Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ad6970b8556279…

MALICIOUS

PDF

84.3 KB Created: 2021-09-12 19:28:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 58a34d3bf02edf427f6b5261c9319f5d SHA-1: 6f942944727eaea3e7c05a733784979200b4d575 SHA-256: d5ad6970b85562790c2acf6e3e0c919330301bfb3dc99eaf76a669b1923f1066
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of a 'download button' lure further supports the intent to trick users into downloading malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://pixomot.ru/uplcv?utm_term=300mb+movie+free+download PDF link annotation
    • https://egyiksem.hu/uploads/file/zagevagusikeru.pdfIn PDF document text
    • https://portugaliaimagyarok.com/ckfinder/userfiles/files/luzafefulezepibut.pdfIn PDF document text
    • http://bonsite.nl/phpcmsys/file/jitirukexede.pdfIn PDF document text
    • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/02d73bg0of1aqiedjn1na551qc/nuzotovasew.pdfIn PDF document text
    • https://rosettes.it/userfiles/file/10189360405.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135fb521ec25---12602602172.pdfIn PDF document text
    • http://curvesncontours.com/userfiles/file/40235549018.pdfIn PDF document text
    • http://prefinancovaniehypoteky.sk/res/file/vatuzizilenuz.pdfIn PDF document text
    • http://commandhousecreations.com/uploads/files/fovunuxirire.pdfIn PDF document text
    • http://bjjiffy.com/upload/fevovewigix.pdfIn PDF document text
    • https://proetcontra.hu/userfiles/file/fidofiteputunobonun.pdfIn PDF document text
    • http://xsjsbzrw.com/uploads/files/dujewegusiduwufivumejo.pdfIn PDF document text
    • http://gniortho.com/files/Upload/file/riputolonosubabi.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130293843bf0---tujorakafoga.pdfIn PDF document text
    • http://onlinecommerce.bg/uploads/pages/files/wesirirokusakologaf.pdfIn PDF document text
    • http://18554080.com/userfiles/file/45524822483.pdfIn PDF document text
    • https://www.gurkhasfinance.com.np/ckfinder/userfiles/files/84235417165.pdfIn PDF document text
    • http://polaryachtmanufactory.com/res/wysiwyg/file/63304175476.pdfIn PDF document text
    • http://kameleonhastanc.hu/files/file/26394693898.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613d18a4619a0---38787436313.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1613a17d943245---webibipobinetem.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613afd328bcd6---kedapexogejikusedeb.pdfIn PDF document text
    • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/fa98fb676b9c9922f2fed72a89d55044/jafebebur.pdfIn PDF document text
    • https://bauarch.bg/files/62269700423.pdfIn PDF document text
    • https://rdsdealers.com/ckfinder/userfiles/files/pudikananalobinafepa.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE636 10736 bytes
SHA-256: 2cb79e5c94a103f067d0438e913e8c705c361a8beb7121c98cfdbf8e5911c80f
font_01_sfnt_off0000fecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFECD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000116df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116DF 17256 bytes
SHA-256: 5c02dc391f6cee33a5955a59ea6bfc8638546e0a94c3bb0de0013fd07137e277

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