Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c0fb2c2e59c345c…

MALICIOUS

PDF

110.7 KB Created: 2020-10-17 16:14:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 066121e3ec229712b99cdca16583aba1 SHA-1: 3d4fb8504212cc771fdb4e28190bfc73f0c385ba SHA-256: 3c0fb2c2e59c345c9d44e1b52fa0a458399cf92ca7462fe78eab6e2ec73ad9a6
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external PDF files hosted on Weebly, suggesting a link farm or SEO poisoning tactic. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that is also present in the heuristic findings. No scripts were extracted, but the presence of numerous external links and a malicious redirector indicates a high likelihood of this document being used to distribute further malicious content or lead users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9895

Heuristics 4

  • 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.
  • 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.
  • 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://gettraff.ru/strik?keyword=paper+doll+printables+and+clothes In PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/nakugirupexo.pdfIn PDF document text
    • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/2531199.pdfIn PDF document text
    • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/dfe5471fa8.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/d8065cd0ebc23d.pdfIn PDF document text
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/jazapoxutob.pdfIn PDF document text
    • https://fupexorugukemig.weebly.com/uploads/1/3/0/8/130814763/1823597.pdfIn PDF document text
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/09f15.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/vugitaxovuwitukesat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/4837/7754/files/96482934536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8972/6107/files/iphone_x_wallpaper_live_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5895/2862/files/furorapesebuxarar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3013/8010/files/tobomolulesurejosozexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4078/3008/files/71554131087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5986/6521/files/hallmark_call_box_and_fire_hydrant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0041/3346/files/xamosuxowarufonutow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0432/0154/files/talopefivijavujovunezosiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2536/files/renatutanujewuzeli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00e47d1f-2383-4f78-9432-766bbd445b76/74785014477.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a37b1e19-0f09-4dec-8533-53d31b90d8b6/vilawebatabazale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/334a6d8c-8b29-47bf-b011-a7896f31f4d9/pekexo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bfc7ed2-b5e0-4050-93d0-df6a8646c6d0/2468954851.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b6220d-1dc3-4b22-b0c0-eb4d4562f86e/kidovegun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e774204e-3360-44ad-aee5-b187bbae2583/vesusalaxav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ca1f821-66f8-4d3b-8681-b81201e00203/sudewodewitediverosuwe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f9837ef-69ee-4c90-8355-f2fd0b021d75/wozararotiwuri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9edaa6da-f0f5-45c7-8963-c61dc8a4415b/sejobododa.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000145bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145BF 3216 bytes
SHA-256: 581e4e43374d5e8d4d4153e11b0efecc0a9e7f952374f5c895036351d137f214
font_01_sfnt_off00015147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15147 5300 bytes
SHA-256: 44c9e50bc923dbd41d0f933e3b71827045c95c0205b00f40d2a11a7146af9e11
font_02_sfnt_off00016337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16337 16700 bytes
SHA-256: 423ed1a1297126d21eaf9450cdd11574216e007d01817d8fa031ecd7e131fad7
font_03_sfnt_off00019574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19574 16132 bytes
SHA-256: ccf879661c26e8d85a43d4fcfbba60320246430dcbf46b047d24072eb45b37a5

Open this report in the interactive analyzer, or submit your own file for analysis.