Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddc5d46c67c65072…

MALICIOUS

PDF

73.9 KB Created: 2021-03-17 03:50:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c70f6be2c7a317cbd522eab13f4db818 SHA-1: d0dc016eb9aa72a335dd066d8ea3a21784666a6f SHA-256: ddc5d46c67c65072bf18bbdd789c13b9f79ecbdf6056f5ebf4d4f3f4317befbf
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a malicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ClamAV detection and ML classifier further confirm its malicious nature. The document body, though heavily obfuscated, appears to be a lure related to video game cheat codes, aiming to trick users into visiting the provided URL.

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://dafemum.ru/wix?keyword=sniper+assassin+4+cheat+codes
    • https://nosobafib.weebly.com/uploads/1/3/1/4/131438228/kemukid.pdf
    • http://pozuliruz.iblogger.org/85394978158.pdf
    • https://cdn.sqhk.co/xalesikozip/ejjme7l/97211707427.pdf
    • https://cdn.sqhk.co/tikisudolo/3hhWjg7/tawoniwe.pdf
    • http://tefuvawilutir.mypressonline.com/aristoteles_organon_espaol.pdf
    • http://piriketag.22web.org/civil_rights_training_quiz_answers_texas.pdf
    • https://static.s123-cdn-static.com/uploads/4482849/normal_60009c7972af0.pdf
    • https://cdn.sqhk.co/lotazoza/ROuKjAS/bimikefoxobotinexopulu.pdf
    • http://fusekimutoxi.sportsontheweb.net/spiritual_meaning_of_802.pdf
    • https://cdn-cms.f-static.net/uploads/4480594/normal_6020724453165.pdf
    • http://mukinokelek.mygamesonline.org/tavabomusiludokinokulefup.pdf
    • http://jijoxep.getenjoyment.net/soxoju.pdf
    • http://pilawufatazuka.iblogger.org/kozipitaduwuge.pdf
    • https://cdn.sqhk.co/rufomezin/f62ibje/gotijojurakunujesir.pdf
    • https://static.s123-cdn-static.com/uploads/4478946/normal_5ff66e8ced222.pdf
    • https://pesawesezopi.weebly.com/uploads/1/3/4/3/134327800/c52401.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fewuzefar.rf.gd/reasoning_deductive_and_inductive.pdf
    • http://sazojojuw.rf.gd/news_ticker_after_effects_template_free.pdf
    • http://radujexoxetapil.epizy.com/what_does_the_term_warm_fuzzy_mean.pdf
    • http://xekoduxunadisum.rf.gd/61087779572.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3b7.bin
935912eab584c1d09a8ee2ade04caebf956aa85a19a35b1ea328202f6c168c86
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B7 5320 bytes
font_01_sfnt_off0000f5ca.bin
70983707c8bd2aa50dba710dbe867415a3a0114524206e981927baa6012a2159
pdf-font-stream PDF embedded font (sfnt) at offset 0xF5CA 11108 bytes