Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7bd7daff9a49b55…

MALICIOUS

PDF

274.1 KB Created: 2021-03-18 19:55:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8279fd4ee85af95605f4cb8681ab590c SHA-1: 155c3a70ea74787e1cf622a9c0b83a9bbdeabf39 SHA-256: e7bd7daff9a49b55ec53037bb050ae7264131ed9b8868be3350374c00c143732
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9890

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://yafferge.ru/123?utm_term=everquest+progression+server+leveling+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388420/normal_60194f5366bf1.pdfIn PDF document text
    • http://vesimawamom.66ghz.com/piriformis_muscle_hurts_when_walking.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454822/normal_5feb992f085d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419452/normal_601bebb20a3f0.pdfIn PDF document text
    • http://xelutorul.iblogger.org/gurudefuru.pdfIn PDF document text
    • https://fixupikavejezop.weebly.com/uploads/1/3/4/3/134392539/vemojevifirode.pdfIn PDF document text
    • https://bakusiluvusefe.weebly.com/uploads/1/3/5/3/135309983/e6c03c5ca.pdfIn PDF document text
    • https://wozagadukuwa.weebly.com/uploads/1/3/4/4/134483903/zituvimer.pdfIn PDF document text
    • https://tofavasexivefet.weebly.com/uploads/1/3/4/5/134578877/sisemeganipefopazar.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/juzinaramip/40293770061.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/mapipuwujiwo.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/nixotixomorinexefuvuguxag.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/80269764366.pdfIn PDF document text
    • http://raruwubobegu.rf.gd/82988207667.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/gosufurepija.pdfIn PDF document text
    • https://d2d87fd5-5f4d-49aa-ab3c-2263ce4b5d22.filesusr.com/ugd/9169d2_a8516ad5fc2f42e4a8bcfc60e568a334.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/pub_quiz_questions_and_answers_capital_cities.pdfIn PDF document text
    • http://fegumipidibig.rf.gd/engineering_guide_300_vanilla.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/gobejusadegowuwetudo.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/18609021579.pdfIn PDF document text
    • https://46c0acaa-de7d-4f46-84f0-c2cf1d8ff7d9.filesusr.com/ugd/ac1638_22fe6040fde84e9889baa3c79c6b22fa.pdf?index=trueIn PDF document text
    • https://cb38ef3f-1f2c-4622-8962-dca261660167.filesusr.com/ugd/3ae201_af14fad8aac54f2b8c40452da8aaa20b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/ordering_numbers_worksheets_year_2.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EDD 252588 bytes
SHA-256: 923a987c8aca4d7d5887c3ae9a0b6f1369702346f867fcb22ccf61c2ef3442f9
font_01_sfnt_off0004024f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4024F 5060 bytes
SHA-256: 68df5175c38f8119e4401abee6be25e71f0b7b926229a785182aa6135b30a2b3
font_02_sfnt_off0004139b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4139B 10832 bytes
SHA-256: 7fca498a2682ff9cbf3ef0447b70a5b1f1b86f767323a8fe1eceb880e686ae70

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