Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d50a2e21cc40e66…

MALICIOUS

PDF

75.2 KB Created: 2021-08-11 00:34:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: 80adeb9d165a0fa45261ab156eda4f99 SHA-1: 29b823b102717d216964be9aa549ac82b3520be7 SHA-256: 0d50a2e21cc40e66981c9c4437f0cad8d7da2df4e7edf467678aa7e5042fcf0f
156 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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://futuresbuilder.net/dayafter/uploadimages/newsimages/file/5809219815.pdf In PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/08d51d5610f391306eed9cb9810546f1/naxomonixirajipenuvexe.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/e27df2e49070b7482bc05839b7738f0e/pofimikuzivusupalisopi.pdfIn PDF document text
    • http://ipllaser.in/uploads/14212527677.pdfIn PDF document text
    • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/24dbccacaf39e4c1e3aded6681b83f5c/75107536449.pdfIn PDF document text
    • http://dragoniresorts.com/userfiles/24692537714.pdfIn PDF document text
    • http://frangarcia.eu/upload/file/93682038202.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/fa41440fa28063be2b7525aa1dca32fe/39683699584.pdfIn PDF document text
    • https://woodfur.in/userfiles/file/fogawufatokukawenex.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ea82ae704---zivezaxemavewed.pdfIn PDF document text
    • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160895b33da7bb---44892484273.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/5f0f153982lgg7fbsn7gffm2ld/relunesugerexomudumaniduv.pdfIn PDF document text
    • http://nuestratierrapremios.com/campannas/file/fojepedexopazev.pdfIn PDF document text
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607072854bf6d---zisit.pdfIn PDF document text
    • https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/c7ea900c92495c1f34c7f08da73aef88/91107101215.pdfIn PDF document text
    • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/5f9ada58616d6b3c21fd556a16f5bb30/kigexan.pdfIn PDF document text
    • http://famillespourstarlight.com/clients/a/a9/a9b42c05011d3bb27e7f7ec2ed30324f/File/12705813278.pdfIn PDF document text
    • http://www.pics4us.de/userfiles/file/5015943888.pdfIn PDF document text
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607662999a6b9---tomaliwetepos.pdfIn PDF document text
    • https://radiosmile.hu/upload/file/88550775204.pdfIn PDF document text
    • http://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/ralidokevexegozifowo.pdfIn PDF document text
    • https://charqueadaboavista.com.br/wp-content/plugins/super-forms/uploads/php/files/88b067ba45f312c5c0ea6881d4e6cae5/17951616455.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=metodologia+de+la+investigacion+educativa+libro+pdfPDF link annotation
    • 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBED8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d6ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EF 11096 bytes
SHA-256: 75e7d95fc7807b73d33dc298fe0c4a31af13519cb84fd2d1817c69ab1e9ce698
font_02_sfnt_off0000f08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08A 17352 bytes
SHA-256: a55f36ca545b1998c402cf7ae08458dba10afbaaecbda212ace7fab4b3717cf3

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