Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbabc8179377013b…

MALICIOUS

PDF

32.7 KB Created: 2020-08-02 20:30:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f705b8a63528756d7efa0437004fa93 SHA-1: ffa631821f8156b5fb6d7c564cbc0093a9f61657 SHA-256: bbabc8179377013bbb5f7c88ab6100235f92ed241dc28708084b09d482dfe9db
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, which is indicative of a link farm. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.ru/pify?keyword=tamasha+online+movie', suggesting an attempt to direct users to malicious content. The document body, though heavily obfuscated, contains text related to 'Tamasha online movie', likely a lure to encourage clicks on the embedded malicious links.

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.ru/pify?keyword=tamasha+online+movie
    • http://files.mrsclemens.com/uploads/1/3/1/3/131398010/9755390.pdf
    • http://files.ajcberkshires.com/uploads/1/3/1/4/131411688/9354060.pdf
    • http://files.scdt.com/uploads/1/3/1/0/131070938/798347774ba5c.pdf
    • https://cdn.shopify.com/s/files/1/0434/6934/0822/files/wazafirubonatosit.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/zugifiwifupeser.pdf
    • https://cdn.shopify.com/s/files/1/0434/7543/5677/files/muxufuse.pdf
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/xozadosizotapubeva.pdf
    • https://cdn.shopify.com/s/files/1/0432/6480/2982/files/56229410008.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/turisupapotafezugozuwiru.pdf
    • https://cdn.shopify.com/s/files/1/0436/1371/6643/files/78490951027.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/45133502809.pdf
    • https://cdn.shopify.com/s/files/1/0431/2013/2257/files/84920919195.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/labakomiboxibafubutede.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/kujipugamo.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_off0000442b.bin
25d17c8b480b13f18046a574951683672c8325787aada39ee524fa4c667c63a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x442B 4840 bytes
font_01_sfnt_off0000547c.bin
39f4864c022c5c5e5366795168b6de7e23ad3e1348fd7f93087029c9bd6eee29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x547C 9980 bytes

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