Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0bb43054e107568…

MALICIOUS

PDF

34.5 KB Created: 2020-09-07 19:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0daca755ed1e757a12bf9c18346d5a20 SHA-1: be6c48810340c4d7d948eccb1c9984ad513adefe SHA-256: e0bb43054e1075680cf112eb826832deaa643948888651cd11074b5fe9ce1060
152 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify-hosted PDFs, which is characteristic of a link farm used for SEO manipulation or to obscure malicious destinations. One of the primary links, 'https://ttraff.me/wix?keyword=akhiyan+de+kol+ringtone', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to a song title and the PDF creation tool, suggesting a lure to disguise the malicious intent of redirecting users to harmful content.

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.me/wix?keyword=akhiyan+de+kol+ringtone
    • https://cdn.shopify.com/s/files/1/0472/2570/0517/files/laser_guided_wheelchair_for_the_blind.pdf
    • https://cdn.shopify.com/s/files/1/0436/6240/9881/files/ritumuxibos.pdf
    • https://cdn.shopify.com/s/files/1/0463/5597/2258/files/28926448352.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/44973197976.pdf
    • https://cdn.shopify.com/s/files/1/0434/1743/6312/files/bejawada_full_movie_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53978683100.pdf
    • https://cdn.shopify.com/s/files/1/0438/0812/9185/files/bijoduxogeneg.pdf
    • https://cdn.shopify.com/s/files/1/0433/6317/2502/files/lezavejelonokujetemulobeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/5294/9913/files/zusegomevonalolikaz.pdf
    • https://cdn.shopify.com/s/files/1/0435/1636/2920/files/14665095336.pdf
    • https://static.usrfiles.com/ugd/89441e_66c042420cf24f5f9ad72608ab3ada9b.pdf
    • https://static.usrfiles.com/ugd/ee9d3f_6bffdda8c6184791a788430e7c7c3c5b.pdf
    • https://static.usrfiles.com/ugd/eda9ba_8d44336ea78f4b229ac38d9e310cc853.pdf
    • https://static.usrfiles.com/ugd/81b904_95cf0d489b954a3b9e233918c058fef7.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/happy_birthday_card_printable_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/php_mysqli_class.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_off00004a70.bin
7eecf0c8d04c3fd1a6b2290f37cf6f020772a2a261eb7245f6c9a2a36e085344		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A70 5064 bytes
font_01_sfnt_off00005baf.bin
abb161dd60d5a478705a7f0cd9987cfcc8d4ae93b705d303a347962d5c8ab096		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAF 9928 bytes

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