Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5de1457a483bd71…

MALICIOUS

PDF

90.5 KB Created: 2021-03-16 03:08:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6312ec76b2bdd3baa850f88463b37abf SHA-1: 5c03f4a8c66baead0818c5a2b6b60fa99cc4ed78 SHA-256: e5de1457a483bd714a433fe373592cfba4053222cdaa991ac6e2c6e3b66ea4d7
186 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards the use of embedded JavaScript for redirection or exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • 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://zajinet.ru/wix?keyword=doogee+x5+service+manual PDF link annotation
    • http://hot-money.fun/vodadalhf9cv.pdfIn PDF document text
    • http://216tilford.com/what_does_memento_mori_meaning_mac_miller990lv.pdfIn PDF document text
    • https://poxefapujo.weebly.com/uploads/1/3/5/3/135312596/kopetedububisi.pdfIn PDF document text
    • https://gakigabop.weebly.com/uploads/1/3/1/4/131406234/dijozamanugawa_wafimufupop_pifezivojanof_ranuli.pdfIn PDF document text
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/ecfcc3a97.pdfIn PDF document text
    • https://vubupegizisave.weebly.com/uploads/1/3/5/3/135315261/jubufomumeli.pdfIn PDF document text
    • http://bestita.space/emptiness_female_version_song_download_free04n2u.pdfIn PDF document text
    • https://durafozo.weebly.com/uploads/1/3/0/7/130740533/9414821.pdfIn PDF document text
    • http://zhigina.ru/23947915883od6u6.pdfIn PDF document text
    • https://vawilateg.weebly.com/uploads/1/3/4/6/134697686/kalasikimojepif_devirebojumijox_jojuna.pdfIn PDF document text
    • http://idealicaitalia.website/807247779796myhd.pdfIn PDF document text
    • http://gerda-msk.ru/molemifaxexonox4yhoy.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/bitupikizubejupubuzudalu.pdfIn PDF document text
    • http://gravkamen.ru/mufasojojuwan8cjjr.pdfIn PDF document text
    • https://lepekogiba.weebly.com/uploads/1/3/1/6/131637498/tovavimakadoriropo.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/army_love_couple_images.pdfIn PDF document text
    • https://lerinaxupol.weebly.com/uploads/1/3/4/6/134662503/6855386.pdfIn PDF document text
    • http://amsidisi.xyz/ford_555_backhoe_parts_manualcpyxs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://298c7861-702e-4dad-8e6b-798164301c36.filesusr.com/ugd/98adb1_12a6366545004414b96ef06302d214f3.pdf?index=trueIn PDF document text
    • https://204833c8-abda-4421-8777-5048ee7dd919.filesusr.com/ugd/e30b7a_20d7813fff514a0aa6134ee5cf3d567b.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://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_off0000ea1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA1D 8052 bytes
SHA-256: e0536a315f31e048e307634106af3fda8fcd90a8c6a134cc187bcb0236a8c632
font_01_sfnt_off0001058b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1058B 5372 bytes
SHA-256: 326942823de63828bf4965415f90bd4b5142069ac828b0c989033dd30435a9eb
font_02_sfnt_off000117cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117CD 15004 bytes
SHA-256: fa56e1e51d98619fa869748fc242a703fdcdc3d22f75f54d72ec85b2089d62e0
font_03_sfnt_off00014487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14487 16684 bytes
SHA-256: fe1ca6a691315ef32827512bb86cd3188d7c30cfa02bd4559714794831c9b14a