Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f0e16fc73c8ea47…

MALICIOUS

PDF

60.3 KB Created: 2020-11-24 05:52:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f88221489ba1704b0e4ec393a25779a3 SHA-1: b1774c52a39d26d67f61d2c3d56a610b562442f5 SHA-256: 5f0e16fc73c8ea473aa7407db43bbe10927610a11afd7ceb712d5e543c9262ab
96 Risk Score

Malware Insights

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

The PDF file contains embedded text that appears to be a lure for a product manual, directing the user to a suspicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of an external URI suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffnew.ru/strik?utm_term=aem+35+8460+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387410/normal_5fa36274b3193.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368971/normal_5f90ec058ef29.pdfIn PDF document text
    • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/5223067.pdfIn PDF document text
    • https://weduzoviduluwiz.weebly.com/uploads/1/3/4/3/134385862/nolovopuga-jusezomena.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481402/normal_5fa751d5e88b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381544/normal_5f8d9476b5946.pdfIn PDF document text
    • https://luvikexixof.weebly.com/uploads/1/3/4/4/134481561/505e4c.pdfIn PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/zaxegatosukogab.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/1bed500d-e6b3-4ed3-b265-ffb3ba70ab4c/35265987250.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9520ee75-49cc-409a-ac52-874d8442100f/85389973731.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69f73db5-c3d6-459a-a429-1f27f6576af4/rebogitojunejilu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22bd4a37-7565-493f-9067-23d19233b0a7/heavy_rain_characters_in_real_life.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_off0000b0eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0EB 5412 bytes
SHA-256: 3a39a78a3e524330408888c4ef8b34dd93d59fb43490ffabdd78c9631ba8a331
font_01_sfnt_off0000c350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC350 9652 bytes
SHA-256: 85fd48052fe7bd2323a370cc8d657c705cc1cae559e2d5bc1448927878b5fea5