Malicious PDF — malware analysis report

Static analysis result for SHA-256 686d24d38439382b…

MALICIOUS

PDF

70.0 KB Created: 2021-01-01 21:01:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9d60ed3f1e9577c66ac631dbbf7c0f7a SHA-1: bdc6ad6398e0f021771aac29b941a678735086b5 SHA-256: 686d24d38439382b98dfcece66122e52cdedfc14202f51e4e4152ba8407f87aa
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, with a primary focus on directing users to a URL that appears to be a search result for a trophy replica. This suggests a phishing or scam attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/strik?utm_term=ncaa+football+championship+trophy+replica PDF link annotation
    • https://cdn.sqhk.co/datagemop/iagfgOf/36694852605.pdfIn PDF document text
    • https://maxedojose.weebly.com/uploads/1/3/1/4/131452800/tibosofalimemi.pdfIn PDF document text
    • https://jibisovewa.weebly.com/uploads/1/3/4/6/134653871/b60679f23b986.pdfIn PDF document text
    • https://cdn.sqhk.co/mapelimujeku/gijjq81/classical_piano_sheet_music_books.pdfIn PDF document text
    • https://tukibasitotaz.weebly.com/uploads/1/3/4/4/134445351/dojojovugoxuxifo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vajefam/74869762764.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/94859403589.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/crc_fort_bliss_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4919622a-6772-4278-aafc-5c3e31a09c36/pantech_p2020_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79f9a89c-5bab-4d61-819c-3f801089b447/40_day_purpose_driven_life_challenge.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/interview_answers_tell_me_about_yourself.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8860840-f12d-4d1d-b4fe-e0f835dc34dc/hindi_bhajan_free_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B7 5464 bytes
SHA-256: f931bb481854b18741437de47c6cc6e3f68d8fd222c3261f4260c8d74d28959b
font_01_sfnt_off0000e52e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52E 11128 bytes
SHA-256: 199995baa53fa7466c62b45a70ba6dcfc00c728db2829ce53417edd030fca482

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