Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e6c23a46e7e2ff…

MALICIOUS

PDF

65.9 KB Created: 2020-11-10 13:31:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: df3cc4bf99002e5d78ba281467a095e9 SHA-1: dddf584ec5fe4a0f9feae7611127577cd4ff0686 SHA-256: 57e6c23a46e7e2ff63c0f28b73750e7d8c762c7e684a3ea32ff9986e8fe02df1
96 Risk Score

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-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=polygon+chart+printable PDF link annotation
    • https://pewafusuzet.weebly.com/uploads/1/3/4/6/134662917/9f7a2f3ab9c1132.pdfIn PDF document text
    • https://jajewivazag.weebly.com/uploads/1/3/4/4/134491582/8d73a34ee.pdfIn PDF document text
    • https://repugonajipivup.weebly.com/uploads/1/3/0/8/130814926/3688228.pdfIn PDF document text
    • https://jubezotezuwu.weebly.com/uploads/1/3/4/4/134476040/364487.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/5ecaf146-4a6d-4bef-a6a7-ccde7fadce99/myanmar_song_mp3_download_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86c5638d-c65b-4950-8a74-712053b5d658/autodesk_fusion_360_free_full.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ace02acc-5465-44b8-92a4-46e008da5861/penegamefev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e88b88e-3203-4876-94a5-80adaab7c1d8/an_offer_from_the_blades.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/78523429904.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/57124816421.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/lusaluzix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4945df0-603b-4407-aec6-525a21300d21/74127885234.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/93092434157.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e5a6d46-6c75-4e4f-9743-1e1d6ccceb18/fepufej.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_off0000c70b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC70B 5260 bytes
SHA-256: d7ab19fe40d857ea08b6fce09885c632d346a70fcf4e546bc4ef58d0a35b579a
font_01_sfnt_off0000d8f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F0 9856 bytes
SHA-256: eaf3ecd6e81a180ceeadd89774795c2132524bf891d12df452fb4875de0d6117