Malicious PDF — malware analysis report

Static analysis result for SHA-256 488dc6fc52fc865f…

MALICIOUS

PDF

77.6 KB Created: 2020-08-21 12:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5eb02d6f274e27e485b4de9b9788c24f SHA-1: ce5fc04d77c2cc7a26d7c17ce3f5ce8687c8f5e8 SHA-256: 488dc6fc52fc865f94716f6376b6672d83bfbda6c7986528092e69891552c5f6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a link that redirects to malicious infrastructure, disguised as an annual report. The document body and embedded links suggest a lure to trick users into visiting a malicious site. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to manipulate search engine results or distribute malicious content.

Heuristics 3

  • 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.
  • 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.com/pify?keyword=hindustan+aeronautics+limited+annual+report+2018
    • http://files.musick5.net/uploads/1/3/0/7/130740589/126f608324f1.pdf
    • http://files.fryeins.com/uploads/1/3/1/3/131398347/8898428.pdf
    • http://negalisi.rickbassettmusic.com/uploads/1/3/1/4/131407253/tukavusujupe.pdf
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/12373307835.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/tefotevozusir.pdf
    • https://cdn.shopify.com/s/files/1/0434/6678/4932/files/electrolysis_of_water.pdf
    • https://cdn.shopify.com/s/files/1/0436/1591/2098/files/kuxulariwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4261/9035/files/39364976087.pdf
    • https://cdn.shopify.com/s/files/1/0430/0052/9049/files/fulejaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2943/files/additives_in_concrete.pdf
    • https://cdn.shopify.com/s/files/1/0430/5548/0981/files/gonasowowedaberixo.pdf
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/christina_aguilera_lady_marmalade.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5f1.bin
acd3537a58efa8129c9d81ce9815755d958e063c9da0747618101b21e86ff319
pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F1 5700 bytes
font_01_sfnt_off0000f930.bin
953c2933f7b9d782fac016c60a7818e68c7a79c9a7303f3ec0ff246d2fe62d39
pdf-font-stream PDF embedded font (sfnt) at offset 0xF930 15128 bytes