Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f2b6a9b32fcdf6c…

MALICIOUS

PDF

40.4 KB Created: 2020-08-21 02:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40a5015f45094b8cb30f732630afbe20 SHA-1: 3a300dccff2fcb6aa3c5f3e383ab81f0aec43edd SHA-256: 8f2b6a9b32fcdf6c0465eea810fb4c1db72df8ac9c30a784d0ab35f6a00fa7dc
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. The document body, though partially corrupted, contains text suggesting a lure related to a "Roll20 character sheet not working" and includes the malicious URL. This indicates a phishing or scam attempt designed 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.com/pify?keyword=roll20+character+sheet+not+working
    • http://sijaleji.laurenkellyontheroad.com/uploads/1/3/0/7/130775732/nituf.pdf
    • https://cdn.shopify.com/s/files/1/0438/3745/6534/files/auto_clicker_android_5._1_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31240515614.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/50922260817.pdf
    • https://cdn.shopify.com/s/files/1/0428/3305/1814/files/10508993603.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/26875145969.pdf
    • https://cdn.shopify.com/s/files/1/0441/3951/1960/files/67057305280.pdf
    • https://cdn.shopify.com/s/files/1/0433/0556/6366/files/sobreviviendo_a_la_sepsis_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/acuerdo_de_paris_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/3028/1377/files/44306277481.pdf
    • https://cdn.shopify.com/s/files/1/0433/5563/5880/files/8287370026.pdf
    • https://cdn.shopify.com/s/files/1/0440/5572/4197/files/wiley_addiction_treatment_planner.pdf
    • https://cdn.shopify.com/s/files/1/0432/0742/6216/files/29999424631.pdf
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/rixoradopalufaxuk.pdf
    • https://cdn.shopify.com/s/files/1/0440/8125/0469/files/regitimog.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_off0000599f.bin
90f794addb6fd668e892295aaf7c3c5e164c57669c67ddc4f0747e33eade9d2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x599F 5496 bytes
font_01_sfnt_off00006c59.bin
ece965d2b563ce83ec1186f14370c8618808ff790694c6a08fab7a71b61a9539		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C59 12484 bytes

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