Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac96a13de0f54fbc…

MALICIOUS

PDF

79.0 KB Created: 2021-05-25 03:58:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 64a0d0f9782de12dbfaaf50877415f80 SHA-1: 227d800c17ab20525086784fdc83cd9c39a035da SHA-256: ac96a13de0f54fbc3823ea686ddee54badf0877c6dcaaaecb0be24d2e9892b01
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a suspicious domain, likely for phishing or malware distribution. The document body, though partially corrupted, suggests a lure related to logging out of a service, which is a common social engineering tactic. No scripts were extracted, but the presence of external URLs and the overall detection profile indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/strik?utm_term=how+to+log+out+of+netflix+on+sky+q PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381344/normal_606a0c8ee1525.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477635/normal_5fffdc7a46bfe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379355/normal_5ffb51e65b11d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369161/normal_60036cee2a1bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420764/normal_602fd21d2b9f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462992/normal_601d44edd453c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366325/normal_6013f5804295d.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/3a34b88e-bbf6-4f3f-9cb8-d0cb57b27336/78655441380.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4d06a26-6998-412f-9a82-855b304b1a10/27470983264.pdfIn PDF document text
    • https://s3.amazonaws.com/memexelu/91626954578.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/jirilewuzodivejakel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df1aa4b5-3997-48a5-ae58-9ac5282792b3/monitoreo_fetal_intraparto_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/canon_mx300_manual_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bad8683-9bc5-4110-bbcc-d89e4b4316c8/sodastream_cylinders_amazon.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/cadmium_melody_ringtone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3dbda0d-ca00-417a-9d94-3b91c51c814c/savage_in_limbo_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d04e4cf7-6a84-42b9-ab66-3b9ca6c8eacb/17582065406.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a234779-5e94-49e3-8e08-553fcd4905e4/how_to_play_the_dice_game_left_right_center.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e45eaf40-99b8-4d6f-9b3e-1ce9c8741030/94382033418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ea55ebd-6d73-41cb-9229-ebd8aa670a29/medical_terminology_a_living_language_5th_edition_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5912715f-9c89-48d8-a56f-8ef289a418be/81331689384.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0af7bce4-b953-4435-a7c2-3f7ee3552b7f/what_words_start_with_jar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9da55904-8a60-4565-8baa-8b663d1f35b0/salems_lot_1979_movie_online.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_off0000f626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF626 5040 bytes
SHA-256: c216c6e8cc88ecc4d9922c62350b5014ca5cedb910f03399efbb91ae846ece7a
font_01_sfnt_off00010788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10788 11524 bytes
SHA-256: 92039f8d354eef692d555c39629b3a2f07254b37833aa18185e98070da78db05

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