Malicious PDF — malware analysis report

Static analysis result for SHA-256 02eb6bb93e4002d9…

MALICIOUS

PDF

62.0 KB Created: 2020-12-24 01:01:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 3d3fbe3708466638df9f8e55dfd9ca65 SHA-1: 01f747126ca621357d221ae5d69eb9fa241f1698 SHA-256: 02eb6bb93e4002d933bf1b885954f326e923828164a1dbf8e73760f874e0f582
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure, specifically 'https://cctraff.ru/aws?utm_term=surtec+650+data+sheet'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and the malicious URL suggest an attempt to deliver a payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cctraff.ru/aws?utm_term=surtec+650+data+sheet In PDF document text
    • https://static.s123-cdn-static.com/uploads/4415309/normal_5fc79aff6e249.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417118/normal_5fab60bc230bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384468/normal_5f907d4841e1a.pdfIn PDF document text
    • https://cdn.sqhk.co/kapidibewomu/yhgaVid/50458521531.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/genijusemu/zuxafo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88a45e1b-1545-49df-8c4b-ac36d11b6133/thane_of_riften_weapon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36076766-b070-456a-ac65-e65d4f549bb5/mektoub_my_love_intermezzo_full_movi.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/12106972597.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/94444464424.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/myrtle_sarrosa_pictures.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2055c426-fd7e-47b1-b226-555852bb59a8/69805940237.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_off0000b76c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB76C 5516 bytes
SHA-256: aae9b2d9875d3525415df18563af800260c6be8fe61514f046de072307392eac
font_01_sfnt_off0000ca22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA22 9688 bytes
SHA-256: c94ad3f36e16e952c967bc93a77df62bb811bfb4917a25045bf840f56d079615