Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0e57cd6fcb56971…

MALICIOUS

PDF

49.4 KB Created: 2020-10-06 17:27:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e505cce1fbfdd74ebdd3b1c62a3dbd7e SHA-1: a919435c72b08793c1a905cb0aa8e8da073445c4 SHA-256: d0e57cd6fcb5697101e13392fe58752aa07a6144da6dca59651d2c811beed34d
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/pify?keyword=f+pattern+resume In PDF document text
    • http://files.lmairtech.com/uploads/1/3/1/0/131069753/6648897.pdfIn PDF document text
    • http://bokep.amcbfoundation.org/uploads/1/3/2/6/132681300/b458f9026b.pdfIn PDF document text
    • http://pomavu.kelvinf.com/uploads/1/3/0/8/130814338/0049dd72d813e49.pdfIn PDF document text
    • http://mupuje.merakicowithlove.com/uploads/1/3/0/8/130874253/koduviniwalelum.pdfIn PDF document text
    • https://site-1044104.mozfiles.com/files/1044104/66491440364.pdfIn PDF document text
    • https://site-1039688.mozfiles.com/files/1039688/28304678583.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://uploads.strikinglycdn.com/files/7331e530-ff77-44e7-b2a4-ac17e21f6468/46849712972.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa7a19eb-e58e-4f25-9a98-efcc9e1d8edc/gojofojelazujemokixowaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04ccc9a9-9506-4533-8598-f029cdac8b50/dinab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d809460d-0a3d-49b8-b76c-be23490e4731/dubiwovam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c1bdf71-20f4-44d5-af2f-9e54a58e9a75/diwimixijot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1216549d-6ce5-4fbe-bc64-c6130f426f4b/vemusapogidiwedadux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d65bac1a-829e-45ad-a295-1e0ddba5778f/retamugobikuwar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4566a95d-72ce-45ae-965f-316d04300358/56187007238.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a89ee90-9483-4557-8676-c55f830793ed/putatidumomawonijafasox.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7837 4612 bytes
SHA-256: a15c3987d33a5d86d2a2c1694bc1a07ef9abef09bd85108a6bd173e5ab515ee3
font_01_sfnt_off000087b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B7 10284 bytes
SHA-256: 3269d56982df708ad00ed45bf28bee6dfc8d1fc7524f14b81847d248200e8d47
font_02_sfnt_off0000aad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAD0 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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