Malicious PDF — malware analysis report

Static analysis result for SHA-256 380f6dc4bd49e7b1…

MALICIOUS

PDF

93.7 KB Created: 2021-06-27 21:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: 1cc862afff01728e5188c5a911972a77 SHA-1: ced9cb6dd694dcd0600a32cd8ef9c08a3a8ebf33 SHA-256: 380f6dc4bd49e7b1dc3d7440ad38afc891181ded00e047933cdeabee0ba34fff
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs pointing to compromised websites and disposable hosting, indicative of 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 primary attack vector appears to be the exploitation of user trust through deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9929

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://synerhu.ru/uplcv?utm_term=ty+bsc+organic+chemistry+notes PDF link annotation
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/kln7rf5hnllk7imj2homun7i5h/57928260403.pdfIn PDF document text
    • https://cihangirhotel.com/upload/ckfinder/files/4839792662.pdfIn PDF document text
    • http://spreewaldatelier.de/img/editor/file/zakovexepuwolelix.pdfIn PDF document text
    • http://coreaad.com/DreamDataUpload/file/xunutojo.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608dffc175736---61913207223.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160792d3c6ed7b---kopogekupofaw.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/0db68c40efc35563c91c5a474f911389/mogetujidopexire.pdfIn PDF document text
    • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/39ac291f7a69d354a2d524fc6d699fde/gemesu.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/b701be2caa6c4f230036d64546bff724/91244714619.pdfIn PDF document text
    • http://kleiberit.ru/files/file/kotixunif.pdfIn PDF document text
    • http://poltinik.ru/userfiles/file/dujawizuxaserakav.pdfIn PDF document text
    • http://zentrumok.com/userfile/files/97244274191.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4362be121---75377370748.pdfIn PDF document text
    • https://mingyi-lock.com/data/file/userfiles/files/2938412363.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/n0h6b1gbso1q5au8qc0b9k4uj4/17517292070.pdfIn PDF document text
    • http://uamarkets.com/images/file/68897374885.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/votitixetufowebujaget.pdfIn PDF document text
    • http://talleresjpg.es/img/file/vebonuvonedapidifud.pdfIn PDF document text
    • https://aimhc.com/userfiles/file/39271883201.pdfIn PDF document text
    • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608481b2417e4---negamojimejomi.pdfIn PDF document text
    • http://pphu-joanna.pl/fckpliki/file/tumubiwixikuwa.pdfIn PDF document text
    • http://riggi.ru/userfiles/file/penapikiworitiduve.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a0587480d63---54412165551.pdfIn PDF document text
    • https://ssmavidiyar.com/public/content-images/files/33641339537.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/28a1232fbf6ac090a962c425b2d05c8c/guzofevezono.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_off00010a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A29 17696 bytes
SHA-256: a435fc5d03f64260368c5078c5b3fcbca42d45e6f2b3e6f6059c52036511eda5
font_01_sfnt_off0001387c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1387C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15093 10848 bytes
SHA-256: 716170ed33ef2e9ee57fe8952df26f8573d0965b765e42f90ba0bf2918786475

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