Malicious PDF — malware analysis report

Static analysis result for SHA-256 035de753623c4f67…

MALICIOUS

PDF

79.0 KB Created: 2021-01-25 08:11:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6c35ad74f1ed29f764ed2d54d1a34e02 SHA-1: e2cfe295dd55afb962533d7092880b04044d230a SHA-256: 035de753623c4f67483b793181c26b5eac2cca4d60e63a9e436c962e2ca34874
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-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://traffking.ru/123?utm_term=enhancerx+reviews+yahoo PDF link annotation
    • http://jumbochecker.com/47909365663kmau7.pdfIn PDF document text
    • https://vinifobak.weebly.com/uploads/1/3/5/2/135298549/pojexebasumavadafuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475847/normal_600206c0275c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467576/normal_5fe1804bba768.pdfIn PDF document text
    • https://fazerirusabutef.weebly.com/uploads/1/3/1/3/131381144/310d96.pdfIn PDF document text
    • https://laropavo.weebly.com/uploads/1/3/4/5/134585926/b420452ebf176bc.pdfIn PDF document text
    • http://natlab.ru/beige_dining_room_chairs_set_of_6xgr4d.pdfIn PDF document text
    • https://rudusixan.weebly.com/uploads/1/3/0/7/130775573/2241352.pdfIn PDF document text
    • http://insta-sale.site/bluetooth_serial_terminal_windows_7_downloadc2bho.pdfIn PDF document text
    • http://naturka.space/bird_paradise_delran_nj4m1xg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471723/normal_5ff8b08e5f9c1.pdfIn PDF document text
    • http://stikc.xyz/stick_shadow_war_fight_apk_free_downloador6nb.pdfIn PDF document text
    • http://best-store.club/pop_punk_road_trip_songsbsqkq.pdfIn PDF document text
    • http://zzzmmmmejjj.space/physics_class_9_bdk87mr.pdfIn PDF document text
    • http://skidki-day.site/gunshot_smoke_pngstz8q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495264/normal_5ff55c1aa2509.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476420/normal_5ff6a25bad366.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bidivo/759357989.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/bemoboku.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7A 5132 bytes
SHA-256: b522c864cc0ca2e94ea2aa667cd268ec8b6d88fd6145b10ff012ff7fe17fc36d
font_01_sfnt_off00010d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D05 10072 bytes
SHA-256: f84a3f281656fac2688059872d10d662a6d7e1d33a31ea25a616c7feae142377

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