Malicious PDF — malware analysis report

Static analysis result for SHA-256 31028a0c02591290…

MALICIOUS

PDF

115.7 KB Created: 2021-03-18 13:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e18244288567fcb9b5c95f80a6f8243a SHA-1: d2141597c101b042219b9b0dee2736c229222ee8 SHA-256: 31028a0c0259129064095083816906889a8fbae5be0b6663df56ca9c42e0d47d
116 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. It uses a callback-phone (TOAD) lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ponafet.ru/wix?keyword=smart+card+directv PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4385436/normal_5feb4e156e8cf.pdfIn PDF document text
    • https://sowibize.weebly.com/uploads/1/3/5/3/135348762/bigonemo-nanegifezagegi-vuxufovov-jefawife.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_602232e991895.pdfIn PDF document text
    • https://mopuxemunokele.weebly.com/uploads/1/3/5/3/135318458/3414cf7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407991/normal_5fcea57a3233c.pdfIn PDF document text
    • http://kefowawud.22web.org/inequality_math_problems_and_answers.pdfIn PDF document text
    • https://sokijolixorinus.weebly.com/uploads/1/3/1/1/131163896/83c84.pdfIn PDF document text
    • http://sawotawigusewon.22web.org/5322461142.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387430/normal_5fdfbb27bd9dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470389/normal_5fcc401867831.pdfIn PDF document text
    • http://pepipejevu.iblogger.org/avett_brothers_morning_song_lyrics.pdfIn PDF document text
    • https://zigudufojivop.weebly.com/uploads/1/3/4/7/134718002/5539020.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/dudigonifu/87077422660.pdfIn PDF document text
    • http://rinonefor.rf.gd/malibu_low_voltage_landscape_lighting_instructions.pdfIn PDF document text
    • http://fesonukoropirum.rf.gd/wukuzoromufuzadukajerud.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/beyonce_song_love_drought.pdfIn PDF document text
    • http://wutivufugisev.epizy.com/the_answer_place_avis_budget.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001885c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1885C 5040 bytes
SHA-256: db39ba235fe964378e68d6f385b032f95a2a771e9934fc7a24d5556771239cb4
font_01_sfnt_off0001996a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1996A 12256 bytes
SHA-256: 1768b2d76847e8d42eb9eccd63af6372a9c40527a8fedf05161a2d2a2de02e62

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