Malicious PDF — malware analysis report

Static analysis result for SHA-256 2862fd9f621ee88a…

MALICIOUS

PDF

44.2 KB Created: 2020-08-09 02:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b95ab8ce33ed6453a573f1e82c757bf2 SHA-1: ef874591f289bd87ae90d524757f80a72e3bba52 SHA-256: 2862fd9f621ee88a6d4c35c2f485738aeea73eb957e5a857b7cc58f0764d3f6e
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=attractor+factor+pdf+italiano', which is likely intended to lead the user to a malicious site. Another heuristic indicates a link farm, suggesting an attempt to artificially boost search engine ranking or distribute links to various potentially malicious resources.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=attractor+factor+pdf+italiano
    • http://sexoxu.evernaturalphotos.com/uploads/1/3/0/9/130969754/556971.pdf
    • http://files.hracademia.org/uploads/1/3/0/9/130969992/tarubajiredixison.pdf
    • http://files.weiwutaekwondo.com.au/uploads/1/3/1/4/131453396/tepepavudumitelokan.pdf
    • http://files.woodlandharvest.org/uploads/1/3/1/0/131070207/vumaweniv.pdf
    • http://files.weiwutaekwond
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/zorufajebagukir.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/74125716184.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/fufutitopileriresowumipal.pdf
    • https://cdn.shopify.com/s/files/1/0434/9453/9429/files/staff_services_analyst_exam.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/noradi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/sojipagovo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/guziwexejavufir.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/94649302978.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdf
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/92479932966.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/61412396715.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/introduction_to_mathematical_programming.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_off00006e73.bin
a5f10bf3820ea6de308f25455b6fc9a990c5e26b898c5623871270a3b5e8796e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E73 4960 bytes
font_01_sfnt_off00007f62.bin
e7ba0ac0ab0bc9fdd3f264d6973eff222c23566c7c48ec6714b3c2f6320b97e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F62 10740 bytes