Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7d0e01423a9cd7…

MALICIOUS

PDF

46.2 KB Created: 2020-10-08 15:36:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ea2a150a5829c217d2068552a047dce9 SHA-1: 7c610ecff443eb1994fcf69e68a90e78aed94708 SHA-256: 7b7d0e01423a9cd7b82aa5fe7e9071b61058c3ece8812daa5f4278ce3d5c2070
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=torrent+vr+porn In PDF document text
    • http://wizarara.classroomconfessions.net/uploads/1/3/1/4/131406226/9b24f.pdfIn PDF document text
    • http://deriz.rustyforkranch.com/uploads/1/3/0/7/130739173/tudapavavonafe-janologutovag-dapotesatob-zelunok.pdfIn PDF document text
    • http://nokap.burlinistudio.com/uploads/1/3/1/8/131871729/vobojibaduzepi.pdfIn PDF document text
    • http://files.bankslaneinfants.org.uk/uploads/1/3/2/7/132740291/6f8ee3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb8e8044-04f7-4fb3-8883-ba9eda2ce158/38101919191.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a750e3ab-6ba4-4114-9e68-a0ae6e596955/tavam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88fdcc42-9c10-4589-9ef3-1fed98286c48/bipupojoxisegigajak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8206/3266/files/pa_photo_license_center_oxford.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/medazalazufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/the_knight_canterbury_tales_physical_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/7965/6344/files/33108922010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0115/1128/files/85114927650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5589/2630/files/25018169046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2725/7749/files/mary_wollstonecraft_godwin_quotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5460/7777/files/sofeforafiwozazefetiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4132/7774/files/44533657232.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
🗂 Part of campaign: aletalederwasch.com.au 7 samples

Related samples 3

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_off00007a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7B 4400 bytes
SHA-256: 9a135572f5412cd1ea0640915adf36cd8a1e58a6784914fba24f0625a92a15aa
font_01_sfnt_off0000898a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x898A 10156 bytes
SHA-256: 3a6bcfd2e2a69ec672f92674ff0e0e9fc8cbc9f44f2797cce148d5ea51a288f7

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