Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc0e4d5a0fbda62d…

MALICIOUS

PDF

75.8 KB Created: 2021-02-12 07:46:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7057874dd9fdca7dc413b96cec0a1a10 SHA-1: 7136993bcc896797f42be920afbeb3de13a79694 SHA-256: bc0e4d5a0fbda62d94f9e1369730abc59ab7990d34070ad6653102030ea5d682
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text that could be interpreted as a lure for a 'protocol side mission'. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing or malware delivery attempt.

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/wix?keyword=g+phillips+protocol+side+mission PDF link annotation
    • https://nivujetomut.weebly.com/uploads/1/3/4/7/134753784/befine.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/eghjftq/dunamirorinurasasov.pdfIn PDF document text
    • https://fatibetoliwan.weebly.com/uploads/1/3/4/7/134731660/mijolo-leziweba-kasovawazusoxo.pdfIn PDF document text
    • https://nagiwudulowep.weebly.com/uploads/1/3/0/7/130775657/komumalikewoma_puxowebutekewi.pdfIn PDF document text
    • http://springital.fun/mathematical_programming_techniques_kambolir4i.pdfIn PDF document text
    • https://raputaluwim.weebly.com/uploads/1/3/1/6/131606275/f0b8d.pdfIn PDF document text
    • http://espaceabonne.com/42702771087xoayc.pdfIn PDF document text
    • http://kushtanash.ru/after_effects_wedding_projects_freezfbwd.pdfIn PDF document text
    • http://wuwisometojone.66ghz.com/avery_5160_template_margins.pdfIn PDF document text
    • https://cdn.sqhk.co/mifopanikil/cF86Y4K/suxafosakijixuxodom.pdfIn PDF document text
    • https://cdn.sqhk.co/zaperarori/hgvuifp/sunumute.pdfIn PDF document text
    • http://hookup154.online/39318485166hurk2.pdfIn PDF document text
    • http://rimka.xyz/1000_questions_for_couplese2fhz.pdfIn PDF document text
    • http://profyhouse.ru/fubepakoneli6xex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tufukupetateto.epizy.com/delivery_challan_format_in_gst_excel.pdfIn PDF document text
    • http://vefapiba.epizy.com/impressart_stamp_guides.pdfIn PDF document text
    • http://gasukexopesifu.epizy.com/bangla_adhunik_song_album.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_off0000ec5b.bin
27501051257c471097e6a77bcad875d9626c44cace5d643f2e7e1dc1f234ad2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5B 5136 bytes
font_01_sfnt_off0000fda8.bin
a447ff9a569d7bc4c4e661ff57c016c35732656dee06ee83224a1e9c0eda64e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA8 10628 bytes

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