Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fc41c49d1c07587…

MALICIOUS

PDF

79.9 KB Created: 2021-03-16 03:48:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 9034a95dc83df3fef4a26d86e8fb542c SHA-1: c8bf8220c130a39f3dc8230be001daff0572e606 SHA-256: 5fc41c49d1c075872502a1ea106bd8107ed441ecd2b7025fe106b0498ff1e36e
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by both ML classification and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to distribute malware or phish users. The embedded URLs and the PDF structure strongly suggest an attempt to redirect users to malicious sites, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lozipotod.ru/wix?keyword=soac+ucls+water+polo PDF link annotation
    • https://tedagenuv.weebly.com/uploads/1/3/2/6/132682668/latebujunaxas.pdfIn PDF document text
    • https://tevadurut.weebly.com/uploads/1/3/2/6/132682826/lamifovasofem.pdfIn PDF document text
    • https://zurobalunaxul.weebly.com/uploads/1/3/2/7/132712088/nimaruwedenul.pdfIn PDF document text
    • https://govuxedosuwiwur.weebly.com/uploads/1/3/5/9/135962540/gobebubakikuj_jesoriwu.pdfIn PDF document text
    • https://vuxilimibipemop.weebly.com/uploads/1/3/1/4/131453056/rizexituxa-ximake.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a299c2ef-5e76-4b3d-a2e5-5a785729f895/minority_group_threat_theory.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/331bf913-dbbe-4649-8839-363b835203a1/xibipexelemop.pdfIn PDF document text
    • https://ba3a7bb5-edd2-4228-b29c-cf272df6a868.filesusr.com/ugd/bd1c09_3c128100e74a434b82845276d6a7e2d1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/11c02fd5-673c-4f93-8f43-ff35cefc2df6/hp_deskjet_2620_ink_cartridge_replacement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c70260e-daa6-406e-bb06-0f19e44ac5aa/can_google_home_play_music_on_my_phone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66d299de-942f-4f04-9b3e-2d60a9e323a4/how_to_find_voltage_in_transformer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f508a568-c523-49cd-b9a5-d5c9ad26ea81/wugafixibagonomovilil.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/spalding_portable_basketball_goal_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce3a2904-4e81-43f5-a08d-0ee68a825232/36248675245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f9be245-eed5-4d0f-8daa-f25587c70fe0/kisivobavubanami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6effbd91-2f05-449c-9f64-3fc8f242a468/pattern_keeper_cross_stitch_progress_tracker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/288cf85c-375d-4a0a-8b19-75a78ff9520c/36041673935.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24ae21d2-b543-4cf4-8016-c859b0e91997/how_to_setup_hp_envy_5530_printer_wireless.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/210d8971-e144-4c27-b740-2106a3faa9ce/en_nombre_de_la_rosa_pelicula_ensayo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc613df0-e1d5-4f89-b798-81d4daa981e3/wuwixokepino.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/mexukad.pdfIn PDF document text
    • https://88749095-6fd7-453f-8e8a-15b48fe47dd1.filesusr.com/ugd/e4d7df_3b96dd744a614824bc7a53b128c3f382.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3498317-bcdc-483d-946f-7c37e2ef994d/95663200778.pdfIn PDF document text
    • https://9fbaa0db-fe9e-443e-b503-3d02ea494c21.filesusr.com/ugd/d417e9_7d315507004d4cd195ffb07faad75801.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eda0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA0 4852 bytes
SHA-256: 080f2d0b7b8c64711cbd4a7dbf825ba6729adefbf0f668118f10af80823f9a6a
font_01_sfnt_off0000fe3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3F 11304 bytes
SHA-256: acc442dd9ba7f0798b3b820f59db2b2088fe2b69ee884ca0002ee297317eaeda
font_02_sfnt_off0001241d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1241D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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