Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec1e6a86012a6e5…

MALICIOUS

PDF

74.8 KB Created: 2021-03-28 14:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 3db8eb8074534d37163b65ca42200add SHA-1: 7da86de08e45d359dcc7857f140c35f2999d2377 SHA-256: 9ec1e6a86012a6e510f9fe393b2fc1e451df386a95f373aaa6e95b19e28304f7
196 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are part of a link farm, suggesting a phishing or SEO scam. The presence of a password-protected archive lure indicates an attempt to bypass gateway scanning. ClamAV detection and ML classification further support its malicious nature. The embedded URL 'https://midufefew.ru/wix?keyword=boxing+live+unblocked+6969' is likely the primary lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://midufefew.ru/wix?keyword=boxing+live+unblocked+6969 PDF link annotation
    • http://fesotisifofil.mygamesonline.org/plant_virology_textbook.pdfIn PDF document text
    • http://kewotij.mypressonline.com/lords_of_chaos_streaming.pdfIn PDF document text
    • http://pasipodo.mypressonline.com/nefufolabuvidomereva.pdfIn PDF document text
    • http://xiwesesakuvel.medianewsonline.com/35611288735.pdfIn PDF document text
    • http://kasaxeko.mypressonline.com/how_to_learn_boxing_at_home_wikihow.pdfIn PDF document text
    • http://kezijumedet.mypressonline.com/kusirijup.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/boduxatavepe/cataloguing_tools.pdfIn PDF document text
    • https://48cc712b-de5e-493e-a198-f8962849e22b.filesusr.com/ugd/d2751c_e9881cb40b614032ae195d1ea05c748e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/62fa6fcd-41bc-496b-9fc9-86102ee78ea1/57110166733.pdfIn PDF document text
    • http://tevefetilojas.atwebpages.com/pigiwewoxu.pdfIn PDF document text
    • https://651f5d5e-5f42-4fb0-8380-889764ca350f.filesusr.com/ugd/b2f7c1_6a1223f7bbde4354baea55c5da4e82b1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/58f6d42c-7edf-4053-8377-7b47ced477c8/tuvipanegikixake.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/dukuzebekukowo.pdfIn PDF document text
    • https://d8d691c7-cf48-432b-bece-a54604b57851.filesusr.com/ugd/1e3a4b_24a1b7c35ec8431a8c6acd2a9fed537e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d18cfcf-6239-4404-9eb6-4d266c95d588/lego_ninjago_movie_game_ps4_free.pdfIn PDF document text
    • https://171e2b11-24ea-4535-acac-f971ec821c4b.filesusr.com/ugd/a07927_a71a3eae85044adb81b84ad18b51a2ef.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/free_editable_cv_template_doc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86f1c650-72a3-44c2-ac0e-c5d5561fdcf2/rar_file_password_cracker_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/answer_al_plurale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c76e77e3-3566-4edd-b97b-690901c10a0f/audiolibros_la_biblia_latinoamericana_descargar_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/gosodezopumiruxabug.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/what_does_contention_mean_in_information_technology.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/mubodedodivubelaremuka.pdfIn PDF document text
    • https://712e085e-8422-4094-ae2e-709d430f1fc9.filesusr.com/ugd/bf8edb_490016d6a9d94254823cb2efa55ce85a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/popilo/30052040720.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/juruxiserasod.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_off0000e71e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71E 5316 bytes
SHA-256: 5e72ca89189cfe9e4f07db799d9fb52f62a28a958bca8cd6c22685b54219ef1c
font_01_sfnt_off0000f958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF958 10752 bytes
SHA-256: d06d941bd2df8fc9688c6c304586c260ce3d82fbcd3ee17a7ee4c76a1a753480