Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a339b9a1eac4326…

MALICIOUS

PDF

197.2 KB Created: 2021-03-03 17:44:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: aa728f4e642c3e6ce855cbc32f4f291a SHA-1: 1bd0a1f41649757010abb62fee795eeacc829dec SHA-256: 7a339b9a1eac432675d568d42a10c6da4d2a4780a34acad2ba118f3040839d3a
152 Risk Score

Malware Insights

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

The PDF contains embedded links to known malicious redirector infrastructure, specifically `https://crophysi.ru/award?keyword=motorola+apx+7000+manual`. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The document body, though heavily obfuscated, appears to contain metadata related to the file's creation, but no direct user-facing text was successfully extracted.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9768

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://crophysi.ru/award?keyword=motorola+apx+7000+manual In PDF document text
    • https://cdn.sqhk.co/nijusukelok/0jgZicW/93429873482.pdfIn PDF document text
    • http://lijamerogavex.iblogger.org/what_is_the_best_chest_strap_heart_rate_monitor.pdfIn PDF document text
    • https://vubumixot.weebly.com/uploads/1/3/4/7/134751696/zawik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366010/normal_5fc99a508ab2e.pdfIn PDF document text
    • https://sekikeke.weebly.com/uploads/1/3/4/7/134739811/e0142d4db39f.pdfIn PDF document text
    • https://cdn.sqhk.co/jadepibake/mxpfjcC/airtel_digital_tv_my_plan_219_channel_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446170/normal_6011c7ff904cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479942/normal_5fd64c4ced948.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387424/normal_60155b32a4d38.pdfIn PDF document text
    • https://cdn.sqhk.co/saligoliti/Wiaifgh/84519935757.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408324/normal_5fc78f8495592.pdfIn PDF document text
    • https://cdn.sqhk.co/budajawisore/gghhhha/euro_train_simulator_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382790/normal_5fda838018ac7.pdfIn PDF document text
    • https://kodavagimiwebod.weebly.com/uploads/1/3/5/3/135346487/numijatidavu-mametanowalu-riposox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wepaxilex.epizy.com/do_what_you_are_doing_piano_sheet_music.pdfIn PDF document text
    • http://tutivute.epizy.com/gasawiweleruserilotaleg.pdfIn PDF document text
    • http://gugakalorezo.epizy.com/77009021489.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00030468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30468 5084 bytes
SHA-256: 03339e8677d456e1a6799cf7765d992704a2c0223fc5fed1c6647ff71c114188

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