Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1f9b291e58b38c…

MALICIOUS

PDF

70.0 KB Created: 2020-12-02 14:40:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 401842b48ad2c2ceda5b520b19731561 SHA-1: 23f8b13095bd23133831ea60bf4e9da7fd2dfc78 SHA-256: dd1f9b291e58b38c5a37d005a4e7425f1286465691831a9b5c0c9e9c821b09f0
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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://traffine.ru/strik?utm_term=averages+worksheet+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4487903/normal_5fc5eb0d41d14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384164/normal_5fa1ac64b4da1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402297/normal_5fa9e3f80e729.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f93a69b62b18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369660/normal_5fa22e6e3400b.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/wuxupewu/emporium_melbourne_store_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e99fa13a450babf41659/t/5fc6f2d60623334b0c52edaa/1606873815420/26780189714.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc390e0f9866f3fd2e4e56d/t/5fc6c5a656cd4459b3a2df5a/1606862247088/33553797548.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc27aecc14dfd36fefb8ed8/t/5fc752c6b7521d608a43c9e1/1606898375233/sushi_cat_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae8e0620-e773-43a7-bb04-bdffbe8457e2/66381878745.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/32447037872.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc506301c8c7413144c7057/t/5fc5393cf8cdb769c68d3ab8/1606760764796/clash_royale_cheat_mod_apk_download.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/64618440460.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e0febe9b6939510aa6a3/t/5fc2bb5e3485235c862092d6/1606597471628/50843182534.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/932a4443-9eea-41e8-ba46-ef375adb20d4/23440031411.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/gototuralonid.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D0 5476 bytes
SHA-256: eddb59506b33216f617a47220737b6fac93722a7c6b5b0f1b296cd71ec4abcd9
font_01_sfnt_off0000e78a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78A 10596 bytes
SHA-256: 7d394f207f019c5ec107336f46aee457e28886d144a9c087b652ae5b1af8e72e

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