Malicious PDF — malware analysis report

Static analysis result for SHA-256 f29de940e5329b75…

MALICIOUS

PDF

87.8 KB Created: 2021-04-18 21:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 39c894e60a7102efa14e4588dc3a12db SHA-1: 73a351ba1c28771def9341973e8b8f6b804737d3 SHA-256: f29de940e5329b757ce40faf80cd9936da0e4182f0c6918184a96e2d1126e042
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document, likely delivered as a spearphishing attachment, designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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.
  • 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://mezovuduw.ru/strik?utm_term=dante%2527s+inferno+2010+game PDF link annotation
    • https://gawinageriju.weebly.com/uploads/1/3/0/8/130874076/c9cacc87638ac.pdfIn PDF document text
    • https://ruvezidarumova.weebly.com/uploads/1/3/1/3/131380493/8477821.pdfIn PDF document text
    • https://mapuxotegudu.weebly.com/uploads/1/3/4/3/134356271/3296223.pdfIn PDF document text
    • https://cdn.sqhk.co/towinomer/giQfinW/defy_gravity_prices_raleigh.pdfIn PDF document text
    • http://sandwichhq.club/how_to_open_kenmore_600_washerahtmw.pdfIn PDF document text
    • http://pawusewi.sportsontheweb.net/feedback_amplifiers_notes.pdfIn PDF document text
    • https://cdn.sqhk.co/wenewojufaj/ildiec6/64681769260.pdfIn PDF document text
    • https://vajugape.weebly.com/uploads/1/3/4/7/134767319/fidovevubofu_jodadu.pdfIn PDF document text
    • http://prizinsta24.space/infinity_gauntlet_knitting_patterntrov9.pdfIn PDF document text
    • https://kosipomorogimel.weebly.com/uploads/1/3/4/3/134307263/efc57072d19fde9.pdfIn PDF document text
    • http://islandlandscapesbb.com/64271649149u0hiv.pdfIn PDF document text
    • https://tosafesixagosug.weebly.com/uploads/1/3/1/3/131383933/bewukasolil.pdfIn PDF document text
    • http://jologedeb.getenjoyment.net/52010278301.pdfIn PDF document text
    • http://mikrotikwizard.com/44032510812y383i.pdfIn PDF document text
    • https://dogaralezuj.weebly.com/uploads/1/3/1/6/131637140/2240614.pdfIn PDF document text
    • http://xonigej.mypressonline.com/food_microbiology_laboratory.pdfIn PDF document text
    • https://bolumuratojepo.weebly.com/uploads/1/3/4/7/134749128/79c33b5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://9764c975-acb6-4bd5-a3ff-b1f4624bc9bc.filesusr.com/ugd/5bcb7b_47cfe3b5434b4efd9c4637618b1061ec.pdf?index=trueIn PDF document text
    • http://lexekuduwowig.atwebpages.com/postpartum_depression_questionnaire.pdfIn PDF document text
    • https://c3d762b3-5d50-4891-ab6d-43710edd2423.filesusr.com/ugd/3254bf_cff3cde1527345f488fd62f448fc0934.pdf?index=trueIn 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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF137 5064 bytes
SHA-256: 3f6de1aec48a87403f10b03a083c4c45b4df4279029407cccc41234dc55218ca
font_01_sfnt_off0001031d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1031D 5416 bytes
SHA-256: b887aa179ae558a1e2a8df6ab107786951ee0a6b8736113ec83530deb2072989
font_02_sfnt_off0001157e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1157E 7084 bytes
SHA-256: c2fd14632d49e51f7e61466e6c48c5a0b2e221efcf790d4d283389dad30ad801
font_03_sfnt_off0001284e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1284E 12660 bytes
SHA-256: a706bf8c8df47a38562aaf907d6061d73baa5244ee1594dcf98c4d2b2dcc8b19