Malicious PDF — malware analysis report

Static analysis result for SHA-256 11b70f40bc84c58f…

MALICIOUS

PDF

74.7 KB Created: 2021-05-20 12:11:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 229c8cdb0f89553ef290d1aa73f89943 SHA-1: 62cd4b5a028fd82db55e557b4e196cf2100efaa3 SHA-256: 11b70f40bc84c58f944018073e5938280f95590be210891f095fa176886237e8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document that contains an embedded URL. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URL, 'https://druttle.ru/strik?utm_term=how+many+points+for+conqueror+pubg+mobile+in+duo', is likely part of a phishing or redirection scheme, attempting to trick the user into visiting a malicious site by appearing as a search result.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/strik?utm_term=how+many+points+for+conqueror+pubg+mobile+in+duo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419847/normal_606e5655977cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420029/normal_600ea4387d78a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476281/normal_601e162450970.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450415/normal_60181cae22640.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454045/normal_5fdb5af595274.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410459/normal_5ffb8a5a6701a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379046/normal_5fd2fc18a706e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426944/normal_603625df6ab3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454543/normal_603bd2300cbc1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495050/normal_5ff8706e8f63b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_606e7cb529b8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372399/normal_606de7c069dd7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2497c62-c5f2-4d68-8d27-97813c6f0076/the_adventures_of_tintin_books_set.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ace6cea-064a-482e-a836-325c717dfd04/quran_with_urdu_translation_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efaae7b8-416f-4afd-8398-5e161f9b5ac5/how_to_reset_tws_i12.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/vazesakuruvu.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/51316745946.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0cfb0f0-8b52-4aa5-bb32-6588151d6482/nikon_coolpix_s6500_charger_cord.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e14fbbc-14aa-4787-ae93-84f6c06f0e57/ford_mustang_ecoboost_fuel_economy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0ad202a-9a83-4658-8b8b-cc5baf3b6650/mythic_odysseys_of_theros_review.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D0 5896 bytes
SHA-256: 50b4d3cc36eef54961dab2250ec856c4abd1e3677b5151945565bbebb2b1f2a5
font_01_sfnt_off0000f7d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D8 10956 bytes
SHA-256: c147dd9cca3b8e76cb67502ca49e82c1c5f3ae8e3051ba7aabd2fa0ae3c0db84

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