Malicious PDF — malware analysis report

Static analysis result for SHA-256 c32ee9bd1bc1fe5b…

MALICIOUS

PDF

46.0 KB Created: 2020-10-02 17:40:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1e701b2d80a74a35b791b38305959223 SHA-1: fc309e32a9cbda63b91c9a1df659a9bfaf67e338 SHA-256: c32ee9bd1bc1fe5b5bb5c25e587ed29f5c882a768d466333e5eb648476fbd0c7
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://cctraff.ru/strik?keyword=free+operating+agreement+template+pdf In PDF document text
    • http://fazel.familyeyecareofgeneva.com/uploads/1/3/1/6/131606490/zelunedojotolaz-saduzuxidu.pdfIn PDF document text
    • http://files.globalezorder.com/uploads/1/3/0/7/130740573/gapewop_bopetosopajopal_lideje_debex.pdfIn PDF document text
    • http://files.itdynamicsct.com/uploads/1/3/2/7/132740327/ladezarima-nakiluvakolatet-nodigipuvisevin-fomurazo.pdfIn PDF document text
    • http://nuper.nelspruitlighthouse.org/uploads/1/3/0/8/130814416/3c30541d9.pdfIn PDF document text
    • http://vodedusof.samthoughts.com/uploads/1/3/1/3/131383837/vabusikerakonugaji.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/640b5794-d2f0-48f0-9575-a11283757d98/gejememafiwop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7efef0b2-63ac-42a4-8531-5af65e1880fa/95924077785.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd53ecf7-fc48-4526-9d36-caab5f025506/76971095130.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/000c09c9-5aa5-41f3-82b4-084519f1c987/paziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8948/8792/files/xekexejatumosidufadopaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8124/4058/files/duxibaxopasamuwikevewapim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4087/2350/files/19685735230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3591/7473/files/battle_angel_alita_volume_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/dell_s2340m_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7202/3445/files/ihome_manual_ip9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6021/9035/files/science_answer_key_grade_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0709/0581/files/zukikosobuzaba.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_off00006a38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A38 4928 bytes
SHA-256: 31eef293abfa438e6881e0aa260714f2478a56980f5e00a90496f96e4aae22a9
font_01_sfnt_off00007adf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADF 9780 bytes
SHA-256: 90b571c20f74a347c3d6542c858926b0de784c1ef90744154b24498a5d383f65
font_02_sfnt_off00009c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C4F 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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