Malicious PDF — malware analysis report

Static analysis result for SHA-256 8756678c268a18c6…

MALICIOUS

PDF

74.8 KB Created: 2022-03-30 05:33:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: e37902016a37368202687e6ab9974d70 SHA-1: 5f07253c4574cb6e62fa6bf2154d26d9235ad29f SHA-256: 8756678c268a18c6f8cfe29aac4bb147cb50337903ac3d7d0554c3ef4073b953
251 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • 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.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://mifuj.co.za/YmrXLWy8?keyword=medialink%20router%20factory%20reset PDF link annotation
    • http://short-story.ru/upload/file/dobabuwax.pdfIn PDF document text
    • https://bozaveruri.weebly.com/uploads/1/3/1/4/131483492/2459138.pdfIn PDF document text
    • https://netibujiki.weebly.com/uploads/1/4/1/2/141218022/882773.pdfIn PDF document text
    • https://tidijesugeji.weebly.com/uploads/1/3/4/7/134764535/xovon-lexadajuxuz-rofuluji.pdfIn PDF document text
    • https://vumizopefi.weebly.com/uploads/1/3/5/3/135313358/baxag.pdfIn PDF document text
    • http://tradotel-riviera.com/file/84794384179.pdfIn PDF document text
    • https://markyatirim.com/resimler/files/97812889555.pdfIn PDF document text
    • https://erdenet.mn/userfiles/file/37637087559.pdfIn PDF document text
    • https://gafekiwukuwemul.weebly.com/uploads/1/3/4/3/134313713/zexidoxevakojiw-mofupedav-jajupopevekif-datarobifunotik.pdfIn PDF document text
    • https://povemiloten.weebly.com/uploads/1/3/4/6/134608376/9a65b987a5dbe46.pdfIn PDF document text
    • https://filuwanukolo.weebly.com/uploads/1/3/4/8/134874182/luzelumivefavarudodo.pdfIn PDF document text
    • https://xusisuzonetov.weebly.com/uploads/1/3/1/4/131456320/e435390f0a39.pdfIn PDF document text
    • https://fuwamelewupo.weebly.com/uploads/1/3/4/1/134131589/fab68118f68.pdfIn PDF document text
    • https://fomukudir.weebly.com/uploads/1/3/4/4/134403856/76bb9b88f8c.pdfIn PDF document text
    • https://austarpharma.austarchina.com/upload/files/lumupovobagasil.pdfIn PDF document text
    • https://devoligoj.weebly.com/uploads/1/3/7/5/137509872/5603118.pdfIn PDF document text
    • https://jeduwisuduxib.weebly.com/uploads/1/3/1/4/131483356/801617.pdfIn PDF document text
    • https://wexokoxenasebun.weebly.com/uploads/1/3/1/4/131406289/timaferoxewupo.pdfIn PDF document text
    • http://job.nspu.ru/ckeditor/kcfinder/upload/files/debevopulovogixaromur.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000c2a7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c2a7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2A7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000d94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94B 10768 bytes
SHA-256: 5e381563e6ba032adaefefc28950bd594cf2df0d8206b43ba0e009e9f29769cb
font_02_sfnt_off0000f23c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23C 16556 bytes
SHA-256: b36df657e35bf5ce72d6fa37618c069bbd45be876e7cad712cb56ceac643ce51