Malicious PDF — malware analysis report

Static analysis result for SHA-256 d814a0ef0a35e1ee…

MALICIOUS

PDF

84.0 KB Created: 2021-07-02 02:15:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: c071adf05eb9a18acdd3ca7799c7bf7c SHA-1: 40d96c34b829512731970890cf227246e24ea8f1 SHA-256: d814a0ef0a35e1ee1fc5942e32aedb6bc0c592aa77c2acfcea9f36bee2bc6670
156 Risk Score

Malware Insights

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

This PDF document was identified as malicious by ML classifiers and ClamAV. It functions as a link farm, containing numerous URLs pointing to compromised websites, likely intended to lure users into phishing scams or malware downloads. The presence of external URIs and compromised CMS upload links indicates a distribution mechanism for further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://garglob.ru/uplcv?utm_term=where+do+you+find+redstone PDF link annotation
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2288eed94---bawefirosowalumisu.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/6c01ac0d8d7ecacd58473c013e156dd4/26843811407.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607708bf37f7b---wojukosekebaza.pdfIn PDF document text
    • http://omonetach.pl/foto/ilustracje/file/40990800571.pdfIn PDF document text
    • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/4f39b62ce5258f28091ea8c33921506a/10073987623.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160d8e04815277---ruwozalufumeboluge.pdfIn PDF document text
    • https://mk-promotions.com/ckfinder/userfiles/files/48872457456.pdfIn PDF document text
    • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/538624551.pdfIn PDF document text
    • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/ffb2c2ba8f48fab11bd5c25b8339d8e1/getogu.pdfIn PDF document text
    • http://tikatalog.sk/_files/file/firebalu.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c89dd36176---82267604895.pdfIn PDF document text
    • http://theofficefurniturestore.com/ckfinder/userfiles/files/3430491314.pdfIn PDF document text
    • http://newgrids.com/userfiles/file/demumizabujixivep.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/3043993c3b8d01b13b4fb066cf08f3a4/remetuwabatizilenekov.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/f3026de279631db0e642d4ff77b82a95/gimesetifumagezasipegixom.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a35641db463---xozadevufog.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba980da048d---59653617932.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160708f4127ead---tibuxigoviminaluxabunu.pdfIn PDF document text
    • https://renebeumer.nl/userfiles/file/59780418269.pdfIn PDF document text
    • https://tsegypt.com/file/42439473818.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/90128059903.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/skv88l9rej0ti204egf9lgmlgv/tukilifeb.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/ajm73r2qt5vair4dcd359p3hpp/lezexavikedobo.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FE 17160 bytes
SHA-256: ec1b280af2290e3eff95320c416809566b271ebdc07b44a477d05aabdb99cc6e
font_01_sfnt_off0001130c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1130C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B23 10448 bytes
SHA-256: 48307a61c5c51cfbf6b42c651cd239da20db0c8a86ed6910c10310ed2e9758a0

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