Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95d16bae4435058…

MALICIOUS

PDF

66.6 KB Created: 2020-11-26 06:12:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1fb6e9739e33e98f2a62def774a73d10 SHA-1: daed5d51e713dd703525dc1e149c73cf5cbc24b7 SHA-256: a95d16bae443505834af49ef30d68207971d9302b3faff73c087722e7a74bdfa
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 0.9997

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://traffine.ru/strik?utm_term=showbox+apk+for+lg+tablet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461763/normal_5fbafc773aa1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5fa09dea5f961.pdfIn PDF document text
    • https://fajubixinusejeg.weebly.com/uploads/1/3/4/8/134850070/tupive.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374211/normal_5fa05fbcc9091.pdfIn PDF document text
    • https://paxobafu.weebly.com/uploads/1/3/4/6/134697986/8dab6.pdfIn PDF document text
    • https://kipunokazapalu.weebly.com/uploads/1/3/4/7/134774983/litupujegogidi.pdfIn PDF document text
    • https://rinefoza.weebly.com/uploads/1/3/4/8/134883618/3818801.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/2adb21e9-8c2a-4257-b477-6c9409a24113/80462166867.pdfIn PDF document text
    • https://s3.amazonaws.com/naramuro/senamabizetevi.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/gaxabow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/755b9a9c-6630-4860-afd9-6cb45577db1c/54091591026.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_off0000c6c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C2 5452 bytes
SHA-256: c5bf2f693883d394c10dc360e0a98e1bb08e08e9e0de7d78a80d607c306c4b08
font_01_sfnt_off0000d961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD961 10832 bytes
SHA-256: 4fbd079b51bbfc3f715db0c31f1bcca07eeff02c949980ba738e8bc3f2f1076b

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