Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5c71bd8b4827a18…

MALICIOUS

PDF

104.8 KB Created: 2021-03-08 11:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: d558b498e2f2e414d6e73e84fd43ad24 SHA-1: 042777de12ea9cf0e16a9217f0fbecc9937fe192 SHA-256: d5c71bd8b4827a18538e9e437b36d80d597483b7f9b02e44733632a8ef4b9b57
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that is likely part of a phishing attempt, masquerading as a trophy guide. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of external URIs suggests the PDF is designed to redirect users to potentially malicious content.

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://bologen.ru/123?utm_term=infamous+second+son+hidden+trophy+guide PDF link annotation
    • http://suzamajotibe.mywebcommunity.org/polygons_worksheet_answers.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/zojemazagexokelojevekow.pdfIn PDF document text
    • http://dosaxixapaxa.medianewsonline.com/sifekogelid.pdfIn PDF document text
    • http://gejudukofomose.iblogger.org/47036035857.pdfIn PDF document text
    • http://geniusenglish.space/398585914543nerx.pdfIn PDF document text
    • http://nasty666.space/85919358564k58u.pdfIn PDF document text
    • http://odemebayisitrafik.com/remove_watermark_adobe_acrobat_proqmxxs.pdfIn PDF document text
    • http://alkostore.xyz/serojimu6kqkz.pdfIn PDF document text
    • http://madewithsunshine.com/garbh_sanskar_book_in_gujarati_free_download4o7la.pdfIn PDF document text
    • http://fesotisifofil.mygamesonline.org/47597417834.pdfIn PDF document text
    • http://yellownatural.space/edit_adobe_files_online_freeun3ew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xirixepo/95457333129.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/lovers_like_us.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/28870142455.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/45140035385.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/zezaludomujesozazawi.pdfIn PDF document text
    • http://mifazafodig.rf.gd/lajupaliwuwudakidena.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/how_to_hack_a_vending_machine_with_no_money.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/bekhayali_full_song_hd_video.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_off00015d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D17 5576 bytes
SHA-256: 082824fd2fdea2331f2aa2896695c9d9b35ed92ac2a7071b89666a1948f58b53
font_01_sfnt_off00016ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FF3 10856 bytes
SHA-256: d904e55dd53acf0c2fcd1dd5fcd08449de143ba46fc822c70ec7b5da2e9aba69

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