Malicious PDF — malware analysis report

Static analysis result for SHA-256 0212a6e9bca71803…

MALICIOUS

PDF

76.0 KB Created: 2021-05-09 23:44:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 55264e030c4c11cfc60a79fd443c0422 SHA-1: 7dfb2dc8d7963f55a767ae4f4e72fc9a7d778e33 SHA-256: 0212a6e9bca718037330f6b905dd4c8a0981eb9a5ea3cd56a365491cc88d8ada
126 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links, many pointing to disposable hosting, suggesting a link farm used for distributing malicious content. The document body, though heavily obfuscated, appears to be a lure related to weight loss, likely to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://static.s123-cdn-static.com/uploads/4480891/normal_5fec795668e6b.pdf In PDF document text
    • http://nusowutevu.getenjoyment.net/tuzusitimuje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469831/normal_606947316363f.pdfIn PDF document text
    • http://jerimujolegem.medianewsonline.com/pilazotigor.pdfIn PDF document text
    • http://lifeshop.pro/86480686491d25bn.pdfIn PDF document text
    • http://reduslim-official.website/ma_bohme_arthur_rimbaud_analyse_linaireunz23.pdfIn PDF document text
    • http://lamanixumerad.mypressonline.com/dracula_oxford_bookworms_download.pdfIn PDF document text
    • http://net-klientov.ru/48707084438i36gm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494147/normal_603ee68a8fbdf.pdfIn PDF document text
    • http://citrus-fruit.space/how_to_connect_printer_to_wifi_hp_deskjet_363069rlj.pdfIn PDF document text
    • http://magazinrf.xyz/conversation_casanova_mastery_cory_smith_free_downloaddqox5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/o_fyKxYoRT8/wb?keyword=indian%20diet%20chart%20for%20weight%20loss%20for%20female%20pdfPDF link annotation
    • https://s3.amazonaws.com/lovomijelun/letter_d_cursive_handwriting_worksheets.pdfIn PDF document text
    • http://dulanorelowekat.epizy.com/the_lion_and_the_mouse_by_aesop_theme.pdfIn PDF document text
    • http://bijokosi.rf.gd/114_chakras_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab9c63ed-5062-45c7-b9a8-b0fc5745ed58/calcular_normalidad_de_una_disolucion.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/homedics_cool_mist_ultrasonic_humidifier_troubleshooting.pdfIn PDF document text
    • http://pevogikuxupeja.onlinewebshop.net/javulom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b849c651-667e-4d65-8d15-02b39798c963/balasuvapevilivivoze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3883d9ae-6476-4b72-9aa3-17b886ff23d1/483257187.pdfIn PDF document text
    • http://norisufa.epizy.com/newik.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/tikavivomalowurematosesa.pdfIn PDF document text
    • https://s3.amazonaws.com/nafamaragisek/tefiz.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_off0000e8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FB 5600 bytes
SHA-256: 1469231ceb093c10393c4215901a24dba9b7429ef6e26ca4afbe01e3c39ca869
font_01_sfnt_off0000fbf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF1 11056 bytes
SHA-256: dd1584bd90f011b9b6274eabfd98b39e912918e616bbd20536dccd7c3ee3e33b

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