Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc6e6c06ab5153e2…

MALICIOUS

PDF

201.2 KB Created: 2021-03-17 08:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fd1743e61fb6386d0e06249bf880160 SHA-1: 766bbf6b608378ae3e31dce6118d777417c21bd9 SHA-256: fc6e6c06ab5153e27f010487bf36e883e28f2bbe8fd5136ce39c48c24b22a15f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://ponafet.ru/strik?utm_term=trials+of+apollo+the+burning+maze+jason+death
    • http://kikababono.mywebcommunity.org/nuzulimakubunek.pdf
    • https://riwurarelix.weebly.com/uploads/1/3/4/4/134484082/a5339.pdf
    • https://bejolikide.weebly.com/uploads/1/3/1/4/131437094/6044204.pdf
    • http://gedadekenoz.mywebcommunity.org/how_to_turn_on_an_ipod_nano.pdf
    • http://rolivazugatar.scienceontheweb.net/what_do_firmament_means_in_the_bible.pdf
    • https://zesijijonade.weebly.com/uploads/1/3/0/7/130776416/vozawa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://05efeaee-ea5b-4dc8-bddc-a5098cc0dcbd.filesusr.com/ugd/c06c30_e51d2c9cf22f42418a698463ba6927c4.pdf?index=true
    • https://s3.amazonaws.com/tonemakopinibem/latest_ringtones_for_android_free.pdf
    • https://a0bbd489-bf03-48a0-8e93-88abd0751e5b.filesusr.com/ugd/370ea2_daf7a30cec2b40da91900ca2cbbecaef.pdf?index=true
    • https://3bcdeb60-9876-4d14-bc0a-1dd1632c647c.filesusr.com/ugd/16a96a_e2e9be0b63754a989dee30a6c2a9fc10.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e08fe733-2cad-4204-a318-af8c2d6d02d1/how_much_is_a_nintendo_ds_lite_worth_now.pdf
    • https://uploads.strikinglycdn.com/files/01a67b90-6d49-46f3-ae24-1a8a853a3cf1/how_to_repair_a_remote_garage_door_opener.pdf
    • https://cc46d2ba-e7cf-42f8-aa62-b015a0c17ef0.filesusr.com/ugd/d180c3_d73258ff24ef437196ef5bcad136dcf7.pdf?index=true
    • https://s3.amazonaws.com/tadevewuju/85463738104.pdf
    • https://4ac36a2f-1533-488b-b282-cf34cdace458.filesusr.com/ugd/bcfc12_19ad594e87fa404ba70c6f3eed3be563.pdf?index=true
    • https://d992f69e-bc5b-430a-92d7-abfd66d0380b.filesusr.com/ugd/6f7357_d8eb3dceb2144e7c9d4668a769b10c70.pdf?index=true
    • https://2dcb0092-dd22-4cef-90c1-8c398f802bb7.filesusr.com/ugd/ff3115_ff656779091143e1a205fd60edde8823.pdf?index=true
    • https://uploads.strikinglycdn.com/files/753a89f7-3715-4b7e-875a-2f620c6a50e4/ruger_sr22_review_hickok45.pdf
    • https://b8436764-02b3-4471-8711-1e8fed235cf0.filesusr.com/ugd/3b3fbb_65402ca1e4ef48deb8d6e7f053a74836.pdf?index=true
    • https://c4bedd8b-a3e9-4aa8-9751-a6fde4035b7e.filesusr.com/ugd/037f08_fd00e4b945b64df0befa02409aaa9581.pdf?index=true
    • 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_off0002da98.bin
16c8c0611564d1fb24c8dace0bec7cec3aed4a629ee7d4936367a872867f8bca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA98 5668 bytes
font_01_sfnt_off0002edb8.bin
f94a65b0f3b32390fe86045c5648227f48f65a662c6634b25a9c917fddc7a1d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDB8 11144 bytes

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