Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4c7d2a84bfa1c56…

MALICIOUS

PDF

81.0 KB Created: 2020-11-29 05:47:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: b2de2f7f71a4f2467e03557d0ce605d7 SHA-1: d7c29f9b44a2045cdd3dd7a0056d305dacf9ba84 SHA-256: a4c7d2a84bfa1c562b5744a32346f2be56ffe1bad4d7b6adb95d68287ffd2f82
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 0.9996

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://traffset.ru/strik?utm_term=classic+wow+warrior+weapon+progression PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4468554/normal_5fc30eb31523d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458833/normal_5fbc8902b5d74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383917/normal_5fc1324106d5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382412/normal_5f8bfafe17b00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_5fad7a06690ed.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://uploads.strikinglycdn.com/files/7cf94992-f63f-4435-a11b-7e648b5f5ce1/plants_vs_zombies_2_mod_apk_hack_all.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bb5c610-b706-4b7e-a96a-99980de22d72/alexander_the_great_map_activity.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/35831968208.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f716739-8069-4957-8566-35c91aab678d/zovifimurijizej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f77e0e1-9bc5-408a-9626-49c62fd1a43d/bloons_td_battles_medallions_cheat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9472232b-0e32-4897-8c3b-61d8afcd23dd/zuvokaromofokosovib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/624a3249-c301-41f9-a2fb-7c05b9a0709f/re_zoom_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b448e8c3-6494-4a1a-baeb-612e54a31f75/mewaz.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE721 2996 bytes
SHA-256: b019f38abe3914d40143c9ef5fb70863412f4d36a85e04a42951fa494b6f577b
font_01_sfnt_off0000f1db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DB 4924 bytes
SHA-256: 163d9c413e7ad9316ccda8b637f44b4b277f4e3fd368bb5bb9386c10c908caae
font_02_sfnt_off000102a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102A8 11132 bytes
SHA-256: 906fbe16448945f2da64c5b36032514109be8b2ca09a24388e546ae56b819fad
font_03_sfnt_off0001286b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1286B 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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