Malicious PDF — malware analysis report

Static analysis result for SHA-256 118a56fc47232d08…

MALICIOUS

PDF

72.6 KB Created: 2021-01-26 09:21:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 83e3b24aaaad12edcb545febd371ab08 SHA-1: 9112001dd386873023d505a58a69a8be9eae32f6 SHA-256: 118a56fc47232d089d763a6074778f5363794ad51c0ce960da395a552fc32c8c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'traffset.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely used as a spearphishing attachment.

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://traffset.ru/123?utm_term=joe+rocket+mesh+jacket+used PDF link annotation
    • https://cdn.sqhk.co/kugorazig/JPKHhjx/amazon_selling_fees_vs_ebay.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368481/normal_5fe32c587ba95.pdfIn PDF document text
    • https://cdn.sqhk.co/mobirewin/iajghjq/bissell_handheld_carpet_cleaner_walmart.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427499/normal_5fdd5cd1ddec6.pdfIn PDF document text
    • https://cdn.sqhk.co/nezazexador/5hethgx/49592185630.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380076/normal_5fe1c94f63141.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393346/normal_5fc9a3a7e0ca0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402960/normal_5fec5060b8373.pdfIn PDF document text
    • https://cdn.sqhk.co/bimeniwog/dygevpa/download_lost_miner_premium_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jenotefi/geheieZ/sajilogogoxegisopojowo.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://s3.amazonaws.com/pululusodogi/90831947293.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/8297691948.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/dressed_to_dazzle_reading_answers.pdfIn PDF document text
    • http://ziwejozaz.epizy.com/55930105522.pdfIn PDF document text
    • http://nepunefetonub.epizy.com/tinukewi.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/bazeteponafazukuxuvuxefej.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/fevegomesuviba.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/boiler_control_system_engineering.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/du_b._ed_application_form_date.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 8

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_off0000d08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD08B 5004 bytes
SHA-256: b2bc899b41282f3f2b97b0f40e303bc6e62eea3b6ecd13f5d79ce2b9ec13f1ac
font_01_sfnt_off0000e190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE190 10448 bytes
SHA-256: e582889dd9d49c643222999e80e977e0663b24cf4442e87a3aca7ea2a8a50a9b
font_02_sfnt_off00010540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10540 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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