Malicious PDF — malware analysis report

Static analysis result for SHA-256 2405e15f27c5ddcc…

MALICIOUS

PDF

56.8 KB Created: 2020-10-05 19:00:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: e4d65ba1333fbb9c4f8fbe72f8494608 SHA-1: 61bab82866be49b252ee23b5d945644665310581 SHA-256: 2405e15f27c5ddcc7945b0987b2d5d499c79b9214d9bef342ce14bdbe5a2a3ce
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=escabiosis+tratamiento+permetrina+pdf In PDF document text
    • https://site-1037184.mozfiles.com/files/1037184/bulapotozapilaresonomugot.pdfIn PDF document text
    • https://site-1041395.mozfiles.com/files/1041395/17659457258.pdfIn PDF document text
    • https://site-1036965.mozfiles.com/files/1036965/87820983560.pdfIn PDF document text
    • http://donunafa.voicecarephilippines.com/uploads/1/3/1/4/131482995/954691ec5b2.pdfIn PDF document text
    • http://dizimur.3rdpointproductions.com/uploads/1/3/1/8/131857090/gebuferodamik.pdfIn PDF document text
    • http://files.islandbusinessnetwork.co.uk/uploads/1/3/0/8/130874435/218705.pdfIn PDF document text
    • http://files.vladimirpopovicphotography.com/uploads/1/3/0/7/130776233/8043820.pdfIn PDF document text
    • http://files.hushupclothing.com/uploads/1/3/1/8/131856391/mamulov.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://uploads.strikinglycdn.com/files/574fc624-6aa4-4b34-a9b3-54404cf8827b/zenerukerikewifok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b891b0c-92d6-4e49-9fae-5e3621b36d28/56523026219.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc7bb11d-a49e-4c1c-89a0-d1b6828b7b54/pukut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8059/0521/files/east_hopewell_township_pennsylvania.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5624/2074/files/86768034854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1216/0679/files/zemixivexapupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5526/5445/files/how_to_get_free_fortnite_accounts_with_skins_2020.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 8

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_off000090bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BB 5152 bytes
SHA-256: a304c1b1a6d1fe80dd3c41227d34e8f725d92ca215490b2752c7a006540803e5
font_01_sfnt_off0000a214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA214 10980 bytes
SHA-256: 1e90688816658984bd343b3d4c2a2eee88310224c031ba46e631adb5071f38d9
font_02_sfnt_off0000c5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5FF 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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