Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba2e68e5b8f2f67f…

MALICIOUS

PDF

38.8 KB Created: 2020-10-28 16:30:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 299108e8ece5831612fb3650b6a9c1ac SHA-1: 9f67fa2cf15065f3bf3afcf258eed3552e38e7ef SHA-256: ba2e68e5b8f2f67fa9885f96ad0830ffc3bbb7264908f57f2ecc823f94d43f05
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.link/123?keyword=asimov%2527s+guide+to+shakespeare+audiobook In PDF document text
    • https://sibikobibe.weebly.com/uploads/1/3/4/0/134040949/gegutuwidu_netiriborilasi_pufazuviwawezim_bitojik.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/lexiju.pdfIn PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/8527877.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/f5d445.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/gamuwemixej-tibirizepi-tulufejalefol-kiziviwob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403541/normal_5f94955374760.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f873e0650445.pdfIn PDF document text
    • https://pisanofinupu.weebly.com/uploads/1/3/1/4/131437881/guxomufasozo.pdfIn PDF document text
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/4107459.pdfIn PDF document text
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/ximimebasoril-tabimotifonud-midaririkem.pdfIn PDF document text
    • https://pamaridefudeluz.weebly.com/uploads/1/3/0/7/130776324/6399387.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/zokuzodidud_bemabozerewir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f8c9b8632cd5.pdfIn PDF document text
    • https://mojipolizu.weebly.com/uploads/1/3/4/3/134318612/zoluzas.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000582d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000582d.bin)
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/editable_invoice_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0108/5607/files/ibico_binding_machine_instruction_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8972/1496/files/dederevexadafesejekexad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/evil_eye_plus_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/3734/2882/files/76038351820.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_off0000582d.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000582d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x582D 5628 bytes
SHA-256: 1dfed372de4a32d256d346172a24c95d62c710fc877c12bdfc7b12fdb4806f02
font_01_sfnt_off00006b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2A 10120 bytes
SHA-256: 701450cb43ba739a07181b5f295a1e543a54653f087df0bb16e229b7a49e5a8a