Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6cbadd7954afff7…

MALICIOUS

PDF

68.2 KB Created: 2021-04-30 00:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 377d7de66af896c83db980027e728966 SHA-1: c0d7eefa10b9ad0ffd5e707430abeeb07c19e6a2 SHA-256: a6cbadd7954afff7d2ab7255d3cf8c809f5758eb225dc86d4b6aa2903ce11ac3
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 0.9998

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://gimoguvi.ru/strik?utm_term=panasonic+kx-tgea20+additional+digital+cordless+handset PDF link annotation
    • http://astropsychology.website/teburevunixetiguxasakag23o4c.pdfIn PDF document text
    • http://instasurprise.online/nefobosodizutazuvikcucz.pdfIn PDF document text
    • http://freshka.fun/rixegefurefejaxofunttnz.pdfIn PDF document text
    • http://voicebftyi.com/free_qaseeda_burda_shareef_in_arabic50twx.pdfIn PDF document text
    • http://lisolu.org/99623160009eqs5g.pdfIn PDF document text
    • http://gonzo-3d.com/what_type_of_plate_boundary_does_indonesia_haveynlkm.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/adddb3ba-de29-48df-b453-0b982d209de4/icom_ah-4_loop_antenna.pdfIn PDF document text
    • https://3dbd840c-7861-42b4-b064-af52d1d2f4eb.filesusr.com/ugd/86319b_0b115586104745bf85f442e3b228a5e2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/bewitchment_must_die.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/waybill_dhl_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10a14362-5744-4c74-bdd9-d000970c6218/62020405052.pdfIn PDF document text
    • https://5e1449e8-5ae4-4a15-bc7a-ee23795bc964.filesusr.com/ugd/3a34a5_f44407373d594c2ea2d47b04359b8837.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/03c2c0c7-4f13-4ff3-94c3-25849ff51e2c/91011994855.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/513e327e-f9ca-48c1-85d4-6465c2c48d47/kitchenaid_ksm150_stand_mixer_empire_red.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/81862458410.pdfIn PDF document text
    • https://24218389-b518-4ca3-8548-65eaf758daa4.filesusr.com/ugd/c836c3_1c6349862b9945da87d5fdfb248bb94a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/metodo_de_ovulacion_billings.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/mijonad.pdfIn PDF document text
    • https://4f7f339c-9ee9-4921-a7ad-794169edd555.filesusr.com/ugd/fea72b_ac1a9550870c4e5ea41e74eea761c7a7.pdf?index=trueIn PDF document text
    • https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_fc8ce1a0419d4ef4b29e9040d3a212c7.pdf?index=trueIn 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_off0000cd11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD11 5640 bytes
SHA-256: 3f4e69ee112e9fa8974c6c43a5ea50e72f23ec7248c87e30797ecab5ff528986
font_01_sfnt_off0000e047.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE047 10236 bytes
SHA-256: d36cad500c8714c60761a4dc718be26f2603fd3c933ae36572ab8e5e038fe609

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