Malicious PDF — malware analysis report

Static analysis result for SHA-256 6690a8a000433f50…

MALICIOUS

PDF

41.8 KB Created: 2020-10-17 15:50:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0ddf12ecc3d62fad173d8a2d214c2cde SHA-1: 71032372768e2ac487d4dd794afea290e38f0f57 SHA-256: 6690a8a000433f50de55f7fe2ca560d6decec28bdb5f4d01a779cbd6ee6d5803
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://ttraff.me/123?keyword=download+video+format+factory+full+version+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4378852/normal_5f8a5dda8ce07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369317/normal_5f882d04618cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374022/normal_5f89b791ce043.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374521/normal_5f8a25d055482.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/zikarab.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/bewomo.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/nanalu.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/wimejovara.pdfIn PDF document text
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/c2099e721b.pdfIn PDF document text
    • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/b971553a62f9282.pdfIn PDF document text
    • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/5854702.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7024/1953/files/ergorapido_electrolux_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8750/4583/files/vinurabekewujefozasosif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9961/1047/files/david_bisbal_te_mueves_tu_se_mueven_todos_letra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1058/7291/files/rugijoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0240/3750/files/vazum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3996/0487/files/mumurumanazoradafixudasul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5219/0881/files/40101913066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5916/2521/files/13519238423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4386/3198/files/5227456073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8826/8449/files/photo_essay_rubric_guidelines.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6531 5420 bytes
SHA-256: 12bb9e29e9ccdafabf602d37b5734496628085d465fc71865549931d53af1f0c
font_01_sfnt_off000077a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A5 9912 bytes
SHA-256: f0847f71dba0660504b9e4c79c7281430e376d8cdcac8ab21627e85021bb4dc0

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