Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf0e49ea22500cb7…

MALICIOUS

PDF

78.3 KB Created: 2021-03-18 14:23:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be604a4aaf1ca7df23ba8c8c6906f566 SHA-1: a89e7206d202a6847782551ffb0d72543adc8604 SHA-256: cf0e49ea22500cb788759b736cf90788e2a20acc846286194ef6d34af0310837
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a URL that appears to be a lure for potentially malicious content. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, contains text related to watching a movie online, suggesting a social engineering pretext to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/wix?keyword=watch+star+wars+the+force+awakens+full+movie+online+free+streaming
    • http://ruxedetijonenik.iblogger.org/ragedipifexumikufog.pdf
    • https://bavifevip.weebly.com/uploads/1/3/6/0/136049805/xeneb.pdf
    • https://visegonikagade.weebly.com/uploads/1/3/4/6/134626066/8c3ec6.pdf
    • https://cdn.sqhk.co/tomubozes/jc71Ii9/history_of_machine_learning_wikipedia.pdf
    • https://cdn.sqhk.co/winogolelog/aIycuV4/idle_gun_tycoon_mod_apk_download.pdf
    • https://cdn.sqhk.co/pazibafax/wmhaiia/ketewenizitivaz.pdf
    • https://cdn.sqhk.co/xenivoronizu/fb04ghN/vasuvipavikuleti.pdf
    • https://remogomati.weebly.com/uploads/1/3/4/7/134748537/5960997.pdf
    • https://cdn.sqhk.co/goxupolofodi/hhle3he/venmo_account_login_help.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pepawelifebin.rf.gd/gutagiwazuzigupexofo.pdf
    • http://zalaxorenisev.epizy.com/65192826326.pdf
    • http://retitizuwelis.epizy.com/24594627294.pdf
    • http://kiduvunizujenav.rf.gd/sematirosekumilo.pdf
    • https://48bf584d-d56c-45cf-b4f3-c1c05dce5274.filesusr.com/ugd/3f4b99_c18b1853c37b4080ac87d08fab5c99a8.pdf?index=true
    • http://bexinoj.epizy.com/kagozupeja.pdf
    • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_e286b0db153046f38635ffa5b8767f63.pdf?index=true
    • http://xolemobubusosi.rf.gd/addis_ababa_city_administration_housing_agency_condominium_winners_list.pdf
    • http://mubidixosi.epizy.com/2015_mustang_gt_auto_or_manual.pdf
    • http://gasigigi.rf.gd/international_lawyer_jobs_europe.pdf
    • http://guvubaxi.epizy.com/popimopezogaxivawejat.pdf
    • http://begulazelukej.rf.gd/xinaperewitufajikax.pdf
    • https://144ece88-722e-4d59-a9d1-ae16887514c2.filesusr.com/ugd/48b17f_45544e27c1d44ddab335ba642a65b36e.pdf?index=true
    • 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_off0000f277.bin
50f86b96dae9e2985e3e9cc78bcd32a1966edbee4879ac930d86e93b408c560a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF277 5524 bytes
font_01_sfnt_off00010539.bin
0e0b7d269e27dbea1e4709fe3eb54b0c1c7300631b03010a8f9e0e868447cfcd
pdf-font-stream PDF embedded font (sfnt) at offset 0x10539 11088 bytes