Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2568f87b06f1917…

MALICIOUS

PDF

45.7 KB Created: 2020-08-04 06:51:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95863b657858d281db25c5363e8b9359 SHA-1: b8cf2b0f45b3c40e69fec741366c8ceb17002608 SHA-256: d2568f87b06f1917889a13356a589484f628de86449fa55d42c21f2ca9345ca5
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text referencing a book title and a URL that matches the malicious redirector. This suggests a social engineering tactic to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

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.ru/pify?keyword=first+book+of+ansi+c+4th+edition+pdf
    • http://files.spirituallyfabulous.com/uploads/1/3/0/7/130776399/xogesujiragixe.pdf
    • http://files.tyngsboroughpto.org/uploads/1/3/2/8/132816042/vetawolabeka.pdf
    • http://files.azcofchrist.org/uploads/1/3/0/8/130813975/422d41f323ff.pdf
    • http://files.mrswatsonsroom.com/uploads/1/3/1/8/131872087/fovobupanaz_puropataner_mofipujo.pdf
    • http://files.itqansports.com/uploads/1/3/2/3/132303353/5213518.pdf
    • https://cdn.shopify.com/s/files/1/0436/3180/4574/files/breakdown_lyrics_j_cole.pdf
    • https://cdn.shopify.com/s/files/1/0438/9987/9576/files/95787450790.pdf
    • https://cdn.shopify.com/s/files/1/0436/3590/0569/files/streamline_english_destination.pdf
    • https://cdn.shopify.com/s/files/1/0432/9550/6592/files/tasizotu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6339/1894/files/mayweather_vs_canelo_full_fight.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78682713185.pdf
    • https://cdn.shopify.com/s/files/1/0438/5013/7760/files/burger_king_kitchen.pdf
    • https://cdn.shopify.com/s/files/1/0431/3976/0295/files/linear_algebra_3rd_edition_fraleigh_beauregard.pdf
    • https://cdn.shopify.com/s/files/1/0437/4983/4901/files/les_neuf_quadrants_de_l_abdomen.pdf
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/manual_cbx_200_strada.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_off000073c4.bin
98236cb71c844166a5f97a8ec20a01868dcd2c65a545772a7b787e14fb0b8eeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73C4 5456 bytes
font_01_sfnt_off00008652.bin
d7de701910338ae342710e03f39122baf22fe911ced39f2f8ad1e5e559136c7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8652 10280 bytes

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