Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2de220c9a94f00d…

MALICIOUS

PDF

40.7 KB Created: 2020-08-24 15:57:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 835184f29e38db937f1fa8eefac06edc SHA-1: c97937abfbf1033349efe525960f222939b22f90 SHA-256: d2de220c9a94f00d45dc32f55a844fac4b813442898c119327da0c2e30e52b3c
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Bolt nut dimensions metric pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous links, likely to obscure the malicious redirector.

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=bolt+nut+dimensions+metric+pdf
    • http://negelop.doneyparkhomestead.com/uploads/1/3/1/6/131636725/gukuvegabar.pdf
    • http://sofibudo.mixmasterrod.com/uploads/1/3/0/8/130814328/7620c6eb5cb092.pdf
    • http://files.dlindphotoartisan.com/uploads/1/3/0/9/130968993/6a8b0be706c.pdf
    • http://files.pirouettesschoolofballet.com/uploads/1/3/2/7/132710795/be644710.pdf
    • https://cdn.shopify.com/s/files/1/0428/2220/5607/files/descargar_mi_certificado_de_secundaria.pdf
    • https://cdn.shopify.com/s/files/1/0429/3050/3846/files/c_n_ratio_in_soil.pdf
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/midigirelelovemaja.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8074/files/79402429372.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/la_biblia_thompson_de_estudio_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0434/5669/2390/files/assembler_2_fichiers_en_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/3430/3912/files/dizab.pdf
    • https://cdn.shopify.com/s/files/1/0432/1158/7752/files/skyrim_books_beggar_thief_warrior_king.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/zomezofulo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5387/4329/files/57947155191.pdf
    • https://cdn.shopify.com/s/files/1/0428/5366/2883/files/40820537711.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_off00005ff6.bin
f827ca9138b56b5346d0c9c69e8d44c6bffd27605beb9c26d24383bb031a5c1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF6 5140 bytes
font_01_sfnt_off0000715c.bin
b905a8c346a28d010d6f3694b0e7941dc56722b60c8ee91fc893b34a06caa612		 pdf-font-stream PDF embedded font (sfnt) at offset 0x715C 10456 bytes

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