Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9d138760489a33…

MALICIOUS

PDF

70.0 KB Created: 2021-02-22 16:55:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 876e95e1848fefaae231efb249991398 SHA-1: 64648f638e75dbadc3dcb748582f1de83c635ff0 SHA-256: ed9d138760489a334c923b71aeaef3a00c408f1f2a0b54e0e6b2bf3558354e5f
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://yafferge.ru/wix?keyword=lewis+county+model+railroad+club In PDF document text
    • https://cdn.sqhk.co/dasofuduveje/hheNgf1/dirilevafigojojir.pdfIn PDF document text
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/a6ade778fe7.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/gibxic4/how_to_draw_monster_high_draculaura.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/cm9jhq4/perfect_world_mobile_on_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393624/normal_5fcefe92dbae7.pdfIn PDF document text
    • http://suwuzorabuligu.iblogger.org/lesson_plan_example_template.pdfIn PDF document text
    • https://gisoroweri.weebly.com/uploads/1/3/4/8/134893792/2929564.pdfIn PDF document text
    • https://cdn.sqhk.co/pajijolabalu/fifnhdf/24198698583.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
    • http://lanadofebanubod.epizy.com/spider_man_presentation_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/betting_on_the_bride_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/80489678378.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/41594405609.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/naviance_brag_sheet_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/40677574232.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/blown_to_bits_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/chill_out_music.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EA 5240 bytes
SHA-256: 3a8c44e90df11c17e394cba9876880696af8869bb48bdaa18cf2b2dc0e51e93f
font_01_sfnt_off0000d8b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B1 10608 bytes
SHA-256: 46d6d281e9f93ad8f4995ae97b0e08f6f9ef9c1ca593b5eaea7f678ef48a1d40
font_02_sfnt_off0000fd24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD24 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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