Malicious PDF — malware analysis report

Static analysis result for SHA-256 076ff20a18ba5a10…

MALICIOUS

PDF

85.0 KB Created: 2021-07-08 04:35:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: a654ce6b2ea173aef9abc8760342e089 SHA-1: 081ef1117f7917508758e4a155d4947eeb4e78d0 SHA-256: 076ff20a18ba5a10391e132aecae8d0b526d701c4d10d1058ca991262ae5b498
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links pointing to external websites, many hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to potentially malicious content. No scripts were extracted, but the structure and URL patterns are consistent with phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077cf739d75d---50681898464.pdf In PDF document text
    • http://eko-inwest.eu/upload/file/mipiwetevuvubiwozewajutud.pdfIn PDF document text
    • http://adaviestransportltd.com/userfiles/file/jilotijegomapunob.pdfIn PDF document text
    • http://hgbs.de/userfiles/file/zagumibamafanizekigujuna.pdfIn PDF document text
    • http://harasim.cz/uploaded/files/danataforalonaxotonomeb.pdfIn PDF document text
    • https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/9c9a9f4409fb7157cb57c85bd3b90a5e/36683150632.pdfIn PDF document text
    • http://hutbephottaihaiphong24h.com/upload/files/42855780535.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/lnm60ua7j0ij72e3snj0qplnb1/kenalamukasitelizad.pdfIn PDF document text
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e048c7713---34123131735.pdfIn PDF document text
    • https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/6v1quve8p2gihqa15tslt2f08p/96401667412.pdfIn PDF document text
    • https://agrilaui.com/userfiles/file/lavuzumatibijexexit.pdfIn PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5753daf115b26ffdcb4f30cf2afe9e3c/80643068616.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/8vohdibptdip6082uios76tp73/nuwodajagafusagitikite.pdfIn PDF document text
    • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/xebopowixeximudejenen.pdfIn PDF document text
    • http://planetamama.ru/files/file/xemerezadefow.pdfIn PDF document text
    • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bc2815c13---48094218493.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/47405612861.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/692534fac60d9915e934ddc30b1e1091/25740876431.pdfIn PDF document text
    • http://laros.cz/UserFiles/file/mebosumajedun.pdfIn PDF document text
    • https://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/akog3vhotq3dv6hsmi4co78re2/ligaji.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609fde9fbc17f---tegewirapetuwu.pdfIn PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ccc8712cb5---bisimiguxoxudasixejo.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6105350c5---rosamoreliriso.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=ist+to+cstPDF 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_off0000ebee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBEE 17216 bytes
SHA-256: 6f5b57018fe322b78a1acf9f0c6395a24276ed77443dbf7b2e994416397e45c8
font_01_sfnt_off00011914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11914 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001312a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1312A 9536 bytes
SHA-256: 3cefff7f5369675465de99d3c2659bd7dd3203e239563ca3d4f98b6c977a8ea4

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