Malicious PDF — malware analysis report

Static analysis result for SHA-256 14dee85160d76211…

MALICIOUS

PDF

76.4 KB Created: 2021-05-14 12:04:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 00416f45b6077dcd4e2c4b71459dd7d4 SHA-1: 2338a0c0ae8d4fa1daa68ef91822e7e9b04aa052 SHA-256: 14dee85160d762113ccc510ec99a1c33b70640a07dedcedac38867368e204ae7
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=life+books+and+everything PDF link annotation
    • https://cdn.sqhk.co/tokebamojos/TVKidgr/freeway_closures_5_north.pdfIn PDF document text
    • http://lipuwisapi.mywebcommunity.org/69079675750.pdfIn PDF document text
    • https://cdn.sqhk.co/desiketomasu/oIqlt8a/rational_exponent_equations_worksheet_with_work.pdfIn PDF document text
    • https://cdn.sqhk.co/kisesawaropo/idshiUM/duvodowifubiralilo.pdfIn PDF document text
    • http://kajuzumanaz.sportsontheweb.net/jafomuguzu.pdfIn PDF document text
    • http://giwewigipebi.medianewsonline.com/garmin_drive_60_gps_review.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a2fe464c-28d1-4db8-bb2d-552ad9bc2f4d.filesusr.com/ugd/941bb1_ffccf83b4c2a4a909b7654be14e2c5e5.pdf?index=trueIn PDF document text
    • https://11ca5eb4-0abe-4d5d-8073-3f36f6088e80.filesusr.com/ugd/8b62d8_028732b28f79437985c979fb61ef1515.pdf?index=trueIn PDF document text
    • https://50b44c92-959e-4a15-bf83-93d6b2b518d6.filesusr.com/ugd/3ed44c_b35b07cf8b11411d9ff21b03e97e6a0c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/77fa764e-b5f9-4af9-9352-5edabd893cb9/posie_libert_paul_eluard.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/how_to_be_a_good_cashier_at_walmart.pdfIn PDF document text
    • https://332892e0-6a2b-40ad-946e-e7c92c61c867.filesusr.com/ugd/3e5d97_4a65fb91a2b64120bca8a0350cd56fcd.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/653749a3-886a-4cb9-a5ab-9acaa272940f/xukoki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cf6fa19-3c0c-4395-8402-2daad4413d9b/6198586312.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb49d7e2-3f1a-428a-a123-f0f99beb8af0/brother_ls_1217_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/608b1656-7254-4b3e-ad2d-1b339adae653/vetexexuzarakofo.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/movies_counter_marathi_2018.pdfIn PDF document text
    • https://ba30dffa-51fe-4caa-9472-6f142403a9bb.filesusr.com/ugd/c2007e_87581ac040c84533a82f8ba2424bcebe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eda7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA7 5444 bytes
SHA-256: 8c97ed7e65ff45cdcd9ddc895e210dec8126249c899054b06513aced4add4428
font_01_sfnt_off0001003b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1003B 10680 bytes
SHA-256: 828c716212b8d8d27df465bef011cfa20d386169df3128ae3ebdcf44eddaec4c

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