Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1f6c9ea5003dfe…

MALICIOUS

PDF

39.3 KB Created: 2020-10-22 17:11:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-10
MD5: 84cb73b210fe2f23fc265f0fe58574e5 SHA-1: 5da839268a1d302d340b230e4736077f43ef202f SHA-256: ea1f6c9ea5003dfe3b91dde1aecf934a9099df09441c9da349c429ebeb936604
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/123?keyword=download+apk+panzoid+terbaru In PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/dafakuv.pdfIn PDF document text
    • https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/gabakovolobi_jadezoranededo_pamomug.pdfIn PDF document text
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/cfa6e37f0d0.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/mujijarawenuwinosif.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/4994528.pdfIn PDF document text
    • https://pesajupamobe.weebly.com/uploads/1/3/1/6/131607203/darotudoluxukefu.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
    • https://moguvikob.weebly.com/uploads/1/3/0/8/130874292/vitufimek.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/2de010d282b813.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005cf8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005cf8.bin)
    • https://cdn.shopify.com/s/files/1/0503/3944/6969/files/xuxowog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8527/6348/files/restore_whatsapp_chat_on_iphone_from_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3897/3345/files/contract_law_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5779/3192/files/xiwuxetodivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/3272/2599/files/jusogadimekareruni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7131/4352/files/facebook_app_crashing_android_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4027/9205/files/instruction_set_complexity_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4647/2342/files/face_recognition_python.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/143ffda8-95e5-4b8f-a0d3-b458ce262e63/lavurenepalolejarap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acc22040-9ccf-4be9-9ee8-c5d698d8cd77/jividonawis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c17c8d06-6006-46a6-9ba0-cc1b0dab1c5d/nebasuxosuker.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_off00005cf8.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_off00005cf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF8 5120 bytes
SHA-256: c517c53208b328c68936f374ed8d9f2595e91f82f1616d60068ecc8ee40d7932
font_01_sfnt_off00006e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8C 9768 bytes
SHA-256: 5ab43bcaa97ddee769957b7f840bb8ee920d6bde394883cc8ceb4038a29b6c9a

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