Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dcf044ce6fbdc9b…

MALICIOUS

PDF

74.5 KB Created: 2020-11-11 09:42:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: c060caf9117b9159b560bbf8844bf4c4 SHA-1: 17f6001620f2ed216f7070e42c9e01dd5b2ba88c SHA-256: 2dcf044ce6fbdc9b92c8ce0fe2ce4c261e0f16619631d62a64414d7938cfb8e7
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that suggests a lure for downloading 'popcorn time apk for pc'. While no scripts were explicitly extracted, the PDF structure and embedded URI indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/123?keyword=popcorn+time+apk+for+pc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385213/normal_5f9784e31450f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370528/normal_5f9a8b539de76.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/02033434-40d6-429d-9381-dbff861320a1/51116961202.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e167b240-57ad-4312-8138-c365d320441b/ahsoka_tano_vore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38e44b61-3acd-4dc7-8dd3-3745d32c1655/nvem_mach3_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83c36895-50b9-414d-b69c-2e572cfac810/zulozotawixube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f9e6f05-26fb-42ed-bdcb-43cdee694885/nimesaromebiza.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/lobeniwawadedapirej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47f3dca1-3e48-450e-8774-c3f2de521ae0/zelda_botw_100_complete.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fac1a590-48d7-48f1-bbe7-523f01808870/wudaganavabirij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77d04e89-4628-4ae0-b6f3-5ec516bb34ae/gevimobokopifojemaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d2f2d06-1606-41fe-a5c9-c09b806546c0/gisuwimuziv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ec135ec-8f29-406e-aff5-df74e56a275b/47933212535.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79ec12bb-21dc-4d40-9d06-8df982d26d06/wiwil.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8D2 5016 bytes
SHA-256: bd364f1c1df5f8d27aea7ba5d54caae7fd737fd48498ad65094b0cf14b9eb09d
font_01_sfnt_off0000d9d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D1 10780 bytes
SHA-256: 8a5137a1e49837d97565e0e1cffcb2efce65e7d991dfa2ace08fe4ee73c8f883
font_02_sfnt_off0000fe93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE93 19236 bytes
SHA-256: dacc418962a394b1203a6c616ee0d3359d41322035a3f5187df92f5af1819fe7

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