Malicious PDF — malware analysis report

Static analysis result for SHA-256 dba3878114c92a10…

MALICIOUS

PDF

44.6 KB Created: 2020-08-19 15:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7183e15a497e9175311ba675eee5b7a9 SHA-1: e5b90ff5506cda172ee78768689ffa59db9b979f SHA-256: dba3878114c92a10e9e73251a1769ae544f467e27f649f2ce6e4b3583f1648fd
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=ben+10+omniverse+psp+iso+free', which is flagged as malicious. The presence of numerous other PDF links suggests an attempt to game search engine results or distribute further malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ben+10+omniverse+psp+iso+free
    • http://files.susurrostudio.com/uploads/1/3/1/4/131454102/dotevukoxuzavad.pdf
    • http://junubako.alishamonique.com/uploads/1/3/0/7/130776023/8303101.pdf
    • http://files.craigjafferesearch.com/uploads/1/3/1/4/131452944/515088.pdf
    • http://dipituxop.rusticchalkdecorshop.com/uploads/1/3/0/7/130775085/binomenitotuwobe.pdf
    • https://cdn.shopify.com/s/files/1/0430/7428/9813/files/86284796215.pdf
    • https://cdn.shopify.com/s/files/1/0435/2881/4746/files/jiwip.pdf
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/31762831807.pdf
    • https://cdn.shopify.com/s/files/1/0449/0277/6999/files/26437177932.pdf
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/safafivokijari.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/british_english_grammar_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3431/files/71364645191.pdf
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/mewoxiruwekazo.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/21614664623.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be7.bin
c40d8188f9e437f92fc5c703e7ff0be93ee93ef315ee538b4f6df5af61a4eb55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE7 5108 bytes
font_01_sfnt_off00006d3f.bin
19abc0744ecac0ab9cf4c4d4276ebba63dd3e22682e5d5500329bd6e3415013d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3F 10388 bytes
font_02_sfnt_off000090e4.bin
5d72d630640305d452d914085fd6c65e0d8125198bed8028c282d44fd0327be8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90E4 16068 bytes

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