Malicious PDF — malware analysis report

Static analysis result for SHA-256 3834f80ba4859be9…

MALICIOUS

PDF

71.3 KB Created: 2021-05-30 00:21:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5ffd15fe0c4ba1d96063ebcb583c2385 SHA-1: 863b0db666c2495e85853f57a125f0d437d49622 SHA-256: 3834f80ba4859be96e9315b0fca824d989a4771204a3c3b901246cf397cb70b8
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/123?utm_term=today+weather+report+in+ap+telugu PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465941/normal_5ffc56f5d2b7d.pdfIn PDF document text
    • https://jobovivubip.weebly.com/uploads/1/3/5/3/135392816/1310397.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459629/normal_606e2a11b6397.pdfIn PDF document text
    • https://sidufuzijek.weebly.com/uploads/1/3/4/5/134598689/wimisagav.pdfIn PDF document text
    • https://wotujajatedigi.weebly.com/uploads/1/3/5/2/135295120/nemuva-baxun-pazokusijeta-giruke.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403808/normal_5fe118866d8cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391305/normal_5fd5f484517e6.pdfIn PDF document text
    • https://larulevi.weebly.com/uploads/1/3/6/0/136004384/7146099.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408709/normal_60122030a20dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485152/normal_606e24a2068e5.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/1fcf9146-281b-4b40-abbd-9a208e20f9da/como_hacer_un_resumen_de_trabajo_en_espanol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3b426fc-9b3b-48c8-89f6-bd86202a2be9/74949287843.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05d7aabb-a29e-4bc1-97ad-6027b0bc834f/chess_strategy_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0081458-4b2d-423a-84f8-7f6b8b5b9938/82298410664.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c24bf27-16d9-4215-bc74-fbe600126875/7206690893.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9822519d-0de8-4232-8183-8c0b2181f39d/zebco_slingshot_rod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc7d7447-6f0e-4d91-af6b-59e6c1817c01/dibuku.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 8

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_off0000dbbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBD 5184 bytes
SHA-256: d143899f1960372f19f1aebc3d44839fe65fa89d612833b7e9cde26c862cf8b3
font_01_sfnt_off0000ed78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED78 10168 bytes
SHA-256: 7f9b474b498193386b976803c96f3439e3d2153b68e269f6122d6cc9c81bfa01

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