Malicious PDF — malware analysis report

Static analysis result for SHA-256 49272efb6581d5ae…

MALICIOUS

PDF

78.0 KB Created: 2021-06-07 04:11:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 7e2ec6adb1618cde14628679d6298a4a SHA-1: 49a069c4b1974b96c2dd8dc3130d338439489ad1 SHA-256: 49272efb6581d5ae946850930ba3ab172dc310a5ec86cdba149b679eb1ff04e8
194 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The presence of a 'Netflix' lure in the document body, combined with the high ML classifier score and ClamAV detection, indicates a malicious intent to redirect users to potentially harmful content. Although no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of a malicious workflow, likely involving spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dugedepap.ru/123?utm_term=netflix+android+version+requirements PDF link annotation
    • https://gulekizusivo.weebly.com/uploads/1/3/5/3/135392766/ef17927bb4e6c.pdfIn PDF document text
    • https://sofuwikomu.weebly.com/uploads/1/3/4/3/134308783/jonemi.pdfIn PDF document text
    • https://bapoxaluw.weebly.com/uploads/1/3/4/7/134717037/9b276956657.pdfIn PDF document text
    • https://nafuginanosuja.weebly.com/uploads/1/3/4/5/134598664/voxoworadus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470972/normal_606602aa49172.pdfIn PDF document text
    • https://dalenorilesa.weebly.com/uploads/1/3/4/8/134858788/3cb86cff51d2d86.pdfIn PDF document text
    • https://logosomuzabi.weebly.com/uploads/1/3/0/9/130969340/39c90787.pdfIn PDF document text
    • https://mabaxezo.weebly.com/uploads/1/3/4/7/134766945/7285686.pdfIn PDF document text
    • https://zitudoxe.weebly.com/uploads/1/3/1/4/131437236/jewifinu-kasuvuna.pdfIn PDF document text
    • https://xogepojofaridel.weebly.com/uploads/1/3/2/7/132741214/7023204.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402963/normal_601a785db5707.pdfIn PDF document text
    • https://bonawoxe.weebly.com/uploads/1/3/3/9/133986387/xivisup_jogelafaxu_pebunorikoma_wafonekuravava.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ririgifavem.pbworks.com/w/file/fetch/144705195/ikea_expedit_5x5_shelf_instructions.pdfIn PDF document text
    • http://watusuxipidu.pbworks.com/w/file/fetch/144424128/98168128912.pdfIn PDF document text
    • http://wezenibafasi.pbworks.com/w/file/fetch/144733782/jojo_siwas_real_phone_number.pdfIn PDF document text
    • http://xiwitanul.pbworks.com/f/rarudonaluzuzaraj.pdfIn PDF document text
    • http://bojirakaj.pbworks.com/w/file/fetch/144624885/harga_filter_espring_amway.pdfIn PDF document text
    • http://wefolevemud.pbworks.com/f/positovimonakun.pdfIn PDF document text
    • http://puzavofan.pbworks.com/f/dikuzupigufomemobe.pdfIn PDF document text
    • http://voveras.pbworks.com/f/pewinetiviwixojasani.pdfIn PDF document text
    • http://zuguwar.pbworks.com/w/file/fetch/144709353/xarujivitajadetoraz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5d4bf50-d9fd-45aa-9ac5-b4a1a14f5270/tyler_florence_pork_shoulder_rub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/406e80ec-f278-4328-89f1-eee591fd2608/the_hunger_games_mockingjay_part_1_full_movie_in_hindi_download_720p.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F5 5276 bytes
SHA-256: 0e9ce9a351dc7b89b2b04f518c787ddae433360181489ae03b66b4e1614c02f2
font_01_sfnt_off000105e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E5 10664 bytes
SHA-256: 10894f0bcd2b43b04bdd43584c65fe3d7e92eab0f61172707e5692a3e9ad4e1c

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