Malicious PDF — malware analysis report

Static analysis result for SHA-256 002cbc0f1a552bf2…

MALICIOUS

PDF

81.9 KB Created: 2021-03-18 03:18:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 783800d6c2ef7cdf61b9ec0994629f14 SHA-1: 115eb0ff858dbfb3946d2916b37194a7f46600b1 SHA-256: 002cbc0f1a552bf29e26031c468a1dadbe9cd664708d1d645c4abd2e5a1a4c75
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lozipotod.ru/wix?keyword=the+hobbit+kingdoms+of+middle+earth+game PDF link annotation
    • http://wide-mean.top/93209582244ypsj2.pdfIn PDF document text
    • https://pisusafinado.weebly.com/uploads/1/3/4/3/134363103/aed361c7c5.pdfIn PDF document text
    • http://flowerport.shop/28285836082yc9yb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443802/normal_5fe12899a64d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379387/normal_5ff77fb34aece.pdfIn PDF document text
    • http://menugejonara.22web.org/67457776584.pdfIn PDF document text
    • https://ninegepidilu.weebly.com/uploads/1/3/0/7/130738727/ebbaa73f5cfc3.pdfIn PDF document text
    • http://jologedeb.getenjoyment.net/bissell_proheat_2x_revolution_pet_pro_owners_manual.pdfIn PDF document text
    • https://kogozodibivuf.weebly.com/uploads/1/3/6/0/136094397/2662135.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/war_horse_breeds_in_indiagifvk.pdfIn PDF document text
    • https://dulewidojupetor.weebly.com/uploads/1/3/2/6/132695372/5600234.pdfIn PDF document text
    • https://dawifebenunu.weebly.com/uploads/1/3/4/3/134374742/1b167f43e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375344/normal_600d5e3a2f9d2.pdfIn PDF document text
    • http://shoppingyxplus.xyz/bootloader_status_apk8eg02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370528/normal_600cc5579a0dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482870/normal_5ff2b2e59f604.pdfIn PDF document text
    • http://zokiwedilar.mypressonline.com/94219128321.pdfIn PDF document text
    • http://leyloften.online/can_canon_eos_rebel_xti_shoot_videokt5hz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jolavewavesuj.epizy.com/immanuel_kant_philosophy_about_self_quora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d0a6106-0e69-4843-a4dc-f847e21f5c0f/zediderumubuxusawibowarox.pdfIn PDF document text
    • http://fadezanunadafik.myartsonline.com/jojagezubuxijobomibumufo.pdfIn PDF document text
    • http://mofibukuzoke.rf.gd/85791328626.pdfIn PDF document text
    • http://zulegaxevo.epizy.com/earthquake_after_effects_template.pdfIn PDF document text
    • http://ritumogadoj.onlinewebshop.net/mexico_customs_declaration_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/229230ad-72ce-42d3-995e-42a2e638d373/45777308112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/644ba177-9acc-4e29-969f-a19853e093aa/22862549932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e588b52b-bc8d-40c7-8ebe-dde4ae891568/envision_math_textbook_grade_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64ffe142-990f-4dcc-a9ca-e09d7d5957c0/daily_language_review_grade_4.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_off0000feab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEAB 5472 bytes
SHA-256: fcf3daac9c460c8aa1cd195b7badd520010aa7698befe06ae167a85b25fc9e59
font_01_sfnt_off0001111d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1111D 11908 bytes
SHA-256: 8e547ff3321633e5be62c83fd7b566b619f0ed2d443636eb10210e9bf3df7a33