Malicious PDF — malware analysis report

Static analysis result for SHA-256 17447ec9815a7328…

MALICIOUS

PDF

78.7 KB Created: 2021-03-28 07:38:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 3bf07b53dffc7273a6876d22085f1bfb SHA-1: dc2086e4e5ac7a973deda1d5b7dabaed7fceb8e3 SHA-256: 17447ec9815a73288bd9b2e9c79e9fa859c7d189055f49f63cbec66d07a6b006
206 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm and callback phishing lure. It contains numerous external links, with a primary URL pointing to 'https://xezojetit.ru/wix?keyword=sussex+nj+food+pantry', suggesting an attempt to direct users to potentially malicious content or phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://xezojetit.ru/wix?keyword=sussex+nj+food+pantry PDF link annotation
    • https://muwozijazi.weebly.com/uploads/1/3/4/7/134736858/5443552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383797/normal_60201949070f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416512/normal_60463ab9cb319.pdfIn PDF document text
    • https://vezefujofebiv.weebly.com/uploads/1/3/5/3/135304234/3831293.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/duUghjg/64855380198.pdfIn PDF document text
    • https://faraxebeg.weebly.com/uploads/1/3/4/4/134475962/vozidabopedikas_zafarubel_dosepazor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448126/normal_6035caf769c46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410954/normal_601b4d3e3aeef.pdfIn PDF document text
    • https://cdn.sqhk.co/talurelope/aijYgcs/to_do_list_movie_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422890/normal_60088a52a4906.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/78ca873b-9bb3-489a-a9b3-c18b20c472a0/latugigat.pdfIn PDF document text
    • https://c78267de-509c-4cb0-9394-6b21b7876e04.filesusr.com/ugd/290ce3_a68751c7838d406fb385dabaff9af51c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/56ef25ff-1f3d-40ed-8beb-5c147cd791fb/how_much_does_the_sole_e25_elliptical_weigh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c2cbd2f-5c00-455a-a01b-b62bb2fcbeaa/george_di_giovanni_science_of_logic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7539938a-a9e4-455a-b784-26813f945117/the_boy_in_the_striped_pajamas_full_movie_free_online_with_english_subtitles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/084e9048-3b0f-4c0a-808e-edbb20236ad6/zigifomewevewodowu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3cbe253-ae41-4709-a9f4-bcafeef388d3/estructura_de_un_plan_de_negocios_ejemplo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4585dfcb-665b-4ce9-8ba4-8667273a5523/pavirodefidir.pdfIn PDF document text
    • https://06ebba1c-c738-45d4-b58d-83edbdcc9420.filesusr.com/ugd/b14caa_bbd44ed121dc44d1809dfcc350847383.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/17a5429a-6af1-4835-8f0a-d50005b2baea/27638951580.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_off0000f560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF560 5352 bytes
SHA-256: 55566812e9069dfc69de660130f33db614069096d8b686fe47b5c902769968a6
font_01_sfnt_off000107b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107B8 11072 bytes
SHA-256: 1a5919635dca2c0176d622403f202a0e2455884b71210be2483ef4c05dbc040f