Malicious PDF — malware analysis report

Static analysis result for SHA-256 97c2270cd594e070…

MALICIOUS

PDF

65.8 KB Created: 2020-12-23 03:42:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 59d610a2c07fbc9a1422c500186efd82 SHA-1: 5fbe89ea84198045bdd3f320d3ed62fcd9a722b3 SHA-256: 97c2270cd594e0704fd6eac51dc1f0f9cd5b0818d87cb651706a449d7c5f601b
96 Risk Score

Malware Insights

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

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier. It contains an embedded URL pointing to 'trafffi.ru', which is likely malicious. The PDF structure and embedded content suggest it's designed to deceive the user into clicking the link, potentially leading to a phishing site or malware download.

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://trafffi.ru/strik?utm_term=legend+archery+bow+case PDF link annotation
    • https://rizaxobekame.weebly.com/uploads/1/3/4/6/134698747/jawanejopaler_kevibeze_bizawadovon_kivapodekujag.pdfIn PDF document text
    • https://menudobuwowewil.weebly.com/uploads/1/3/4/7/134765252/jogowijide_tukami_metijobew.pdfIn PDF document text
    • https://sizojupitad.weebly.com/uploads/1/3/4/3/134332657/d59a7de65c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2042e6047f1ef2efea34/1606230082601/93009814626.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fe12e3787b1197541ecf5c6/t/5fe21141a473c454142aac7b/1608651073798/autodesk_simulation_cfd_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1015360f2895dc1e86a3c/t/5fc59ecc173fb5383b64e0c9/1606786764375/song_of_time_sheet_music_violin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7831c02a-a08f-4cfb-960e-1bb789c0bef4/chi_nei_tsang_massage.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6552ae2fce462bcb0fd92/t/5fc7a2a909f4d56e8f8b702b/1606918826401/angry_granny_smash_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1349d8df-b368-4a5d-8d15-6cb8a6063896/pharmacotherapy_a_pathophysiologic_approach.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cf07e50-3ca3-474d-8341-6ee8fe6328b3/35961538239.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/939231b0-695f-4893-8bab-6c68088d1760/37003628894.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/vukiduxapabofupupivod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc149a6a3bf4b14ababd147/t/5fc91e3dd92415575816274e/1607015999442/download_game_true_surf_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa19bdcd-e40c-4cc2-93a9-8f517a41a015/68685176057.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5709f2bbd740658251595/t/5fc8e492094cf7617dcbfd97/1607001235829/inside_out_characters_sadness_costume.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB756 5104 bytes
SHA-256: c2d6c072806454d48a132fa46deb45bfae36ac3a015389f85716fb91a8d866ed
font_01_sfnt_off0000c8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8AE 10540 bytes
SHA-256: 1adc766d31142b4c08fb2f7844bbe451a869885b40acdafc3a8c1e9cc471fd7a
font_02_sfnt_off0000ecba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBA 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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