Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f1705b5d12126b2…

MALICIOUS

PDF

47.5 KB Created: 2020-10-07 15:20:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 877b4353f853203de4aa095e3e1f94a6 SHA-1: 70d8142e6dc4b3c999a96bb1a8cc3eb2371f6623 SHA-256: 7f1705b5d12126b201190e19459d7763d96b276d3c95585db511eef61d7eb169
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gettraff.ru/strik?keyword=change+management+examples+pdf In PDF document text
    • http://nubazu.jebeanjewelry.com/uploads/1/3/0/8/130874391/1120188.pdfIn PDF document text
    • http://files.ctfarms-rabbits.com/uploads/1/3/1/3/131382239/31fb34e58a48dd.pdfIn PDF document text
    • http://tedepegak.francalicea.com/uploads/1/3/1/4/131407736/fejuloki_xikiwit_valudawi_lamevuji.pdfIn PDF document text
    • http://files.orienmcneill.com/uploads/1/3/1/6/131606984/4158dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7159/7465/files/2011_chevy_impala_repair_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0470/6074/6408/files/enriching_our_worship_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7505/7302/files/rio_mas_caudaloso_de_puerto_rico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4313/4362/files/rafagaditokirelumadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9348/files/88166395090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9217/1165/files/nananukemuxaxoresinid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/8069/5207/files/nonizus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/sequence_of_events_graphic_organizer_3rd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/9_oz_to_ml_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0403/4712/files/gagokavekikoribefuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/4245/5961/files/weferadefaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4096/3751/files/dowodamuvo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6B 5080 bytes
SHA-256: f136dcdedae4e18dbec0f591a000b21e4fff7ef1c52b33dc5c0789fa83ddb544
font_01_sfnt_off00007f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F8F 10404 bytes
SHA-256: 0e0315583e192cedf29d867f5f7a95af9b29fa4b045f07df563ce109e4f112a1
font_02_sfnt_off0000a2f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F5 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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