Malicious PDF — malware analysis report

Static analysis result for SHA-256 7af89872eaad9220…

MALICIOUS

PDF

43.5 KB Created: 2020-08-21 18:26:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49f01cce324a172bc3931bb6fdac273f SHA-1: ed3d560720708f7bcc6948f62209bd70ef49b711 SHA-256: 7af89872eaad922028f52535a6529d41ec74dc35b6211425abedb49bca206e72
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with the primary one directing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to manipulate search engine results or distribute malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to harmful sites, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.ru/pify?keyword=ecological+economics+principles+and+applications+pdf
    • http://fupaxafal.peacecitysoaps.com/uploads/1/3/2/3/132302780/fixozipegu.pdf
    • http://files.nhfuneral.org/uploads/1/3/1/8/131856134/21f98aac5c3f8.pdf
    • http://files.ososoaps.com/uploads/1/3/1/6/131636889/9ad99.pdf
    • http://files.simplyequaleducation.org/uploads/1/3/1/4/131452961/a60d03c40cad96.pdf
    • http://mowizu.drlindagedeon.com/uploads/1/3/0/8/130873851/lebinawi-kofisogenor-xenogodev.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demesudixagivok.pdf
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/clownfish_care_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/8721/7319/files/95409465792.pdf
    • https://cdn.shopify.com/s/files/1/0437/9151/5805/files/beautiful_akon_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0437/1863/9765/files/rujenivobidonosidag.pdf
    • https://cdn.shopify.com/s/files/1/0434/8634/7414/files/98934053057.pdf
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/22577445274.pdf
    • https://cdn.shopify.com/s/files/1/0448/1282/8833/files/the_bro_code_barney_stinson_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/8466/1407/files/nike_balance_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0439/3720/2344/files/97930300410.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/complete_qaseeda_burda_shareef.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/gosowum.pdf
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/rokenofimu.pdf
    • https://cdn.shopify.com/s/files/1/0448/1440/1697/files/bhojpuri_film_karan_arjun_video.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cc9.bin
2fc0ed50ef89b602fc532874b628054b13c61705ee1c84e43c5928d2d91edc73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC9 5432 bytes
font_01_sfnt_off00007f29.bin
b9eb1758e3f748c57d5b1073b8513ce319ddae30aefd64dbc71e9d49407dfb99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F29 9768 bytes

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