Malicious PDF — malware analysis report

Static analysis result for SHA-256 9439969a14dff39d…

MALICIOUS

PDF

62.2 KB Created: 2020-08-23 19:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d86b05c0784299df43a064c2dc0963d SHA-1: 6da18f2cb0a6d6e28a51ebecceb9c73ea22de75f SHA-256: 9439969a14dff39d0faa3b460d026074c9e50ac32098b13dc684b01825113cf7
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary link, 'https://ttraff.com/pify?keyword=albert+camus+les+justes+pdf+gratuit', is designed to lure users into clicking by promising a free PDF download. This link redirects to malicious infrastructure, indicating a phishing or social engineering attack. The document body, though heavily obfuscated, contains the same redirect URL, reinforcing the malicious intent.

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.com/pify?keyword=albert+camus+les+justes+pdf+gratuit
    • http://files.carriewears.com/uploads/1/3/1/8/131856188/pamisupido-movud-susifeki.pdf
    • http://files.labeventing.com/uploads/1/3/1/4/131406086/subunen.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/dupibazasesi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/file__nh_dng_l_g.pdf
    • https://cdn.shopify.com/s/files/1/0441/0929/9864/files/lider_autocratico.pdf
    • https://cdn.shopify.com/s/files/1/0432/9593/2584/files/three_phase_boost_pfc_converter.pdf
    • https://cdn.shopify.com/s/files/1/0434/4109/4817/files/lusesinukuvajujukejob.pdf
    • https://cdn.shopify.com/s/files/1/0437/8417/5768/files/26327917388.pdf
    • https://cdn.shopify.com/s/files/1/0440/2626/5765/files/tovugilerurim.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9575/files/tosobumu.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/61959184624.pdf
    • https://cdn.shopify.com/s/files/1/0458/5973/3657/files/2337983058.pdf
    • https://cdn.shopify.com/s/files/1/0449/6136/6175/files/esma_guidelines_remuneration_policies_and_practices.pdf
    • https://cdn.shopify.com/s/files/1/0428/2282/8198/files/wizikivolekedato.pdf
    • https://cdn.shopify.com/s/files/1/0428/2528/5798/files/jojomobapedenorubifidimu.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/
    • https://cdn.shopify.com/s/files/1/0440/2626/57

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b0a2.bin
fc5393b8965987b0b23e459b8ca8853b594c352b1f6679e80a231fb178cd0587		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0A2 5680 bytes
font_01_sfnt_off0000c3e4.bin
9664a82a09029eb3dbcfa3c27187de34c8e681f67a2e369dd71bfeda273a7f09		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3E4 12400 bytes

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