Malicious PDF — malware analysis report

Static analysis result for SHA-256 3096e1c9ec709aed…

MALICIOUS

PDF

85.2 KB Created: 2021-05-22 20:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9919dc4b81dae4ae7c369bec28ff4faf SHA-1: 8b9f8a094c8b1c2c4498bda41533e79113c2c4e4 SHA-256: 3096e1c9ec709aedbbebdc2e116cbad9d23bf22817ea153b45f7f8bc87e1ddae
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://jottigo.ru/strik?utm_term=bordereau+de+paiement+de+cotisation+cnss+pdf+maroc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461234/normal_605cb89deb1df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456667/normal_5fdfccdcf2193.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450440/normal_6024086eccb2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466366/normal_5fdbc30ac0f24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427076/normal_6035205395856.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452373/normal_6063cce35b5b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410679/normal_5fff4f6f38232.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392854/normal_600316a9ceb04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417321/normal_602f9c34b8475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495994/normal_60435e39ac6aa.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/zemigiduwagafu/55265579055.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90fc354b-ddfd-4408-b181-24a59abffb5c/casio_g-shock_rangeman_gw-9400-3dr.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/34695023576.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/xomuzumusum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6330d20-2c3a-444d-aab7-22f86860a300/78678476834.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/how_to_write_ad_copy_for_instagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b4862ca-ebd8-4b76-b55a-fb0e4ce55d90/opponent_process_theory_of_motivation_quizlet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/309fa9fc-20fd-448e-bf40-10aca505b91e/benezitenoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70dff1e0-4b83-4f8b-b021-5147bea5c548/how_much_does_a_kirby_vacuum_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/army_games_for_windows_8_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58e4fccd-5e1a-45fd-982d-4b50b9506aa6/34343818111.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75097c89-ae3b-448e-8891-0716ab30b754/how_to_replace_belt_on_kenmore_70_series_washer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74deab64-a20d-40c6-9a89-a90094411542/24955069510.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beb6f545-ac16-4cac-9a50-b28da6894d36/27245117841.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_off00010c84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C84 5320 bytes
SHA-256: d25dab08a096b41fbf303911e09afb2c24ec62420afa0f296c0270115af52ac0
font_01_sfnt_off00011e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E84 12456 bytes
SHA-256: 44edf9be885d54bbfc3f5d29be5a9a74c765fb9ec82f81364bc6883e9cde1239

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