Malicious PDF — malware analysis report

Static analysis result for SHA-256 e75e8204b34984cb…

MALICIOUS

PDF

60.5 KB Created: 2020-11-17 17:21:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a15c4d3950723766f7ad73c597be7287 SHA-1: 25ce73901bdf64e2c40f4a842beb7c9e75fe04a6 SHA-256: e75e8204b34984cbfc13c3c2b86d26bcd97cf79e427f35c5bddfd5ea00c2d244
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffnew.ru/123?utm_term=autopage+rs+730+install+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405929/normal_5f938d7768c8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384152/normal_5f8d70741d897.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451736/normal_5faeb0fb83629.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368468/normal_5f9372169e0b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405197/normal_5f94c09330276.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478146/normal_5fa6c3c4033d5.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/537f9195-e3a5-403e-840b-b448cab558af/47414671282.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/188e70e6-8906-433a-a7fb-24870838590b/lalitozomopapoxuwideveji.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/mountain_victory_william_faulkner.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36e9a52d-4e23-4877-95c9-cafcc36a4128/jixowimeburut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efe4cc5f-9045-41ec-8906-10053a145afa/kusojakogile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/252dae49-4e8d-46ef-904e-28df551e89b2/medical_billing_and_coding_for_dummi.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/ganawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6c23a2e-5d3c-4c05-942d-fb78da1ecfad/sims_4_apk_download_android_no_verification.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10e1a64e-0189-4e7c-b440-2f6047558085/fitaranowez.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b19d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB19D 5516 bytes
SHA-256: cabbadee74cf9e0757244a695ded6b12318d4dc9a949e3a24d0f2efcfe15a73e
font_01_sfnt_off0000c44d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC44D 9692 bytes
SHA-256: b5d5293bd8f0f8783d354a6c5876089a70321b889a6cbb7d91108213543267e7

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