Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e7bbde8e33e72dd…

MALICIOUS

PDF

95.7 KB Created: 2020-12-26 23:47:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 5679eab3d72454ad1febfee3f7f0fafa SHA-1: bcb44c589897205f2417ce5ff3649ce005076716 SHA-256: 0e7bbde8e33e72ddba82660ddae8d9ba9186b2b498945de77eb6dcef1bbdf2cf
164 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a phishing document with a link farm, and the ML classifier strongly flags it as malicious. The document body, though heavily obfuscated, contains text suggesting urgency. The presence of external URIs, particularly those leading to Weebly and other file-hosting services, suggests a pattern of hosting malicious content or redirecting to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://trafficel.ru/123?utm_term=does+plan+b+really+work+yahoo+answers PDF link annotation
    • https://rujuzodojavumip.weebly.com/uploads/1/3/4/7/134726220/gonedofesapif_dibuvelor_nugedeba.pdfIn PDF document text
    • https://cdn.sqhk.co/pimibopugugo/ia0DjbR/buwowimafuvuxuxumo.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/hgDiaz5/best_free_friend_finder_app.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/sjisfhh/online_grocery_shopping_statistics_uk_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/jumifokujuje/jiWGggX/mobile_phone_ringtone_english_music.pdfIn PDF document text
    • https://cdn.sqhk.co/weteroliwo/Dyjc0sW/army_prt_admit_card_2020.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/bisute/resnick_and_halliday_the_fundamentals_of_physics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f689798-35e4-4a97-813b-57eb07ddfb9e/redstone_heater_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/vehicle_information_uk_charges.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/administrative_office_management_quible.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/37211548694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3a1b2c1-a3bc-4145-9465-c7e74f33b7cd/what_are_your_parents_cousins_to_you.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/aliens_in_the_attic_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/chamma_chamma_4k_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/2015_chevy_trax_user_manual.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001163d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1163D 5304 bytes
SHA-256: 9bba399ba2ca68ad5142d91013733bf479a036e4c084ccd4d266d2838d5918b7
font_01_sfnt_off0001285b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1285B 16848 bytes
SHA-256: e074073e47ef17a345570a1f4806806427bf2ed53c3c8314475f6e1b593da011
font_02_sfnt_off00015c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C58 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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