Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d67257aff0f5620…

MALICIOUS

PDF

41.0 KB Created: 2020-08-11 02:33:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b6d28fe8c65567da95ac852c0690018 SHA-1: 2fde7392f6d26af687984aa424a9ecfe1f744d52 SHA-256: 8d67257aff0f5620642eed15f5034b08786ac52c171de20d669d6c3b48d2e975
120 Risk Score

Malware Insights

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

The PDF contains numerous links, including a critical redirector link to 'ttraff.cc', suggesting a phishing or malware distribution attempt. The document body, though malformed, contains text related to 'Calligraphy book pdf free' and the malicious URL, reinforcing the lure. The presence of a link farm indicates an attempt to manipulate search engine results to drive traffic to these malicious sites. No scripts were extracted from this sample.

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.cc/pify?keyword=calligraphy+book+pdf+free
    • http://fivinoro.saraelizabethphotographymaine.com/uploads/1/3/2/7/132740214/bovizidilawovojalivi.pdf
    • http://gabiluku.graphite-art.com/uploads/1/3/0/8/130814310/latanebirovi.pdf
    • http://files.hostmaster.abodeinteriordesigns.co.uk/uploads/1/3/0/7/130740138/2716145.pdf
    • http://files.countrytimbergoods.com/uploads/1/3/1/4/131437515/zoxipexujodunefe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0118/3397/files/9366191550.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/mortal_kombat_2_move_list.pdf
    • https://cdn.shopify.com/s/files/1/0437/4147/9066/files/67967739877.pdf
    • https://cdn.shopify.com/s/files/1/0428/9023/1974/files/self_esteem_and_achievement_motivation.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdf
    • https://cdn.shopify.com/s/files/1/0436/2131/8818/files/rokamixarufuvasozapir.pdf
    • https://cdn.shopify.com/s/files/1/0436/8728/0790/files/25166127842.pdf
    • https://cdn.shopify.com/s/files/1/0446/8968/6681/files/cen_tech_multimeter_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/nekudevuwatakaxesagorisa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2847/2220/files/53393434382.pdf
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/nirelebigerakegejupidipa.pdf
    • https://cdn.shopify.com/s/files/1/0434/7117/5846/files/cisco_ccna_routing_and_switching_download.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_off00006234.bin
028276cc196b02f2d47a4555e379ec815073ab9ec31a7d81c86136e98fa16399		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6234 5336 bytes
font_01_sfnt_off00007456.bin
e4714ff82071f4a8aa7995fc7887adaee47fd28121cf5bca5a645dab23603954		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7456 10272 bytes

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