Malicious PDF — malware analysis report

Static analysis result for SHA-256 afa265ff4903d93a…

MALICIOUS

PDF

84.5 KB Created: 2021-06-29 19:36:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 7bd36ebe179022c7e3de59ea1c45f1e9 SHA-1: 86574047196de513342678c98cb13b8fcbc16f34 SHA-256: afa265ff4903d93ad33a4e5b4c4a3a6194c30ef3a4dc937e45f3ac3f6689a37d
96 Risk Score

Malware Insights

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

The PDF document contains a large number of links pointing to various websites, many of which appear to be compromised or hosted on disposable domains. The ML classifier strongly flagged this PDF as malicious, and the heuristic rules indicate it functions as a link farm, likely intended to lure users to malicious content or phishing sites. No scripts were extracted, and the document body was unreadable, but the link farm structure is a common tactic for distributing malware or conducting phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 5

  • 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://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085b94a00c71---zenejiwezomigejijul.pdf In PDF document text
    • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f62bc89897---44632510001.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606feeba29c52---zefodixorulisi.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/85fb7d97da131079fefae1848a1f0e6f/vinupogudabitisumud.pdfIn PDF document text
    • https://akita-inu.lv/www/files/files/43709676186.pdfIn PDF document text
    • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ee52f30ea---masakasonibemimeruka.pdfIn PDF document text
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072df626c347---zosatarisosaf.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d911c05ee0---runexavusitifofasebit.pdfIn PDF document text
    • http://geredekombiservisi.com/userfiles/file/zowovujijijujikapukunesi.pdfIn PDF document text
    • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/b807af0e8d5254d9e40233f2bce83a1d/24353880817.pdfIn PDF document text
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a767cae4a---zikuzotorasoz.pdfIn PDF document text
    • http://metallpress.info/files/47625477135.pdfIn PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160819fdec6907---sularodarujik.pdfIn PDF document text
    • http://riskhedgetech.com/uploaded/file/133388352060b985f2c22a6.pdfIn PDF document text
    • https://www.reflectionuk.com/wp-content/plugins/super-forms/uploads/php/files/ni7nib5lo1ml0dvbp15eol11hb/jowase.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/85aa18d744bc848612e95ff9701a6f60/1768988936.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6096a4819---vutikejogudijajuripigozol.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/dbe6c843b6fe36ffee5f104a489f6b94/18566587251.pdfIn PDF document text
    • http://infinity-pro.ru/userfiles/file/76238179330.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/v4h3etajlcedou3lr3vdo1n89a/75492200095.pdfIn PDF document text
    • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/1d7871f5ac2585e260895f5d142942a4/digugexopagire.pdfIn PDF document text
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/b987849a241fccc1bf86009e448f5c3a/nigofosomupe.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c713f292f01---82990691011.pdfIn PDF document text
    • http://cesmclassof68cheyennewy.com/clients/82478/File/7062469757.pdfIn PDF document text
    • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/qa2akl2a6h9aj1bk17651l9u64/nitubozawamibutup.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=death+of+a+salesman+quotes+and+analysisPDF 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_off0000e9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E6 16480 bytes
SHA-256: c9359e8e17e5104d6ce1b22f650b40dce04310f02cbb4d81dc96bf43beb6a8de
font_01_sfnt_off00011499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11499 10880 bytes
SHA-256: e43c6fa31f9c5673060297fd4805e9b30a6532c0dd234f36ecb4fd589f1ed9a9
font_02_sfnt_off00012d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D62 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1