ginekinekakonavet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc325fd6-1f41-4a27-8b50-e92fa00be83d/65122788996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/8280/6964/files/lilowakasotukuxuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d48b9de-1abe-458c-b685-01f01508593c/bufuzufijet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0909/6861/files/study_skills_for_dummies_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/1592/1818/files/audio_power_amplifier_design_download.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFC 5132 bytes
SHA-256: a994d6e531ef1f3b1943a4a6dad91e29f172292bcaf29527a83db57b61f72161
font_01_sfnt_off00007d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D89 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00008616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8616 9572 bytes
SHA-256: 4344f5c431be67319a2e33e1b8c45405dc41d5984e712aa4310a414378db0683
font_03_sfnt_off0000a704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA704 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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