Malicious PDF — malware analysis report

Static analysis result for SHA-256 97e345df9edd1671…

MALICIOUS

PDF

150.1 KB Created: 2021-03-16 03:12:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6ab40872a5092bd06c8e63e5e9d6cfe4 SHA-1: 22878ec0e9b4cf6d243c8c6181f1b180783cbbed SHA-256: 97e345df9edd1671a0e18c90abdde44b0644c4a964d16e7ce440ac5840f7beb6
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 0.9994

Heuristics 5

  • 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 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://soxebez.ru/wix?keyword=accounting+solution+manual+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403408/normal_5fca985d72e5c.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/easy_guitar_tabs_for_beginners_popular_songs.pdfIn PDF document text
    • http://bioforcecolumbia.site/autonomous_research_blockchaintik6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485310/normal_5fd61dcad6c60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479938/normal_5ff659891bed6.pdfIn PDF document text
    • http://salestore.pro/orwell_shooting_an_elephant_summaryb4hpa.pdfIn PDF document text
    • http://tuimag.ru/79426202426z3ps1.pdfIn PDF document text
    • http://tipografiyav.moscow/run_and_shoot_offense_madden_19it01q.pdfIn PDF document text
    • http://crispyset.online/53475911182benji.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/3897750836.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
    • http://jumepenitujox.atwebpages.com/tiwajawoxajexibitesafije.pdfIn PDF document text
    • http://forojiwimudobo.atwebpages.com/ponosuvefejurumotidikat.pdfIn PDF document text
    • https://63d876aa-455f-4c41-9c38-50747f3e0b95.filesusr.com/ugd/a220d5_69c65925fa174ebaa7e88b3a3e0adbff.pdf?index=trueIn PDF document text
    • https://e1ca4115-fb55-43f9-84f1-eaf814f8c83f.filesusr.com/ugd/18122d_6061f0dfa8694771b08bb17734705663.pdf?index=trueIn PDF document text
    • https://b81e1767-bb0d-4562-9f98-cfef66859bb1.filesusr.com/ugd/b48b60_ce2e60be00524fb9b791dc59a673567b.pdf?index=trueIn PDF document text
    • https://e61e9f85-32c5-4861-9fd4-b89109084c35.filesusr.com/ugd/2e4eb4_d9ca4fb841d34b26adc8daa9724afc12.pdf?index=trueIn PDF document text
    • http://subogerilazelo.atwebpages.com/xapim.pdfIn PDF document text
    • http://rafotafu.epizy.com/reset_form_on_submit_angular_6.pdfIn PDF document text
    • https://3175e58c-9db9-4d87-bcb9-15e03531d93d.filesusr.com/ugd/c93210_58eb2ffbf89b478db45607e352ed3f54.pdf?index=trueIn PDF document text
    • http://mudivakerimenog.epizy.com/manualidades_navideas_recicladas.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002020d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2020D 5304 bytes
SHA-256: 759bfa20169a26b84627f883cf47abf13d5c87d57e1dfed1691e8615516fa29b
font_01_sfnt_off00021407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21407 12188 bytes
SHA-256: d8e3e2fa39d71e9c57ed80554d78065c6d7c4d33a3a9df179bc73d41f735662b
font_02_sfnt_off00023c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23C51 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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