Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6628154400f2239…

MALICIOUS

PDF

69.3 KB Created: 2021-01-30 02:13:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 95a7d4fb1b0b3fa8c860c4e1a33a26c3 SHA-1: affc5ead4565d685ef8156e4c4ab2227fb2ad88e SHA-256: f6628154400f2239303597b62cf14ee900ee0d8c586cbff8b5253c9cd61c4646
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as malicious by ClamAV and ML classifiers. The document body, though heavily obfuscated, suggests a lure related to 'Temple university ambler map'. The primary malicious activity involves directing the user to external URLs, likely to download further malicious content or phish for credentials.

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://druttle.ru/123?utm_term=temple+university+ambler+map PDF link annotation
    • http://dijawobal.iblogger.org/gikadomegedaz.pdfIn PDF document text
    • http://my-favshopg.online/best_hard_sci_fi_books_2020nnmdd.pdfIn PDF document text
    • https://cdn.sqhk.co/filovosa/eRGgjeO/mamubu.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/pnbjbgj/59232653656.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobibab/xXPbidM/vorizefavugamip.pdfIn PDF document text
    • https://cdn.sqhk.co/vefapatape/H1jhkmq/polureburij.pdfIn PDF document text
    • https://cdn.sqhk.co/nivopekodi/mgjrFyD/firaxiruputefuvuwonon.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/xapidajovaji/kezisapibukupexewan.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/joxuxupetijuverarufok.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/cyberflix_apk_android_2019.pdfIn PDF document text
    • http://danofawo.rf.gd/damilopas.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/fewekixexiwuverafero.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/screen_recorder_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/66733080327.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/96489668106.pdfIn PDF document text
    • http://lelupiborojez.epizy.com/80250891446.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/albert_einstein_historia.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/ridixetaba.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_off0000d356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD356 5216 bytes
SHA-256: 76056a6b762c741c23911041afa30811f5f5c3366162104a552f543240c82c68
font_01_sfnt_off0000e501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE501 10424 bytes
SHA-256: fa649f82465fbd358830298e82812782a701c084c62219b36691f51f65b51abe

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