Malicious PDF — malware analysis report

Static analysis result for SHA-256 1450f86562145597…

MALICIOUS

PDF

76.9 KB Created: 2021-02-24 18:59:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: a3c136ea6ec192db1df10356b0af3e42 SHA-1: 9bf6c179e092251cef7a34171c58e90926bfeee0 SHA-256: 1450f8656214559790b9d118598e7cb20430497d12a7b6fbefdb06a36c74f3d9
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the presence of multiple suspicious URLs further supports this. The document body, though heavily obfuscated, contains text related to a search query, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/award?keyword=lord+of+the+flies+sparknotes+chapter+12 PDF link annotation
    • http://wownatural.fun/34413458029gwwiy.pdfIn PDF document text
    • http://wide-take.top/mtk_engineering_mode_guidenug52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383795/normal_5ffe19a32459f.pdfIn PDF document text
    • http://vilopeg.xyz/bazakibelatefoziktvu9u.pdfIn PDF document text
    • http://oneplusonemain.xyz/38601800161hwkas.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
    • http://viporikapopafep.epizy.com/waymo_self_driving_car.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/best_epson_printer_for_sublimation_conversion.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/weliwanidewijutavivimog.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/android_tv_box_ranking.pdfIn PDF document text
    • http://xuvunemomot.epizy.com/pilakomekilumejaluwev.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/attestation_formation_sst.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/selibanuxig.pdfIn PDF document text
    • http://segoxegigo.epizy.com/hdfc_ergo_car_insurance_motor_claim_form.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e60f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60F 5220 bytes
SHA-256: d82ce5ab199012ef501304e2614639db00aa94baba53036f65401bf47de42b7d
font_01_sfnt_off0000f7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7C9 9692 bytes
SHA-256: dbaa7d19f43ea509d17cb7ea5f9a2f33ce5759d664e24f1385f3a384969ccb39
font_02_sfnt_off000118ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118EC 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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