Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e02e2814b46def3…

MALICIOUS

PDF

87.8 KB Created: 2021-06-25 23:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e4f752530aac537114f9b4997b696c5e SHA-1: e282b7d6a39b9147f741180fb41c3588be3dc932 SHA-256: 1e02e2814b46def378f51d40a3c57d35a65b22b0a0115513735956fe06cc22b8
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting it's designed to redirect users to malicious content or downloads. The presence of a 'download button' lure further supports a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 http://galluccifaibano.com/userfiles/file/pebikileduxaxake.pdf
    • http://beerskiboot.com/img/upload/file/kogajibefizenupos.pdf
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/8753820f2a814ddc56c78a40a4d1ed81/38250598351.pdf
    • http://jinohair.com/upload/files/98336346199.pdf
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16077a6db9aaf2---giniwejebada.pdf
    • https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/04d6b3a41cdf4e860a3dbdfe2e2c896e/gegajofupopudafexaxikiv.pdf
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/03122b144f2f90e825936a2a931c60fb/66596150694.pdf
    • http://gocreate.termall.pl/upload/fck/file/22704683028.pdf
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/3fde239e965075add5cd0b778ad69570/xedezogetada.pdf
    • http://wilkinsconnection.com/clients/9/94/94ba1e7d864c5c8af3bb481f5f9f31de/File/xirezilolivafobamurazenis.pdf
    • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/fda8689c57792bb97cd65e8730bd8b78/xezujanirirolenopin.pdf
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3ce493e75d---fepinun.pdf
    • http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160b5b7b10d84d---31611866230.pdf
    • http://sun-green.be/ckfinder/userfiles/files/pemiwad.pdf
    • https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/t6vrigt7hrn4c0cbq362d3bmfq/49935867292.pdf
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f97717c17---disejetagamejofigojawizo.pdf
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a11e4c3cf88---kelefekewigolizapov.pdf
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ad9b61df7d5---bazuwipodader.pdf
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/acd694720cfa12527004c9d4ed1b27c4/fonavegemulunukajukipolo.pdf
    • http://af.ssla.ru/images/fornews/files/poveboruvezeweko.pdf
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1607685e9d340c---35040401997.pdf
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/5b8095700b5a3cfe38052dcba6e34444/pafuzotupemuga.pdf
    • http://www.anclupnapoli.it/userfiles/file/wikujizidonuroz.pdf
    • http://triatlonbizuterie.cz/sites/default/files/file/13657313875.pdf
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a67fccb8ead---diniberosunibisizew.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=psycho+pass+movie+download
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4fd.bin
702709c2b80e3a1a8eb9b8433ee86a0a3e858e2b6b10dfa0cb0efa851aee9789
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FD 17060 bytes
font_01_sfnt_off00012136.bin
92e2643736600053cc543456d6af0ff5d29c16838dbf6a0f3324542b52792172
pdf-font-stream PDF embedded font (sfnt) at offset 0x12136 10848 bytes
font_02_sfnt_off00013a24.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x13A24 16792 bytes