Malicious PDF — malware analysis report

Static analysis result for SHA-256 29606830e0bc916a…

MALICIOUS

PDF

77.4 KB Created: 2021-02-27 21:25:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5dc60fe8cabac2c7a154f2eee37aa0b2 SHA-1: 83776ca43f1aa28d0022b69cdd0307871fdb1271 SHA-256: 29606830e0bc916ab8953d6b3c985f97055c527fc05f00cc3edbb9173db1c8b8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or to host a malicious payload. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=derecho+procesal+civil+federal+y+procesos+mercantiles PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4501364/normal_5ff7a8178a726.pdfIn PDF document text
    • http://love-cosmetics.shop/cannon_fodder_2_manual5xhpj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401694/normal_5ffdd634bb136.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386091/normal_602caad25df13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387699/normal_60291b8fb465f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405652/normal_5fe075024d329.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/lixisariwulo/bengali_comedy_audio_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/ffxiv_blacksmith_power_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/66928836910.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/liver_transplantation_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/35459024211.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/riguwi.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/berserk_manga_images.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/29790686408.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/ziturazoza.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/tarivotirezo.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/chainsmokers_closer_hd_video_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/sales_and_marketing_manager_jobs_in_australia.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_off0000f315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF315 5556 bytes
SHA-256: d22559bef8b4b786f69215edb611523efef1422d418f421ae5fc0e52c74c4595
font_01_sfnt_off000105e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E9 10148 bytes
SHA-256: d4aefecc0fcf8fbdb5b4e3ba9ba7823bbd2bbe33b39368f7ffcda950d74f5053

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