Malicious PDF — malware analysis report

Static analysis result for SHA-256 6da924d2156b18d2…

MALICIOUS

PDF

56.6 KB Created: 2020-10-07 01:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c1a11c034a0e11defaaabe761479da47 SHA-1: e9fd1b13bd8a11f23f4d5eb6d272662a70d84b52 SHA-256: 6da924d2156b18d218a511ab32e6f3437de653e64052d5c558fbd828cc61cca1
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.club/pify?keyword=star+wars+fallen+order+lightsaber+colours+locations In PDF document text
    • http://files.slpseniorparty.com/uploads/1/3/1/3/131383733/0bba12b2e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/howls_moving_castle_book_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8401/2956/files/letter_from_birmingham_jail_audio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0385/3476/files/dewalt_dw625_guide_bush.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47c09beb-89e4-47ff-bb63-f498cd0382d7/jejonax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b5bdcbd-554d-48c9-bd48-7d2d4d557699/xavubetemujawobu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eac450d8-8b9a-4514-b50c-98ff30273c64/bemokar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b114d2b-738d-45e2-88e6-31b69efdb99f/81350590865.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58de60f8-58a5-4de3-836a-e97375c49050/xizujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50b6ebd1-2101-4b2e-957f-65efa8a85535/tafav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21682e88-bc88-46e4-bcfd-f833bf0ae627/57779255176.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84a7b424-a78f-4fb3-a535-a1d27e12d696/jarasetumev.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9240 5500 bytes
SHA-256: efd31ac6aa2250832b1e3b7893866a40ee9520b633a4a9680ae4925a58e19abf
font_01_sfnt_off0000a4f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4F2 10116 bytes
SHA-256: 402bb43031b9968379bbbd196b0dda290990b028addba6e04eadefaea27ce836
font_02_sfnt_off0000c788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC788 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.