Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad65d1e96d70ae2c…

MALICIOUS

PDF

49.2 KB Created: 2020-08-15 02:05:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feebcf27897039522489945ca4689147 SHA-1: da105ebe2e56eb9173c412ebdb77b058b9e6fd6b SHA-256: ad65d1e96d70ae2c51f4b8c2c4f1c4651f32e4df0b4dcf42f081f1c9b983680d
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One primary URL, 'https://ttraff.ru/pify?keyword=about+us+template+w3schools', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDFs, suggesting a coordinated effort to distribute malicious content. The presence of a large number of external links points towards a phishing or malware distribution campaign.

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=about+us+template+w3schools
    • http://furire.michaelmattoongolf.com/uploads/1/3/1/4/131407406/1630066.pdf
    • http://porosif.kanestoyhunt.com.au/uploads/1/3/2/6/132680839/5252329.pdf
    • http://files.giuliosterbinisounddesign.com/uploads/1/3/0/9/130969960/9890313.pdf
    • http://kowogomop.myforgenetwork.com/uploads/1/3/0/8/130814328/zunopikopa.pdf
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/sijixamogezunoxakak.pdf
    • https://cdn.shopify.com/s/files/1/0429/4760/8730/files/39331104689.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezaneseku.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdf
    • https://cdn.shopify.com/s/files/1/0433/8352/1445/files/19294319937.pdf
    • https://cdn.shopify.com/s/files/1/0436/8308/6489/files/micromax_mobile_brand_fusion_ringtone.pdf
    • https://cdn.shopify.com/s/files/1/0437/1028/3931/files/11754692687.pdf
    • https://cdn.shopify.com/s/files/1/0436/5074/4478/files/6163785524.pdf
    • https://cdn.shopify.com/s/files/1/0428/8223/6583/files/78806258204.pdf
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/78027012768.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/63046643322.pdf
    • https://cdn.shopify.com/s/files/1/0434/8418/4742/files/bar_billiards_rules.pdf
    • https://cdn.shopify.com/s/files/1/0435/8845/2515/files/numerical_agronomy_book.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_off0000809a.bin
26af8d934e2ed094cbb75bfa3c8e9360318a0911b21aaa3a197cf92f6e3fff29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x809A 5464 bytes
font_01_sfnt_off00009317.bin
0fa5770c98a80c3a97bc7f834c3cef1589615fdacad6f43ea01ebec158d99cf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9317 10732 bytes

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