Malicious PDF — malware analysis report

Static analysis result for SHA-256 529075144f497e98…

MALICIOUS

PDF

42.8 KB Created: 2020-08-11 21:29:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 647470ab7333548578103059ecb04332 SHA-1: 6c7d04db4f5cc9ed79573ae0d856518efe6462ad SHA-256: 529075144f497e98c5818a8ac002bac3973626deb25ab1b035b31c6b6e916d1d
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a "certified ethical hacker pdf" download. The document body and heuristics indicate a link farm strategy, directing users to various URLs, with the primary malicious link being https://ttraff.ru/pify?keyword=ceh+v10+ec+council+certified+ethical+hacker+pdf. This suggests a phishing or scam attempt leveraging search engine optimization tactics.

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=ceh+v10+ec+council+certified+ethical+hacker+pdf
    • http://files.campsabrablog.com/uploads/1/3/1/3/131379174/dabodabojalunu_xoxibumijafunof.pdf
    • http://files.sinyonshuntay.com/uploads/1/3/0/7/130776828/2851670.pdf
    • http://pexire.stevebishop.net/uploads/1/3/0/7/130774978/24529.pdf
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/john_deere_la_115_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/luruvosewinixul.pdf
    • https://cdn.shopify.com/s/files/1/0434/5462/7993/files/zivobuxamazidolilonebexuw.pdf
    • https://cdn.shopify.com/s/files/1/0446/9909/1098/files/gate_exam_brochure_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/1383/2857/files/au_bonheur_des_dames_zola.pdf
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/45569940323.pdf
    • https://cdn.shopify.com/s/files/1/0439/2907/5880/files/project_management_larson_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/1024/5286/files/kajipenumupuketokekuzel.pdf
    • https://cdn.shopify.com/s/files/1/0440/4386/2181/files/tedigedezevoxojakabu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4828/7904/files/tebatugawewad.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/19284640515.pdf
    • https://cdn.shopify.com/s/files/1/0434/0105/2323/files/kedajelanewije.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/
    • https://cdn.shopify.com/s/files/1/0433/52

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067d2.bin
fb27b9069976dbc3bd6a6292960b44cb08debcf68e7361d11f5633b2be66b5bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67D2 5288 bytes
font_01_sfnt_off000079c3.bin
60514d4f01de541e414fddfced5f10a9bda435b17f8ae0e3591d920a722914eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C3 10488 bytes

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