Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0607f0ec61d7a7e…

MALICIOUS

PDF

58.9 KB Created: 2020-10-15 22:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 93d9fa17bedc1cf096bf69189445a36e SHA-1: a47a106b5474b8daf16fea12a22f2f748ec46618 SHA-256: d0607f0ec61d7a7e39aac7a48f9512c9ab41b53f9f2317901826513be121fe26
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://ggtraff.ru/strik?keyword=mahamrityunjaya+mantra+in+telugu+pdf+download In PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/bomunosawukub.pdfIn PDF document text
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/pubetagefariwas-rupudojibe-malexutaful-pimeposijepitax.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/4450472.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/ladefubit-tafojapumepokan-vowupe-zidedix.pdfIn PDF document text
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/0b81e133d03a436.pdfIn PDF document text
    • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/1f9b313.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/ronufebe-fazabewoxifuli-mitosi-sobonatifa.pdfIn PDF document text
    • https://punadojum.weebly.com/uploads/1/3/2/6/132680976/nijeponot_mejaradew_dexalovati.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4916/2654/files/58324630339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2392/4885/files/a_cup_of_tea_by_katherine_mansfield_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4386/3198/files/14870869442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/2741/4171/files/noxegijagefig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/5171/7286/files/33643679617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/9849/8981/files/63663492710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5123/8047/files/honda_civic_engine_swap_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3625/2072/files/free_simplicity_s110_sewing_machine_manual.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59CB 5432 bytes
SHA-256: 10c74731843d69404a1c916a643a4d58c5430e5dbd7c79df770cc7c548ac4fa9
font_01_sfnt_off00006c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C3A 11256 bytes
SHA-256: e63c3a0a83c67c3d8b18ce4eb22583058eca050e687421e9da50ea48039d609a
font_02_sfnt_off00008af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF2 13716 bytes
SHA-256: 8dc7de95134cda1e0a4d2824da5c18a87eec71210f8a54dfb531ea8ecfe3faf0
font_03_sfnt_off0000b65b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB65B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
font_04_sfnt_off0000c45b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC45B 6964 bytes
SHA-256: b956b5ad63db46aca763466e8f21e435a10014e5569603867506856954d14756

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