Malicious PDF — malware analysis report

Static analysis result for SHA-256 064ef72a7dcb00fe…

MALICIOUS

PDF

48.2 KB Created: 2020-10-26 16:19:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: e204257761678df3d9f16874f6ec0c16 SHA-1: 3a524c8af1b26e41ea68aa61907101cc6fe06267 SHA-256: 064ef72a7dcb00fe03b65bd5eccdd11ae2000815974b44fc66da494ab5c811a4
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://cctraff.ru/aws?keyword=march+2018+calendar+marathi+pdf In PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/7909875.pdfIn PDF document text
    • https://zugufavowi.weebly.com/uploads/1/3/0/8/130874222/ef7b53a36feb2.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/534f4.pdfIn PDF document text
    • https://nulakumoxuguv.weebly.com/uploads/1/3/1/8/131871970/6772962.pdfIn PDF document text
    • https://gadevonetikob.weebly.com/uploads/1/3/4/3/134358307/402072.pdfIn PDF document text
    • https://kejedaxuz.weebly.com/uploads/1/3/4/3/134355680/lawaluwikoxo_xeduzagovowepev_kigigemixebin_sapabajide.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007b99.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007b99.bin)
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/25384057150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4301/2256/files/hydrus_water_meter_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/5281/7573/files/formato_dc-3_stps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8748/5342/files/44802108669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6278/7748/files/cts_v_wagon_for_sale_manual_transmission.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9929/4363/files/citrix_receiver_android_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2742/9536/files/81410354851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/6647/3627/files/4918761211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3499/1528/files/urban_landscape_architecture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3343/4011/files/jibum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/1333/0870/files/ascended_armor_gw2_crafting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/65697406054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/3505/6030/files/android_mobile_wallpaper_full_hd_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5581/5093/files/girlfriends_guide_to_divorce_canadian_netflix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9462/0333/files/82791271887.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 extracted file (font_00_sfnt_off00007b99.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B99 5740 bytes
SHA-256: e7fbbf3769c6b5b43d19e9cf3315f5974fdc6a0291b8e39ea09a962fffd65591
font_01_sfnt_off00008eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFF 11092 bytes
SHA-256: 61a4644005457e0da54b89cff3e952c168489c93d9701dd80a8429e53aed6a87

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