Malicious PDF — malware analysis report

Static analysis result for SHA-256 1913d3f7cb7145bc…

MALICIOUS

PDF

280.5 KB Created: 2022-03-25 10:27:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: d988661455ceca774f717fa5411b1240 SHA-1: 2e95aa8d98072554d37d975197be9ee768f59efb SHA-256: 1913d3f7cb7145bc134dfd95fc40394c731a19aee98f8e1723923021c60e4add
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6835

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=lockwood+and+co+the+empty+grave+free+download PDF link annotation
    • http://ithalattagarantibelgesi.com/resimlerfiles/71712157633.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/wawafefigasufavusage.pdfIn PDF document text
    • http://websurin.net/UserFiles/File/jevedevirivelugeg.pdfIn PDF document text
    • http://abaj.cz/UserFiles/File/86166794547.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162307a198fe04---86623114875.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620e1c86a68ce---70888766458.pdfIn PDF document text
    • http://essential-people.com/USAID/file/gurufelofodolivire.pdfIn PDF document text
    • https://konchris.com/userfiles/file/1647204639.pdfIn PDF document text
    • http://www.pvvc.cz/files/85253477558.pdfIn PDF document text
    • https://collinite.pl/userfiles/file/mafijetexoji.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/tasoxofavipimumu.pdfIn PDF document text
    • https://rebeccaosborne.com/uploads/maduwamipakogoliwe.pdfIn PDF document text
    • http://chongros.com/userData/board/file/82770595201.pdfIn PDF document text
    • http://jsdarvin.com/files/bubalakusanig.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1623ced73e683c---87177796172.pdfIn PDF document text
    • http://playos.net/data/playos.net/uploadfiles/file/14806542005.pdfIn PDF document text
    • http://preiss.at/upload_files/files/38742822754.pdfIn PDF document text
    • https://hamayeshniroo.com/shop/file/9103812263.pdfIn PDF document text
    • http://heonlab.hu/uploads/files/66374054434.pdfIn PDF document text
    • http://letnipohar.cz/upload/file/55304238685.pdfIn PDF document text
    • https://gedayapi.com/userfiles/file/tidibekujobof.pdfIn PDF document text
    • https://beldapromosyon.com/calisma2/files/uploads/27342166623.pdfIn PDF document text
    • http://www.ciesol.com/ckfinder/userfiles/files/pipobefodav.pdfIn PDF document text
    • https://chennothinterios.com/uploads/file/63937257002.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/6c476b1f48c5e8e296bf49ea2da7c699/34196915503.pdfIn PDF document text
    • http://thuonghieutoancau.vn/uploads/files/8009269634.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161f9f3b88cab9---solabunuwub.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_off0003f1c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F1C5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000408e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x408E5 11120 bytes
SHA-256: a4c1418c4b33fd0b3f57fc6e62fbabd0b507f20d36f1400b020f3bd1e6b6242d
font_02_sfnt_off00042285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42285 18444 bytes
SHA-256: efdc4b23362e7e5c4f6a84ecae25cceeaa3c6e91d4b1d0c5d88b3ad983ebc278