Malicious PDF — malware analysis report

Static analysis result for SHA-256 060bcb46ffdb3a8e…

MALICIOUS

PDF

76.3 KB Created: 2020-12-26 17:50:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2b7ade8a8bcd6ae124030b64899da17a SHA-1: 98f314c3fc84a0b0d7db045ae63604becdce0c4b SHA-256: 060bcb46ffdb3a8eeb9a4d60daaf3fdcf9ed54d6ac3aed4729a8932497567cda
244 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains a large number of embedded links, many of which point to disposable hosting or known malicious redirectors. The primary purpose appears to be to funnel users to external sites, likely for phishing or to download further malicious content. ClamAV and ML classifiers strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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?utm_term=top+scorer+serie+a+19%252F+20 In PDF document text
    • https://gazubulurogul.weebly.com/uploads/1/3/4/4/134493330/e415729aa98b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414173/normal_5fad3b9610c54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417814/normal_5fbd430a7db2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423714/normal_5f9b42ad0bacb.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/tunapesebi.pdfIn PDF document text
    • https://jotinebemoti.weebly.com/uploads/1/3/4/6/134681432/joxidoxixewujati.pdfIn PDF document text
    • https://senemoribut.weebly.com/uploads/1/3/4/7/134703027/48a9db7f82.pdfIn PDF document text
    • https://xafixefar.weebly.com/uploads/1/3/4/7/134714422/zikexinetalijug-bobavapu-dunuka.pdfIn PDF document text
    • https://vozunekoba.weebly.com/uploads/1/3/4/9/134902797/2e9ea25cbf.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/13a0b22f-57e3-4e79-b0f2-7749c6a3b5f1/21780345623.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45b0ca8c-af55-4254-866a-bb8598b33871/download_flexispy_apkpure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a94f8d0-b059-4da8-b7a9-17ea050d223d/duzulewezo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acf65810-9258-44c2-9df9-698169e9491f/12390537983.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/009ab6a1-38ed-4caf-a303-fa055fdfe2b7/16025069921.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27369827-33b8-44ac-9073-dbfd6c599aa4/70423837041.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_off0000e164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE164 5364 bytes
SHA-256: 8e8175d0d007ec0c433c2bf258e34e2b832c14e38d546f05040d6bd98387dd40
font_01_sfnt_off0000f3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B7 15876 bytes
SHA-256: affa1bdf07b75316f9902940085ebd32daac9cbb2ce8e60a7c52fa44d3637e4e

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