Malicious PDF — malware analysis report

Static analysis result for SHA-256 08d98bf3e16a1deb…

MALICIOUS

PDF

54.9 KB Created: 2020-08-16 20:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: db4e5529e73962559595e9e8308e6fe1 SHA-1: bd410753fc76d8cf506fb6932f6378dfb8589cbb SHA-256: 08d98bf3e16a1debc3908cfae4153aa005eae7a2e900709ea4cd9934c62392b3
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying it as a malicious redirector. Another heuristic flags it as a payment redirection lure, suggesting the document's content is designed to trick users into changing payment details. The primary malicious URL identified is https://ttraff.ru/pify?keyword=shatta+wale+thunder+fire+videos, which likely serves as the initial point of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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=shatta+wale+thunder+fire+videos
    • http://tulizet.joshdaughtry.com/uploads/1/3/0/7/130740178/xezisil.pdf
    • http://walerow.bonafidefiction.com/uploads/1/3/1/8/131871864/9d2ae30b55.pdf
    • http://files.downtowndogs.ca/uploads/1/3/1/0/131070842/puvet.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/9440/8352/files/76823289805.pdf
    • https://cdn.shopify.com/s/files/1/0437/4993/3208/files/26238174777.pdf
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/gesuwe.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/cervical_dystonia_botox.pdf
    • https://cdn.shopify.com/s/files/1/0433/9649/7573/files/larimer_county_gis.pdf
    • https://cdn.shopify.com/s/files/1/0437/5920/6549/files/69574658960.pdf
    • https://cdn.shopify.com/s/files/1/0429/1585/6550/files/45029444639.pdf
    • https://cdn.shopify.com/s/files/1/0432/1230/8637/files/vibobiduxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/6105/1546/files/yasin_book_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/driver._swipe_appium_android.pdf
    • https://cdn.shopify.com/s/files/1/0438/0337/7824/files/35058287113.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/xuzidoxusubofiwumugulatel.pdf
    • https://cdn.shopify.com/s/files/1/0438/5308/6885/files/butevavo.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_off00009694.bin
90814c9f72800f35c4513b2384f8057f2f29ce4671f9f0d6bcb043bad1c6fd91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9694 5248 bytes
font_01_sfnt_off0000a877.bin
1e4ed8cbd7fca3091079ac0e42e413fedc00354a9936369ce2e93b99fc44ab97		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA877 11456 bytes

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