Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c89f287196734f2…

MALICIOUS

PDF

79.3 KB Created: 2020-11-25 09:12:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f5ba46603b170f6beee8f0c376c7db07 SHA-1: 9938e77fb603042f4c0be373c71502c734fc3fdf SHA-256: 6c89f287196734f258e4cb276337790bab1756f27de887fb94045bb892c63ca3
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL that likely leads to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text that appears to be a lure, suggesting a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/strik?utm_term=agujetas+de+color+de+rosa+elenco
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/52571a45-f8fc-415e-8756-acb3988258b1/bakonapol.pdf
    • https://s3.amazonaws.com/limewub/konditionalsatz_bungen.pdf
    • https://uploads.strikinglycdn.com/files/01a4aaf9-2054-45ac-bc29-b4596f8b46d8/latokuvi.pdf
    • https://uploads.strikinglycdn.com/files/d43d0075-2f3b-460c-a514-f6157f2b03ce/elite_dangerous_how_to_deploy_srv.pdf
    • https://uploads.strikinglycdn.com/files/7f5cf6ec-c965-4279-a07f-9873f9026428/tetris_block_names_meme.pdf
    • https://s3.amazonaws.com/sitok/78022342264.pdf
    • https://uploads.strikinglycdn.com/files/275608b3-adee-4af7-a12b-a36096bc4c33/kazenod.pdf
    • https://s3.amazonaws.com/gupuso/74467147596.pdf
    • https://s3.amazonaws.com/tojabixefova/65994965162.pdf
    • https://s3.amazonaws.com/visagogijulep/zepikuvupofaninidadite.pdf
    • https://uploads.strikinglycdn.com/files/f486c843-53e1-417d-994e-662446375819/10487222371.pdf
    • https://s3.amazonaws.com/vatakefojunib/12394887677.pdf
    • https://uploads.strikinglycdn.com/files/c2b639b0-0e5c-42dd-b6fc-496513fdd951/pokemon_sun_battle_tree_guide.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f886.bin
def2e97756c1c0e6afbd2464331333e3aefbf4aeb730a3161ccd3a6579c863bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF886 5172 bytes
font_01_sfnt_off00010a33.bin
dee6b0af27f289deccb19f41a82853be48f8663f29d7e6c4362dd3096c11abd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A33 11220 bytes

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