Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30e4b240ad6e6ba…

MALICIOUS

PDF

74.1 KB Created: 2021-05-14 15:00:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5ba1db80b4a3837b3aa810b686aaee89 SHA-1: 10b0cd033e91ee1e8a8fdc303b0b6d43bff555f9 SHA-256: d30e4b240ad6e6ba029b7840823d0416da8a59eddd64e48057ecba39bd895c89
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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://jacksth.ru/strik?utm_term=bose+wave+cd+player+not+spinning PDF link annotation
    • https://kotirilu.weebly.com/uploads/1/3/4/3/134332744/3764464.pdfIn PDF document text
    • https://xezorilim.weebly.com/uploads/1/3/4/5/134588859/gukemulupar_joperonavub.pdfIn PDF document text
    • https://sumajodezidozi.weebly.com/uploads/1/3/3/9/133997227/b244e.pdfIn PDF document text
    • http://save50it.info/zalegamexupineyznz.pdfIn PDF document text
    • http://vienvozvrat.site/photoshop_shortcut_keys_in_hindiyr2vp.pdfIn PDF document text
    • http://reflectionss.space/giwagazaketivd3qi.pdfIn PDF document text
    • http://tranquils.space/59867399466udvuz.pdfIn PDF document text
    • http://evgeniy-semenenko.ru/buying_a_used_car_checklist_autotrader1iskm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://18cb0a1d-3822-48a5-9ca0-56465202bc9b.filesusr.com/ugd/96564c_a2f00b60ed514bf78c57dad495c18741.pdf?index=trueIn PDF document text
    • https://5a98ae10-8c7e-48da-b83f-9bcbc644cfa3.filesusr.com/ugd/9a8764_07ae67120ec14084a260d8c9e5c7dc29.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/vuribemozox.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/74768050606.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f65b75ba-0989-4c36-a6e0-e2b33a73b027/how_much_do_developmental_editors_make.pdfIn PDF document text
    • https://b9ecad59-ee1c-469f-8402-ddbad3bf215f.filesusr.com/ugd/84dab8_58ada357f8fb4c788bf22e7bb51766fa.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a43ad42-3ab3-4f6a-a83c-aa55ed910c6a/movosefixifujepebomaf.pdfIn PDF document text
    • https://9a86171b-24d8-4f43-8717-687e75280c8f.filesusr.com/ugd/6234e8_5683a68683484a9a8a712868b1d1f5b8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/34bdf6c5-55ef-4735-969a-e4d885d8ece8/sexigujasepapisatosaliv.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/36607952618.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/vomaxumuwatefevanavobez.pdfIn PDF document text
    • https://9afb1793-bc57-4514-bb46-74e980466609.filesusr.com/ugd/11f207_27d6ffded1434a45955ee5687f11e155.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xisefowu/knife_of_dreams_audiobook_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afda30cc-af20-43be-99ff-d8542c2eaea6/romeo_and_juliet_prologue_analysis_love.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e45e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45E 5544 bytes
SHA-256: c7a602dbdf31a36def147aee44d4e0a2f421d1f479e98eb352b09d391b5affae
font_01_sfnt_off0000f76a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF76A 10436 bytes
SHA-256: 2bdc4951144a947cbefd47e21eb18bfbf6d1bfb451184944db5a50031464fa33

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