Malicious PDF — malware analysis report

Static analysis result for SHA-256 abfea049cb814b4b…

MALICIOUS

PDF

132.4 KB Created: 2021-07-29 19:54:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 2268f5c7e00fc73ff92f3b454374dab9 SHA-1: 2ab47ea4cdbe4f92065c0b9cc0c10f0b7832bd08 SHA-256: abfea049cb814b4b3ba7c656c9f3d725dfe2301568c90d830295d438198fa7ad
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating it is likely a phishing or trojan distribution vehicle. It contains a link farm pointing to multiple compromised websites, which in turn host other PDF files, suggesting a multi-stage download or redirection process. The primary purpose appears to be directing users to malicious content hosted on compromised CMS uploads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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
  • 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://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/c3bada0a0e6e6ea6080086893ca56b13/genawatodowilukutema.pdf In PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b54f4e5bfd---naginamidudapunoxok.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/07fcf45f8e11429659e86345b283fc96/64944655885.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a46e40c095a---kiratekumodisiziralutower.pdfIn PDF document text
    • https://www.pactforfamilies.org/ckfinder/userfiles/files/sizum.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aadb9b81785---kavevasokil.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1606cea6de6ce8---vururijonawobarerazuvuxiz.pdfIn PDF document text
    • http://elijasprojekts.lv/files/file/zarujalasixulafupok.pdfIn PDF document text
    • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/8htlk8tccrnpgkru1njjn4i11d/vatavebuw.pdfIn PDF document text
    • http://aplus.to/userfiles/file/89015572448.pdfIn PDF document text
    • https://oglethorpeclub.org/~oglethor/UserFiles/file/xutirejokejava.pdfIn PDF document text
    • https://tidurmalam.com/contents//files/64411758800.pdfIn PDF document text
    • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/181da34c0e0703a26bda82aa800befd5/toguvosotanajatadapofos.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766604b63ec---bejogamepilopuziguso.pdfIn PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083cd583482f---nizejifegobibarixusokubi.pdfIn PDF document text
    • http://thermcom.cz/userfiles/file/jerugesawafinuluwaf.pdfIn PDF document text
    • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/742901761f6936f35d2d805976fb8b50/6991960085.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e836e92c4a3---zurik.pdfIn PDF document text
    • https://rkdestate.com/userfiles/file/gumuwiza.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/29e2802066b017a71196d5b24343a83b/rinevewoxupeluzabipaxepab.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/72a251d438c68ae9cad37e2597edce1a/wifujobokuwoxu.pdfIn PDF document text
    • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/bj3a9fargmlajonphaf77tpcgn/75831691465.pdfIn PDF document text
    • http://reelproductionshd.com/userfiles/file/vodunanopupimiso.pdfIn PDF document text
    • http://hosungtour.net/FileData/ckfinder/files/20210622_46BC2F36A0558D60.pdfIn PDF document text
    • http://mamnonlittlesun.com/upload/files/70071112873.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=animalia+book+answersPDF 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

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_off0001a63a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A63A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001be51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE51 10468 bytes
SHA-256: 3a21c8a148d2a0c4f07b56b8c62a09458fe8fe78c3c843857c4678fb587ae840
font_02_sfnt_off0001d622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D622 17592 bytes
SHA-256: 5b688e834bca3b3040fd9decf30981da1606d23b973cf4244d081cf41db8e1dd

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