Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f09b312b1c880d…

MALICIOUS

PDF

46.9 KB Created: 2020-10-29 19:20:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 267a2c0d8f63f1e34a76787f75834e34 SHA-1: 16c6772ed37f3ae495e3fb124f6b298eb3896993 SHA-256: 72f09b312b1c880de36fa94cbbd4e40cbcf090943680032a1258d9215c6e332b
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and 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 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://ggtraff.ru/aws?keyword=fallout+van+buren+download In PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/pakulugip.pdfIn PDF document text
    • https://jedunaxalow.weebly.com/uploads/1/3/1/6/131606453/f29b20392831.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/9717265.pdfIn PDF document text
    • https://sisaseno.weebly.com/uploads/1/3/0/7/130776680/0b59beb5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8147/5267/files/sefizaxonamizum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7976/9498/files/problemas_de_operaciones_con_numeros_naturales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8794/0776/files/55030326566.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/asking_for_information_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/income_tax_slab_financial_year_2017-_18.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b66e0829-951c-4900-a71c-9ef907260dfd/williamson_2013_macroeconomics_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/21192741997.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/garofelovijasibafid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4672/2965/files/download_aplikasi_word_to_untuk_laptop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83381f33-f2b1-417a-8900-afe424c25c71/determinar_la_fuerza_presente_en_cada_elemento_de_la_armadura.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_off000078d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D2 4888 bytes
SHA-256: d9883780a0184a272a9074150b9a7caecdcc1503f12338d9968cd04af926c812
font_01_sfnt_off00008992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8992 10836 bytes
SHA-256: 0579366085bbbecfaac145c071f092142ec062f4545fc67b2c48d32c6670fbd8

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