Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd57ef0396319b2…

MALICIOUS

PDF

82.9 KB Created: 2021-03-20 23:12:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de72dda296fdd92fe71626964dfa7973 SHA-1: 367dfba73c3429d15cef8a7c701174790766c6c1 SHA-256: ccd57ef0396319b24edc33fe37daa039a80847d5e54ca4ef97e9808eec01bba9
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with the primary one being `https://dugedepap.ru/aws?utm_term=the+unbearable+lightness+of+being+%25281988%2529+ok.ru`, suggesting a phishing or credential harvesting attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a common phishing lure, likely delivered via spearphishing attachment.

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://dugedepap.ru/aws?utm_term=the+unbearable+lightness+of+being+%25281988%2529+ok.ru
    • http://pojekofa.iblogger.org/manualidades_con_reciclado_de_navidad.pdf
    • https://cdn.sqhk.co/voduzetefir/jdifygj/rosit.pdf
    • https://static.s123-cdn-static.com/uploads/4453741/normal_5fff128b601d9.pdf
    • http://judijemavup.22web.org/how_to_replace_xfinity_remote_batteries.pdf
    • https://cdn-cms.f-static.net/uploads/4470972/normal_6018ee1beede4.pdf
    • https://cdn-cms.f-static.net/uploads/4368971/normal_60339ad6e3c59.pdf
    • http://puduvab.sportsontheweb.net/differences_between_business_administration_and_business_management.pdf
    • http://wazepewazivulil.mywebcommunity.org/autocad_civil_3d_2017_software_price.pdf
    • https://cdn-cms.f-static.net/uploads/4496826/normal_601b40eacd2be.pdf
    • https://cdn-cms.f-static.net/uploads/4449405/normal_6046e47333e0e.pdf
    • https://cdn.sqhk.co/zolilobup/jdhhhaP/84191723339.pdf
    • https://cdn-cms.f-static.net/uploads/4407733/normal_6053ca6576a0a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fefisapuvekebi.epizy.com/xewusaxuzepuzet.pdf
    • http://retinizani.epizy.com/48416258132.pdf
    • http://durunorutap.epizy.com/nuferapufoz.pdf
    • http://pipegaxo.epizy.com/how_to_install_m-audio_keystation_49e.pdf
    • http://xepazap.epizy.com/25917748004.pdf
    • http://xonukekavufimil.epizy.com/36208807153.pdf
    • http://pogugule.epizy.com/does_ash_have_a_crush_on_lillie.pdf
    • http://sawujasasit.epizy.com/guilty_crown_parents_guide.pdf
    • http://xakagigoneliv.myartsonline.com/2017_ford_mustang_ecoboost_reviews.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec60.bin
841c06a170b834fa36366a602e8fdf19f9ea7763f0ebfcbe6c8fdd67991b1de9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC60 5652 bytes
font_01_sfnt_off0000ff97.bin
9401d56eb0a3f61228b05898cf9d9ed537754ddf97d6e5d188b6004479c24d28		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF97 16200 bytes
font_02_sfnt_off00012faa.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FAA 4324 bytes

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