Malicious PDF — malware analysis report

Static analysis result for SHA-256 223e728be6940cb2…

MALICIOUS

PDF

79.4 KB Created: 2021-03-27 15:20:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2729937b7dbcba915550ced0b7a0357 SHA-1: 2406f93aba73c657a0fd4403687cc26fb0ee48b0 SHA-256: 223e728be6940cb203455d6a5806c78f10135f1e1b2a4780be38ceaefc21db54
196 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of an advance-fee scam, luring the user with promises of prizes or funds and requiring parcel delivery. It contains a large number of external links, many of which are likely part of a link farm designed to improve SEO for malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it is designed to redirect users to malicious websites, potentially for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://soxebez.ru/award?keyword=small+cattle+feed+plant+cost+pdf
    • http://soldonlittleton.com/mapleroyals_training_guide_assassiniz610.pdf
    • http://poopo.ru/tararimeropaxojikukeranmnq4j.pdf
    • https://cdn.sqhk.co/feluxolid/xGKPHhf/kung_fu_tea_set_travel.pdf
    • http://smeshnoykir.space/visomovulowunuwirjqelp.pdf
    • https://cdn.sqhk.co/libavesonon/idThaii/79616338692.pdf
    • https://cdn.sqhk.co/lajoroteb/Q9idnji/autotrader_okc_suv.pdf
    • http://bivodotofa.iblogger.org/iphone_5s_icloud_bypass_tool_free.pdf
    • https://cdn.sqhk.co/sodelaranu/iiBghEf/best_rechargeable_aa_batteries_for_trail_camera.pdf
    • http://pelaberofusej.iblogger.org/zimowige.pdf
    • http://auth02mobility.com/how_to_find_exact_trig_values_in_radianskso4d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/06bdb609-598e-4eda-b176-b8bdb9cf7298/the_screwtape_letters_1942.pdf
    • http://sededuvox.rf.gd/west_bengal_state_lottery_result_today_bangalakshmi.pdf
    • https://4ceac43d-3374-4736-8926-b47930641487.filesusr.com/ugd/3b1191_4a37deadfe364bfdbf7a2edcfb9b9e89.pdf?index=true
    • https://feedbc21-cb93-402c-9ae2-3476589645d2.filesusr.com/ugd/f3ecbe_be6e12fe20bd4be48c40e99cb4d1bd40.pdf?index=true
    • https://cb8582fb-ab29-4f13-bfd4-623ca244ab52.filesusr.com/ugd/d61b30_81e723686270489bb99531edce1f1968.pdf?index=true
    • https://6cdb29d4-22ce-4aaf-9e51-562b59d50851.filesusr.com/ugd/1b20fb_59aeff5e3ac840a2b574a7f51b94cf75.pdf?index=true
    • https://uploads.strikinglycdn.com/files/70f54df4-b87e-4bf8-b8bb-3b23533419a8/ladawokopizimotajinometi.pdf
    • https://uploads.strikinglycdn.com/files/7fd4e5c3-b737-4998-b21d-2c6097941db4/12466492021.pdf
    • http://jilufadipubo.epizy.com/importance_of_energy_in_our_daily_life_as_a_student.pdf
    • https://uploads.strikinglycdn.com/files/48116975-a0c7-401f-945c-9899f8484203/how_do_i_get_trade_options_on_robinhood.pdf
    • https://uploads.strikinglycdn.com/files/5c89e571-645d-419b-808f-d15450015191/worowetifofazimarukasina.pdf
    • https://5c126656-fc4f-473b-8c99-11744d2e1b96.filesusr.com/ugd/abd8ec_cdc676ae9218422a9747bc7213d293d7.pdf?index=true
    • https://uploads.strikinglycdn.com/files/07a01d67-2718-46f4-87ce-3c1efc39f380/fijope.pdf
    • https://uploads.strikinglycdn.com/files/055905c3-7729-4554-a88e-ab46907fce95/lonobulavijoroguxejob.pdf
    • https://uploads.strikinglycdn.com/files/e38d0e3f-e6fe-487a-9f92-eb93f0c65ab4/basic_symbols_used_in_technical_drawing_ppt.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_off0000f80a.bin
067725907f4facf63d650486fb9bbe3eb9b084ce8ee2276c6f49594afbb90031		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF80A 5308 bytes
font_01_sfnt_off00010a08.bin
a4ee7b844b8331479ab6f5e150c7c47f3f7b72407125cde36dd9d6c775d38561		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A08 11080 bytes

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