Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ac01c16509c1ac…

MALICIOUS

PDF

77.6 KB Created: 2020-11-30 12:05:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fe0b4596a21498a60d2f6b6a5e83e930 SHA-1: 28004449a4646403b153b49e161c183303c8adde SHA-256: 14ac01c16509c1ac0affd2c8a71ca4216681c59dc222461b275578fbeeadab4b
154 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 ClamAV and 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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/strik?utm_term=jamie+moriarty+jockey In PDF document text
    • https://static.s123-cdn-static.com/uploads/4469104/normal_5fc49bcecd8a2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/janodojivi/free_vc_for_2k20_xbox_one.pdfIn PDF document text
    • https://s3.amazonaws.com/suzeduselu/manual_gaggia_classic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2170d9f-8313-4b54-bf52-d07adf8cfd94/fozetazabepajajezubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adc4910a-c2ae-48b4-b7fc-868b08225866/29406083842.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/76290868019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc92be11-aa0b-49da-9412-a83b9e65d09a/30768055594.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/anne_of_green_gables_ebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e0123d5-2bc7-4b37-9a34-c84fa4a83477/thor_jane_foster.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/pabodepedadedolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00162e1a-88cc-49e0-81ba-9bdedf19239a/305741256.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/50977868003.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eaa5846-37c7-4194-92c7-4e6a92c0592e/125_as_a_fraction_simplified.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e834a495-62fa-4512-94c2-5cb9c00d7a04/46084468032.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/lolujajekifitilegegobilid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fc33df0-0814-4b0a-b890-fe06b96b61aa/24115947454.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe20fe43-eb75-410e-98a0-b9c312fe7877/kusubesajebujefajuzikegak.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_off0000e55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55F 4964 bytes
SHA-256: a30aa5eee023b6279b5e5579190583bb56a9cb354a8560f6347efc181782f8da
font_01_sfnt_off0000f63d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF63D 2092 bytes
SHA-256: 13678a14b930e6d42e11b2ac41b13981c2c7f5938cc30cfb194ad51886f1f1dd
font_02_sfnt_off0000ffe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE2 11904 bytes
SHA-256: 2a989af5fc5ebaf047cc38ee2950af902cccc17e3bac994f5f9fe8a6276e338b

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