Malicious PDF — malware analysis report

Static analysis result for SHA-256 114ee9d062b8d21d…

MALICIOUS

PDF

84.1 KB Created: 2021-07-13 19:37:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: de5802f8d54f837112e2465e98c23f9b SHA-1: 49a901c63581d9d439727631de8bf599d65adcec SHA-256: 114ee9d062b8d21df51314e2cb26277671c0b03bdbb8a1716f4f900d00557c56
156 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. It contains numerous links pointing to compromised WordPress sites and disposable hosting, characteristic of a link farm used for SEO manipulation or phishing. While no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/0sslmn4d7m7spl036pv2pv7cct/jinibegimivanuxifid.pdf
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/7j4rnbigpdsvohjp15jur230i3/46241528492.pdf
    • http://decamiones.com/userfiles/file/zutunobojuti.pdf
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/9ilojuajt1rjvg7h3fcpk8af7r/witupeni.pdf
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c130cc2540a---75604851662.pdf
    • http://alexanderkanevskyartistbiography.com/clientMedia/file/57759183665.pdf
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609222c57c702---97032131611.pdf
    • http://chalappuram.com/userfiles/file/1892764534.pdf
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a99fb30981d---xonafopenozevipoxaxiwixif.pdf
    • http://phuocthuan.vn/images/pic/file/6160384255.pdf
    • https://lionkingbali.com/uploads/file/52593779013.pdf
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/bb9qg0r1mhs99on5lm3d4j3o58/wiwutoseporapaxefuvixik.pdf
    • https://ivaco.it/file/nowojun.pdf
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4c590ada71---3509883401.pdf
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b98c85e413---gunopeboba.pdf
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/nnint84f3ppb0a4m4bkojuvm51/wuzawolavumemaladilolomem.pdf
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/51f87a2cc43291efbf9450134e382e47/49540185639.pdf
    • http://tuzvedo.hu/elemek/file/kipewabamuba.pdf
    • http://asustainable.com/global/file/58567986847.pdf
    • http://morethancars.nl/uploads/edytor/file/sawuka.pdf
    • http://ajivikafinance.com/userfiles/file/fijisepufemakobanekotaliz.pdf
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/gvhbkuphimu5t8lbdndcivr5b2/14002160821.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=short+hairstyles+for+girls+2020
    • 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_off0000e6d3.bin
253a1191dd20c01cb42ba3084e863d08e8e8e08d83b2eebafa25b6ca6617ef23
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D3 16660 bytes
font_01_sfnt_off0001120f.bin
e3e8a552c5f2cb96bb7ab2df93a5da1be805a6aa8afe751f07dd9b476c2f46ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x1120F 10820 bytes
font_02_sfnt_off00012b3e.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x12B3E 16792 bytes