Malicious PDF — malware analysis report

Static analysis result for SHA-256 f42cd07ade4ef00d…

MALICIOUS

PDF

39.9 KB Created: 2020-11-01 09:44:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 30b455ed94afab05c82b897ea9229c1f SHA-1: dc5f4f652fb3169bc704293a6986cd8029b0df95 SHA-256: f42cd07ade4ef00d2a91cd5ea8769e1bd469f241d0a91572b288873a49782db7
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and 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 4

  • 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.
  • 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=hobo+7+heaven+unblocked+games In PDF document text
    • https://rojusonevupa.weebly.com/uploads/1/3/0/8/130814232/taxanidasuzepa_jotedi.pdfIn PDF document text
    • https://norumevi.weebly.com/uploads/1/3/0/9/130969469/697bb0a10f4a067.pdfIn PDF document text
    • https://gemuvubakada.weebly.com/uploads/1/3/4/4/134494784/cd1a61cd94.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/gakita.pdfIn PDF document text
    • https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/16db5c9.pdfIn PDF document text
    • https://lezunodukulo.weebly.com/uploads/1/3/4/3/134341823/07ed53.pdfIn PDF document text
    • https://limisakaxenit.weebly.com/uploads/1/3/4/3/134371081/63cf44fd.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://cdn.shopify.com/s/files/1/0438/2808/4896/files/what_is_kiwanis_music_festival.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5091/6761/files/janiveledoxavoragigupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6564/5473/files/ncaa_basketball_statistics_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7839382-1a7b-40e8-a75a-6ce5ff212572/weziziroruzazisigetox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8021/5449/files/32932517090.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_off00004ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EA8 5316 bytes
SHA-256: 2b6f560a46abb1e4486e10389495dc3c9b91a21853155643873bdd9775b0243e
font_01_sfnt_off0000608e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608E 10548 bytes
SHA-256: dd436a7d6da262bb32b97fc24c7e50282b555ade955b0cde6d0c5d37ff1ac473
font_02_sfnt_off0000849b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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