Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba6dbc982fb24bc…

MALICIOUS

PDF

43.6 KB Created: 2020-10-31 21:12:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 393618452bb5fe008327c6af4f56b547 SHA-1: 9f57481369770ef218b28ead235e3b6ceb48217f SHA-256: 2ba6dbc982fb24bcc8e429f64b93469acc4608fca1dbb4b970a514bf5142987e
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a prominent link disguised as a download for 'drastic ds emulator apk cracked no license'. This link, https://ttraff.club/123?keyword=drastic+ds+emulator+apk+cracked+no+license, is flagged as a malicious redirector. The document also features a large number of external links, many pointing to Shopify, suggesting a link farm used for SEO manipulation to attract users searching for cracked software.

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.club/123?keyword=drastic+ds+emulator+apk+cracked+no+license In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_5f884b416ea11.pdfIn PDF document text
    • https://zamizugupaf.weebly.com/uploads/1/3/3/9/133999186/nutejuvonugosa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371553/normal_5f8bd511f1c1f.pdfIn PDF document text
    • https://papokerudinex.weebly.com/uploads/1/3/4/3/134310480/9435163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412379/normal_5f98b2df5fd9b.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/1/0428/9124/7779/files/fredie_didier_jr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5520/0447/files/metronome_beats_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5234/1694/files/71802031468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/atresia_de_coanas_en_recien_nacido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93824bd6-0f50-4b4b-aa5b-eaca0ffe3217/9851337798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/0180/4462/files/nmap_apk_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/2548/6778/files/mifederavidatifixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0615/9779/files/ukg_tamil_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7266/8319/files/xijolemebazaxewoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/3893/8550/files/concept_of_economic_growth_in_nigeria.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_off000069e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E2 5280 bytes
SHA-256: 11ceefcfeb4b639fce61c37c219a7437baead378e1fa58bc3def4eadf8818c1a
font_01_sfnt_off00007bc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC4 10932 bytes
SHA-256: ce9d1ed6cb7db2f15c020ed99e186f478ad5c566fae940d07a71f718f496fb67

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