Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b74510e519890e7…

MALICIOUS

PDF

44.6 KB Created: 2020-10-28 00:16:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c8b390414e7b81a7f0443d96733cdf47 SHA-1: d907f1b1b20d84652941743f24ee8d9f72be9ee4 SHA-256: 8b74510e519890e7ca1e99c7456300797f9b569883bd33b6046db909a2a18da6
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=counter+surveillance+techniques+pdf In PDF document text
    • https://bixizevabusiku.weebly.com/uploads/1/3/4/4/134403351/c9d9fd68.pdfIn PDF document text
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/703d443fe3dc9d9.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/zotewug-furasegatevuwin-murolimudixu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/aedd9ae6-a9c2-4051-a0be-4ec12ac18892/dedowudakamajokolilox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c523325-53ad-441c-a4aa-f11d3406c846/pejesaxowutavosafukamuze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b06878b7-36a5-457c-841a-9741de722228/5332252061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2668/4320/files/vw_passat_2001_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/8422/9029/files/malobogexukapapafozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5321/9479/files/44496920179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4658/3970/files/kinguser_apk_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9464/5173/files/83995397935.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f46c8330-564c-46f3-a16c-3b3a156c6c03/divuzek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac97facd-ab46-4ead-85a4-31f9f560cad5/kidafow.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/15914577075.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/cancer_epidermoide_pulmonar.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/english_speaking_course_gujarati_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/53975133705.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_off00006e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E84 5336 bytes
SHA-256: 6294039460ce6cf942893d99a633911a55ca1967011ff5eda9cf970de397421b
font_01_sfnt_off000080a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A3 11164 bytes
SHA-256: ef70ed3bada1d8199106931ec7ea559d3ff02d927275aa901d6b8143de62f959

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