Malicious PDF — malware analysis report

Static analysis result for SHA-256 93474c1215df62d5…

MALICIOUS

PDF

66.1 KB Created: 2020-12-04 04:39:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c083d113831c3cd44619032ad6800175 SHA-1: c00b2c45a5a1ead07b5cd348c9912c8e5840c25e SHA-256: 93474c1215df62d5181dca7eb733beb712fb13317ae8ccfb6b0bad333d38ba8e
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a link to a known malicious redirector, traffmen.ru, which is likely intended to deliver a malicious payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and the presence of a malicious URL suggest an attempt to exploit users through social engineering, likely related to gaming tools.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffmen.ru/123?utm_term=roblox+build+tools+script In PDF document text
    • https://static.s123-cdn-static.com/uploads/4484363/normal_5fc43fad656a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454289/normal_5fab8d08adf10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463287/normal_5fc0931456c89.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/5b323e20-6ee5-403a-a3e4-49cc79a08a43/44550176255.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5988e7f-9a2d-4fcb-a2d8-e296db7dc1c1/conversion_mm_en_dm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cda5d7ca-67c2-4462-843f-8c340e646494/iphone_7_plus_jailbreak_10._2._1.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc505c01c8c7413144c6c55/t/5fc84838ee804a17a1cc02b2/1606961209299/atomic_alarm_clock_radio_with_battery_backup.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d8d024b06a7eb3fedc56/t/5fc312f59d79364840f3042d/1606619894362/forest_avenue_elementary_school_verona_nj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29baa930-fe0b-4259-b814-9a25a6d662d5/emperor_s_new_groove_pacha.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e04cc89f-71ba-4a31-8c60-eb42542bf316/engineering_guide_bfa_8._2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f45a1b5-36c6-4777-bd04-baf17fe7b463/vazopatasu.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/woke_up_like_this_full_movie_free.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_off0000c461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC461 5072 bytes
SHA-256: 83816a01c18f1c341968b5ad01a45dcc22cfcd6a05d7c0e091819f9f5a9f2377
font_01_sfnt_off0000d5b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B8 11156 bytes
SHA-256: f8259614516714c9fb55bdb37e6885e655c561f71548762f9840bd051d43931a

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