Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8691f8f35bede3a…

MALICIOUS

PDF

77.6 KB Created: 2021-03-17 16:10:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8e91955306c426af7f40534a15057009 SHA-1: efe04bf1d4d7dfa7eef07b7e78a38c6c906d5ab9 SHA-256: e8691f8f35bede3abd84437e0bf1ebb70f7637b846d78ceb41d70c150af57226
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF that contains an embedded URL disguised as a search result. The URL `https://jumiwimov.ru/wix?keyword=the+prince+of+los+cocuyos+pdf` is likely intended to lead the user to a phishing or malware download page. ClamAV and ML classifiers strongly indicate maliciousness, aligning with a phishing or trojan delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://jumiwimov.ru/wix?keyword=the+prince+of+los+cocuyos+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455883/normal_5fdad12125b09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402289/normal_604426c9817e9.pdfIn PDF document text
    • https://cdn.sqhk.co/vemosoveveb/ihibpIT/54006561621.pdfIn PDF document text
    • http://rululidevasuv.22web.org/35009495540.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/Togf9vJ/checklist_for_moving_into_a_new_house.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/c2Djbge/egg_finder_apk_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/rolekixawute/Dihhehj/getepuwovitogeninarobeviv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382209/normal_5fd79988b154b.pdfIn PDF document text
    • http://fesebenawasoz.iblogger.org/how_to_use_a_knife_combat.pdfIn PDF document text
    • https://cdn.sqhk.co/nugizape/TugeBk6/86512212585.pdfIn PDF document text
    • https://cdn.sqhk.co/bitowiso/Vehbqjd/sunny_patch_ladybug_flashlight.pdfIn PDF document text
    • https://cdn.sqhk.co/tinukomafiro/iPjfwqw/gapojitesotimi.pdfIn PDF document text
    • https://cdn.sqhk.co/rifarako/Ahigj81/air_soccer_fever_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/gepabafi/eJK0Zif/45563035797.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/jjbijie/lunokasutokimemoxajun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469355/normal_6043ee646de77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456712/normal_5fd65fdcd1ebe.pdfIn PDF document text
    • http://sazijanisa.22web.org/84874485470.pdfIn PDF document text
    • https://cdn.sqhk.co/kapokosop/EdqhgK1/axis_360_ebook_kindle.pdfIn PDF document text
    • https://cdn.sqhk.co/dojidavos/ibjfhf9/6018373123.pdfIn PDF document text
    • https://cdn.sqhk.co/tevosudav/e9gfIE8/police_motor_city_driving_training_school.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/nedijowewoded/driving_test_nj_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/where_she_went_book_wiki.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/horde_classic_wow_cooking_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/android_9_htc_u11_release_date.pdfIn PDF document text
    • http://vowurereluvox.epizy.com/49063367832.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DC 5084 bytes
SHA-256: 7f16eb18a3b7325982aa63c6b19187fcc8575bc271600948359b6383a6c72dda
font_01_sfnt_off00010432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10432 11060 bytes
SHA-256: 4cfbe48f4eb933e4936a132345306c0b9274189e3809b0c7a446a6754c7cc5a1

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