Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b0574822fae82c8…

MALICIOUS

PDF

53.2 KB Created: 2020-08-11 07:33:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 60c19dc27978fec95d7a83f988f19ba2 SHA-1: b0e7ab6dd987778674203edcc1216d1d8b84a61a SHA-256: 0b0574822fae82c8287a183a8a3adae64ed7307776784266b7cc2235aec3e3bf
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.ru/pify?keyword=adapting+to+obesity+with+adipose+tissue+inflammation+pdf In PDF document text
    • http://sovisomod.midamericatruckdrivingschool.com/uploads/1/3/2/7/132741555/voten_safinol_tewivaraguxexuw.pdfIn PDF document text
    • http://files.saltlakeconference.com/uploads/1/3/1/4/131406885/golom.pdfIn PDF document text
    • http://files.joshuastevenpalmer.com/uploads/1/3/0/7/130775607/foxebewaga.pdfIn PDF document text
    • http://files.killjoy.info/uploads/1/3/2/8/132816158/444fa6d86d0810f.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/1/0437/5517/6097/files/rectification_of_errors_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4351/2732/files/97248581454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5123/8047/files/how_to_summon_a_familiar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7093/0600/files/3584815498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7287/9782/files/58551630154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/maxipigasuvisezeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6195/3191/files/22499350394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/tugibire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/64136275826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/36350805747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2702/7352/files/rifaseruwesubemefil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9929/0776/files/codex_space_marines_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/66817475374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/49657769151.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_off00008e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E2B 5684 bytes
SHA-256: 2850bf6250a168b2e6e1cbfe580ccde998e40bed19cfef1a978cd105f6f48536
font_01_sfnt_off0000a16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA16A 11648 bytes
SHA-256: ecc3306c41cbae9ccabc7d004613ba1090f1ee39c8470834409e5f47ac096d2f

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