Malicious PDF — malware analysis report

Static analysis result for SHA-256 7206a9c3dce23ac0…

MALICIOUS

PDF

78.9 KB Created: 2021-03-23 12:17:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 14d44684208a5e02a3e5653ef678a9cd SHA-1: 937e0dfe315f1260a0bcd5be671d6d0e7e58217b SHA-256: 7206a9c3dce23ac0ef4bfdfd5d1fcaa62afd91d20bc807574242cbd2fbcfb196
126 Risk Score

Malware Insights

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

The PDF contains embedded URLs and heuristics indicate it functions as a link farm, directing users to potentially malicious sites. ClamAV detection and ML classification confirm its malicious nature, likely for phishing or malware distribution. The presence of PDF_SEO_DISPOSABLE_LINK_FARM suggests an attempt to disguise malicious links within seemingly legitimate document content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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 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://fokemale.ru/award?keyword=solve+quadratic+equations+by+quadratic+formula+worksheet+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4496607/normal_5fe560e634182.pdfIn PDF document text
    • http://bitiwiz.medianewsonline.com/acordes_canto_al_que_esta_sentado_en_el_trono.pdfIn PDF document text
    • http://moscow-siberian-force.online/what_does_black_boy_joy_meanmdrjv.pdfIn PDF document text
    • http://juwoniki.getenjoyment.net/senini.pdfIn PDF document text
    • http://xitodefigatefuj.medianewsonline.com/setole.pdfIn PDF document text
    • http://xufamorazogubov.sportsontheweb.net/34648650829.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479688/normal_600b4da82b183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378171/normal_604aa70210cc3.pdfIn PDF document text
    • http://thechambre.xyz/sony_rm-vlz620_roku_codevtkgq.pdfIn PDF document text
    • http://heretythere.site/61362447485r3v8z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446394/normal_600e504e721e7.pdfIn PDF document text
    • http://tadajixilatu.scienceontheweb.net/how_to_draw_101_cartoon_characters.pdfIn PDF document text
    • http://digovin.getenjoyment.net/piwelewuvamebosafexaso.pdfIn PDF document text
    • http://pikegupima.medianewsonline.com/jojujolanokuvobi.pdfIn PDF document text
    • http://rezanufeku.mygamesonline.org/vodiriguruvipigejapo.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/muvarelo/gebuguxumu.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/civil_wedding_ceremony_booklet_template.pdfIn PDF document text
    • http://lazuletezofik.onlinewebshop.net/before_the_flood_movie_discussion_worksheet_answers_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0023fc7-f131-4f07-989d-2206123ec608/how_to_write_an_opinion_paragraph.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/compass_card_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/lidenozuwinirakepexexixus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03987a46-2065-46dd-ba87-88bc2d87ce92/how_to_train_your_dragon_book_of_dragons_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/29830889978.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_off0000f4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DE 6084 bytes
SHA-256: 995583a6e58a9acbb96102d485145a31fcc822ec64890cdf3f82b0d8349f0805
font_01_sfnt_off00010981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10981 10556 bytes
SHA-256: 446ff1a5f90a0c263c3b5671c7f8f00c4508d8a17579af9ad736fa0983bd5630

Open this report in the interactive analyzer, or submit your own file for analysis.