Malicious PDF — malware analysis report

Static analysis result for SHA-256 17b3a7e35a90816c…

MALICIOUS

PDF

77.0 KB Created: 2021-01-01 06:15:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1c60ed0d0d7289a5244a74e90b4d731c SHA-1: 8d48c866c32e94708499d94eef8639387d7b3d3f SHA-256: 17b3a7e35a90816c5173e0d1bc6cc84deaee3b9c44537c25992c14b9795af5ae
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 0.9998

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://trafficel.ru/123?utm_term=newton%2527s+third+law+worksheet+action+reaction PDF link annotation
    • https://cdn.sqhk.co/fijajiles/hgCYjgn/62378469275.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/2UieHMK/zifowipapusu.pdfIn PDF document text
    • https://cdn.sqhk.co/wefekoferu/fp9XSgd/how_to_check_my_etisalat_landline_bill.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/hmgiP9M/menopasuxeju.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/626020d3-b0a4-4e5c-b5c6-7c68c17487d3/pumexilaxoteje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c1d0399-9e2c-4ddc-9879-0f62e5d6edc3/hexblade_warlock_5e.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7f02f52-bbe7-4a8b-9893-6c734dac9007/pebigidoverivafogataf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efd1947c-d1ca-4edc-a28c-abdd2c77c98e/zepatobeboreparasoxarigas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d8a4df3-982b-45bc-af15-07a6a02202f2/giving_a_way.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7da44613-4e1d-422e-b6b6-01e93bbabdb7/romantic_mashup_songs_2019_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/458fcb6b-9cac-491e-b0a1-201bf2b4964a/toy_blast_cheats_level.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/140074f9-4f45-4fe2-b646-1df5b3c98c94/buzz_cut_with_beard_and_glasses.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48121ad1-960e-4ef3-a505-33fc3c0af297/how_to_add_video_files_to_wix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87a3132a-a6dc-4d7e-8387-17538908f4d4/53405391043.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D9 4976 bytes
SHA-256: 461cb04e5863bf8dde1b51bb83da1305d6c1603c6985d52ea423a71746fd219d
font_01_sfnt_off0000f2d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D2 11384 bytes
SHA-256: 5c427ce6213d65a1c984e7f3812c84bf7878020b4f78c54f930027b0b79dbdd6
font_02_sfnt_off000118e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118E3 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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