Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb02a0c97e93e2f…

MALICIOUS

PDF

76.4 KB Created: 2020-12-29 17:02:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7e40365d9da6cd578e15f747f1fb0ca1 SHA-1: 9a3fa95b5f41be82ed1114bd0a0dcaeae7f678ad SHA-256: 0eb02a0c97e93e2f2c49e867738ce242cbff7012b10698c248284c14887b5a74
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure for 'Sonic the Hedgehog' movie downloads, suggesting a phishing or scam attempt. The presence of multiple external PDF links further indicates a link farm designed to distribute malicious content or traffic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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.
  • 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://ggtraff.ru/123?utm_term=sonic+the+hedgehog+full+movie+2020+free+watch In PDF document text
    • https://cdn-cms.f-static.net/uploads/4418746/normal_5fea39eea435f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420432/normal_5fad74828401e.pdfIn PDF document text
    • https://cdn.sqhk.co/tesikotuk/iZ3iekD/kevakapin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365657/normal_5f8c85cb4b2a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449602/normal_5fb45b2965ae7.pdfIn PDF document text
    • https://cdn.sqhk.co/filomada/1gjjfgi/zojazefu.pdfIn PDF document text
    • https://cdn.sqhk.co/kezulegol/RJPQm11/emergency_ringtones_free_download_telugu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409123/normal_5f93c0fc998e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419654/normal_5fa379e55472d.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/3385360.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388412/normal_5f8eb9c9410ca.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/f98jjge/world_cricket_battle_game_play_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459170/normal_5fbc88483da61.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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_off0000dda1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA1 5668 bytes
SHA-256: cabe4621b48e04411489b379012cd1c0cc36484c99fae91a1bb13ade2b1e601d
font_01_sfnt_off0000f0c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C2 10948 bytes
SHA-256: 47a3c9942f238512fa125bb87255e22fefb2411506b16286ce79e776dd964a7d
font_02_sfnt_off00011641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11641 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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