Malicious PDF — malware analysis report

Static analysis result for SHA-256 5352b9a85c8ab1ff…

MALICIOUS

PDF

32.6 KB Created: 2020-08-21 13:48:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59f4b3b7f76ac12b380fd6c3a8798312 SHA-1: f33f7dd616877ad5b34ec3547f24fc578e4badc0 SHA-256: 5352b9a85c8ab1ff3472562a9c39b04844142bf06496545bb56b6fbf1107bd58
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=basketball+game+free++for+pc'. The document body, though heavily obfuscated, also contains this URL and text suggesting a lure for a 'Basketball game free for pc'. This indicates a phishing attempt to redirect users to malicious infrastructure.

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=basketball+game+free++for+pc
    • http://files.adbacademy.com/uploads/1/3/2/3/132303322/0fd9f35f0a90cb.pdf
    • http://xowozota.completewellnesscenter.net/uploads/1/3/1/8/131856257/6b0a81b545d0.pdf
    • https://cdn.shopify.com/s/files/1/0447/6433/2181/files/knife_party_give_it_up.pdf
    • https://cdn.shopify.com/s/files/1/0437/8758/3650/files/27495536469.pdf
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/48629018139.pdf
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/motivazioni_sentenza_appello_bossetti.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2040/files/92264329108.pdf
    • https://cdn.shopify.com/s/files/1/0436/6709/5705/files/buwizelute.pdf
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/firestone_weathergrip_review_consumer_reports.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/6712495207.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_off0000412b.bin
7f7fb90da2ed8459b4786516ab8c8099f13c017d0322535b37e59e7751434eb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x412B 5588 bytes
font_01_sfnt_off0000541d.bin
ce95a71da472938ebf2d8a1eb1cb7093d614508b543a2ef0c6e5f984359d59df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x541D 9972 bytes

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