Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e06d7928038e96…

MALICIOUS

PDF

44.4 KB Created: 2020-10-28 09:09:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: fc9c2d84788fe8ddb0ed71e9813afdb8 SHA-1: 0c68a836356c78ef0a03ee02761957068776fe68 SHA-256: e5e06d7928038e962f86ad60ec4179358019fbe82764fdd8f05f2f872aa08f54
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=call+me+by+your+name+pdf In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/9276785.pdfIn PDF document text
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/187327.pdfIn PDF document text
    • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/6492385.pdfIn PDF document text
    • https://jaketomerinojox.weebly.com/uploads/1/3/4/1/134109184/8087073.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/1/0484/2674/6024/files/webroot_filtering_extension_firefox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0888/5414/files/american_history_1_released_items_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0700/2784/files/9981376194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2469/7509/files/pidesajegoluxakudam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1294/0188/files/murder_mystery_codes_2020_new.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9829/0856/files/79597040813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/0474/9718/files/13850561218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/9875/1135/files/36955804411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7426/3456/files/10991672785.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/farixine.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/hcnr201-_000e_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/45490112428.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/phonetic_alphabet_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/engine_bearing_failure_analysis.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000701c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701C 5156 bytes
SHA-256: 50ba90fc605aaab570e9a258238e619c46d2ba60c802803abb182dd869271d92
font_01_sfnt_off0000818d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x818D 10432 bytes
SHA-256: 9235c07a6a0f702eb4649c775817e19ffc91423186dd59345a370386dd3bf898

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