Malicious PDF — malware analysis report

Static analysis result for SHA-256 646b88937d27f394…

MALICIOUS

PDF

47.5 KB Created: 2020-10-26 22:13:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f29891b680a6c63f90a6e14e676c9aa7 SHA-1: c08678638a6d72a57c680b46c2cf25e94cda0308 SHA-256: 646b88937d27f394ba6decfdab2c27ac74880177d905e7fb60fc7e54f59f6801
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a malicious redirector link. The embedded URL, https://ggtraff.ru/123?keyword=illinois+state+flower+tattoo, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware site. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing or redirection attack.

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://ggtraff.ru/123?keyword=illinois+state+flower+tattoo In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368969/normal_5f87a78a65261.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368950/normal_5f88ac1835e13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5f88a6771a600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369498/normal_5f91c6f113f2a.pdfIn PDF document text
    • https://rijizego.weebly.com/uploads/1/3/0/7/130776487/7527908.pdfIn PDF document text
    • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/f8d999cf.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/689284.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3ca98e7-4b14-4620-812f-76f4d794be43/brazil_song_dhol_mix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65823167-163c-44a2-a506-b766edd26b2d/best_storm_pet_wizard101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94fef68e-0278-4c77-9db2-8c6ca00c8c98/19465818318.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd6c7058-5e63-4f2d-a3e2-6c5454a0f69e/71283375880.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9a605a2-d3f8-40b0-9c3c-ebe276de5584/weberuxaxab.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/20716449167.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/takofiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1283/2931/files/kovuboladivofaguluguzalev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3357/5075/files/30429022797.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_off00007bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBB 4792 bytes
SHA-256: e7e9d023a0105da141260e8f22048486ca848e124842b8ed495255d81c920eab
font_01_sfnt_off00008c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C20 10776 bytes
SHA-256: f228cc29fde5c1df6682e7fe924fdd6e57fd2231adeeba0abc0d96c48625d9ed

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