Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a2a55ec33206de…

MALICIOUS

PDF

75.8 KB Created: 2020-11-14 06:48:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1559a72b88866984abde156dd7a5be02 SHA-1: 1263b4ec284d92a1f26bb0bab12daaeb9828cf19 SHA-256: e5a2a55ec33206defb9862e39a26b3682d819e8f4459bb9a70ce48ca4c020460
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 0.9995

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://traffnew.ru/strik?utm_term=ph+de+los+alimentos+tabla PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413718/normal_5f99174751c09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381302/normal_5fa64e7356ec4.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
    • https://uploads.strikinglycdn.com/files/1072a491-cef3-40a3-a1af-2b17b26c48a6/fenorojexofiligem.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/vejiga_urinaria_anatomia.pdfIn PDF document text
    • https://s3.amazonaws.com/derefe/clearwater_kansas_schools_usd_264.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/raymond_forklift_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/91416804804.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4b7d316-326f-4390-8f54-005e8189d6de/king_kong_3_full_movie_hd_download.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/big_hero_6_wasabi_quote.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68846e22-0c29-4c3e-ab14-b68ecf994c06/kixudedoradulibabil.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/51674204903.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/sakewotewap.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d27d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27D 4896 bytes
SHA-256: 46c08e7b1c9c2630a64989510338ac7bb341f475318616b1ff81bd9e5bdd29bb
font_01_sfnt_off0000e2ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EC 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000eb79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB79 11968 bytes
SHA-256: a46e905e61fac06a9ae1fcaf9f4cab07e42f6c643494ed8d9497703d2d73a034
font_03_sfnt_off000112b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112B1 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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