Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b809b2796473e4…

MALICIOUS

PDF

49.1 KB Created: 2020-10-27 11:34:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: c8ae2a1957c2d9d8268449887a44cbd9 SHA-1: c50a6bb48638a7a44cb3ea53af546853721132ae SHA-256: 07b809b2796473e4079b31e177ae72016e01b173cb1175be0a74d49507fca13f
114 Risk Score

Malware Insights

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

The PDF contains a malicious link disguised as a free PSN trial offer. Heuristics indicate a malformed exploit stream and a malicious redirector link, strongly suggesting malicious intent. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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/123?keyword=free+psn+trial+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370768/normal_5f8b486283aeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368226/normal_5f8ce757557eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369651/normal_5f8a17f3c221f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370278/normal_5f91a586d0d86.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409257/normal_5f96829ec362d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f890c46da6cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380539/normal_5f8f01dd395c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385631/normal_5f8ce5449b3f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389387/normal_5f969c133e920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369152/normal_5f8fb99441e0a.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/e5ceca29-7a49-40af-89f5-2c080a295849/10799543272.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fef7161-cbe4-4a93-b2c6-71267a59c289/xbox_softmod_auto_installer_deluxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7af3bb5a-a56b-4236-9c75-1af4596baf63/bestself_co._the_self_journal.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/20384210633.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/33612843279.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/ssc_stenographer_2019_paper_download.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/bible_interpretation_of_dreams.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e92d1323-8bb1-4d05-87a1-115016c2ca32/52501256221.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4047c84b-d19d-4404-8a50-6afc6730b3f7/bakojimakubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/974e58fc-3158-4d82-beb2-4e16a0734e1f/6258502725.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_off0000745f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745F 4720 bytes
SHA-256: d5a01f9a10cd7f7d781e3563b2d8ab9bcb083afa54c6e78534353fcb055ded5a
font_01_sfnt_off00008459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8459 10992 bytes
SHA-256: 61638590cf4fed2bf052037826c7496e76fbc64b3d2258c58bd5e713c2170469
font_02_sfnt_off0000a8e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8E4 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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