Malicious PDF — malware analysis report

Static analysis result for SHA-256 a07950fb0a7845d9…

MALICIOUS

PDF

70.4 KB Created: 2021-02-20 17:29:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3822d2d242ed30d7209d7aea210a5538 SHA-1: 6d62352b1c5a65c24fdae0360e87965ff0e734c8 SHA-256: a07950fb0a7845d9943778149ceaf5ca7171d1fecb64f227a44aad8bf7c00191
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

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://jacksth.ru/123?utm_term=trane+humidifier+pad+baypad02a1310a PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4529780/normal_5fe2550b4bebe.pdfIn PDF document text
    • https://cdn.sqhk.co/guledijuxi/LCgdejb/bendy_run_mod_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366623/normal_5ff15bbabe065.pdfIn PDF document text
    • https://cdn.sqhk.co/xoradofexul/uijrVib/xubemigisavalek.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/bihchfx/screen_timeout_iphone_x.pdfIn PDF document text
    • https://cdn.sqhk.co/vudebalox/jgge0ic/rich_girl_shopping_dress_up_fashion_games.pdfIn PDF document text
    • https://cdn.sqhk.co/xedufoga/hihhehb/vizekuwozavejuxami.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/ia1icjd/79396181605.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385617/normal_5fe5e700662da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460966/normal_5fcf62fb58293.pdfIn PDF document text
    • https://cdn.sqhk.co/gasubapo/hayxhiU/5475167677.pdfIn PDF document text
    • https://cdn.sqhk.co/kogujipubap/sjepihn/denerojokixupanuzus.pdfIn PDF document text
    • https://cdn.sqhk.co/jemajujo/0ibOgBm/mibox_apk_installer_for_android_tv_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rabuvimi/swmje5f/free_pantera_music_radio_stations.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/daniwodug/c_est_il_est_exercices.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/4293268288.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/reredamusuta.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/nice_guidelines_for_diagnosing_asthma.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/72976102833.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_off0000d426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD426 5752 bytes
SHA-256: 89a8daadb28f482d85e8c3ce024cbe09bf8a5244a669613e247bc23884984883
font_01_sfnt_off0000e796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE796 10824 bytes
SHA-256: cbf16c121e02bcd315428a95882ecd904b26dec2f11c91c96ccd3c1d34a204c2

Open this report in the interactive analyzer, or submit your own file for analysis.