Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a002909a27826e3…

MALICIOUS

PDF

53.6 KB Created: 2020-08-05 00:19:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6509bf79b476f80aaf8d07c646caae84 SHA-1: 57565d338e4f44e0b976bdf508a904a8748fb458 SHA-256: 1a002909a27826e347778d1784a38bad6f2721393b8742d01d603eb4c517b720
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=accounting+information+system+james+hall+pdf+free+download', is designed to lure users into downloading content. The document also contains a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation to increase visibility of malicious content. 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=accounting+information+system+james+hall+pdf+free+download
    • http://fevik.magicofmany.com/uploads/1/3/1/4/131408027/ledofofosirob_vunujopozesiwa_midasinubagizug_josobugisutabif.pdf
    • http://files.artstudiosanneke.com/uploads/1/3/1/4/131407364/sidifewefap.pdf
    • http://files.pearlhenryboutique.com/uploads/1/3/1/3/131384635/5343208.pdf
    • http://files.sdesignsgraphicarts.com/uploads/1/3/1/4/131453543/5e566.pdf
    • https://cdn.shopify.com/s/files/1/0428/3249/4751/files/zosinuvafik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.pdf
    • https://cdn.shopify.com/s/files/1/0434/9234/3970/files/10191127043.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/26329011456.pdf
    • https://cdn.shopify.com/s/files/1/0431/7767/2868/files/america_s_history_8th_edition_online_textbook_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/wedapowovivonudiwaxupe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0264/2075/files/fotelenawivufagefiv.pdf
    • https://cdn.shopify.com/s/files/1/0440/6778/2808/files/merutifuxafodebufos.pdf
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/62321356088.pdf
    • https://cdn.shopify.com/s/files/1/0435/5181/7883/files/xuxojuramupagepezapemasu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0353/files/7191800163.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_off00009061.bin
33ae021506b2f0ee90fd474c35550727397c7c8249d58d34ad2e9c02d9127938		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9061 5828 bytes
font_01_sfnt_off0000a426.bin
83c153cd20576a3d540efdf4290b69f42854d913f6853523abd19d9f6b7faddf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA426 10924 bytes

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