Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5dbeed274ac299e…

MALICIOUS

PDF

83.3 KB Created: 2021-05-18 05:32:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afd12c99e1d9365ff4cd0f22feb398c1 SHA-1: d121b218193c2bad692e783f2e94d2eb8803c647 SHA-256: d5dbeed274ac299ed46faa1f3e273c4aad696eb1ca269fbf3b7eee04231ff213
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, with one pointing to a suspicious domain 'jumiwimov.ru'. The ClamAV detection and ML classifier strongly indicate maliciousness. While no scripts were explicitly extracted, the PDF structure and numerous external links suggest an attempt to redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jumiwimov.ru/strik?utm_term=how+many+pages+is+a+court+of+mist+and+fury
    • https://ladukupubavar.weebly.com/uploads/1/3/0/7/130776836/d7de90cd3361a.pdf
    • https://motovosagufa.weebly.com/uploads/1/3/4/5/134513155/wevevi_fuvujeripekupo_kovojobusuje_baludasisuwal.pdf
    • https://vozunekoba.weebly.com/uploads/1/3/4/9/134902797/2271326.pdf
    • https://wujadagepixiv.weebly.com/uploads/1/3/1/8/131856877/jixitubimovejo.pdf
    • https://fujuzelos.weebly.com/uploads/1/3/1/3/131380065/xefopoziruxiged.pdf
    • https://fuvobavan.weebly.com/uploads/1/3/1/6/131637325/gejim_ganopajonamimug.pdf
    • https://wiguvebilef.weebly.com/uploads/1/3/5/3/135389097/70f23aa55cecc.pdf
    • https://raguwamirib.weebly.com/uploads/1/3/4/6/134630778/pasamuwaladokiti.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mukutud/red_claw_emperor_scorpion_care_sheet.pdf
    • https://s3.amazonaws.com/benubapopikaj/83747035076.pdf
    • https://uploads.strikinglycdn.com/files/f58e470b-07c3-4cb5-9954-c4a62e22a835/when_you_know_youre_wrong_quotes.pdf
    • https://s3.amazonaws.com/musokejixami/gekagisegiwazulipuz.pdf
    • https://uploads.strikinglycdn.com/files/0eb19542-ea62-4c83-8da1-6a7054eaaa0c/73251690489.pdf
    • https://uploads.strikinglycdn.com/files/cb8553fb-e9dd-4454-9387-3db473b0f67e/beginner_crochet_youtube_video.pdf
    • https://uploads.strikinglycdn.com/files/02d10e0c-d26f-4c3e-ae7a-76e767d7a549/who_are_the_main_characters_in_dead_stars.pdf
    • https://s3.amazonaws.com/jozaponi/que_significa_el_poema_espero_curarme_de_ti.pdf
    • https://s3.amazonaws.com/bejenosugede/how_to_start_a_baking_business_uk.pdf
    • https://s3.amazonaws.com/wozoxub/brackets_emmet_extension.pdf
    • http://vapufebifuv.epizy.com/dufumabexinujavizuxusidi.pdf
    • http://towirasoruxapob.rf.gd/rcog_guidelines_for_endometrial_biopsy.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0aa.bin
ff358525adbcacab08c095503af3a2383b16b44b1c8f2776aa39fe4b608e4912		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AA 5596 bytes
font_01_sfnt_off000103b9.bin
120070e30b048fcf0db9607f8fb1a4b53e056c5a3d67e75f26dd0c7c02c15a6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103B9 10284 bytes
font_02_sfnt_off00012728.bin
7e4daa3367bdcff7cb3a03c20d3f8d640c49efd117669a0dc39ead261ce0ea43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12728 16984 bytes

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