Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a753a6fb522d8e…

MALICIOUS

PDF

81.0 KB Created: 2021-02-25 16:10:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 3886456c21624df750ec2aa956469390 SHA-1: e3db57718f6b1c840ab2e0f93b19d4fdd0f023dc SHA-256: 47a753a6fb522d8e75974f3ccbed144ab2c54b5fac7811235fcf98a25fd4e9b7
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. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/award?keyword=lista+de+verbos+irregulares+en+frances+conjugados+en+todos+los+tiempos+pdf PDF link annotation
    • https://dadurafiwazozu.weebly.com/uploads/1/3/4/7/134768329/vifipura-banuvemutus-zikikire.pdfIn PDF document text
    • https://cdn.sqhk.co/fidumugovoz/nlXhd36/pasububoxuvalurukava.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/fogodununejiwakexovox.pdfIn PDF document text
    • https://cdn.sqhk.co/febowozefu/iha2oyq/14471352457.pdfIn PDF document text
    • https://murexaxinafol.weebly.com/uploads/1/3/4/4/134456221/zuwijusebakepex-fakes-lakivesiv.pdfIn PDF document text
    • http://jofufunobek.sportsontheweb.net/balancing_chemical_equations_practice_problems_with_answers.pdfIn PDF document text
    • https://sutesesa.weebly.com/uploads/1/3/4/8/134871168/rozadigajur-dorexegatiwus-gofekured.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/hiIPDuQ/lunudelaremotimetuwep.pdfIn PDF document text
    • https://koxawikala.weebly.com/uploads/1/3/4/6/134643159/5225434.pdfIn PDF document text
    • https://pavovebowejimop.weebly.com/uploads/1/3/1/6/131607108/18f4cf9b9b.pdfIn PDF document text
    • https://kufesivewafe.weebly.com/uploads/1/3/1/3/131384244/jetaruk.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/vososasoxumete/dispatch_note_template.pdfIn PDF document text
    • http://rebobimakefeli.epizy.com/zagofab.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/rimepadipejamolo.pdfIn PDF document text
    • http://sikofus.epizy.com/avast_antivirus_app_free_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/android_version_history_2019.pdfIn PDF document text
    • http://lidikulogape.rf.gd/puzzle_box_level_23_guide.pdfIn PDF document text
    • http://xupevovegizem.rf.gd/picsart_premium_apk_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/ramutizovofalamujego.pdfIn PDF document text
    • http://gojexigubobe.epizy.com/25086726969.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_off0000ee06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE06 3076 bytes
SHA-256: 846bad35580dabf0cde73bfda84bad59486174de6e3e97ba2eb656b75b670860
font_01_sfnt_off0000f8fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FA 5692 bytes
SHA-256: 14a75ea4d8aef1f5f4bf76859e1d30abc6a7121d11e2b43cb1d3347542fb1e36
font_02_sfnt_off00010c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C52 12056 bytes
SHA-256: c210a879de5a164eb2cb02cb763b5cb0995b0383065cbe9f4aac6432678fcd52