Malicious PDF — malware analysis report

Static analysis result for SHA-256 7067568892fc7042…

MALICIOUS

PDF

70.4 KB Created: 2021-03-12 16:00:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: cc7aa6c8164f3577e5c845c3a48df030 SHA-1: 2109e1d8f4c1716afca6eb48a533a8c8546f1b43 SHA-256: 7067568892fc70424062e59af24ccc592243a50d1c3ad6c03a202e177f3faf73
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains and link farms, a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/123?utm_term=moving+away+card+template PDF link annotation
    • https://cdn.sqhk.co/gufadiviw/dTYJhY7/90531743697.pdfIn PDF document text
    • http://itawomen.fun/lowrance_elite-5_dsi_c_gps9rbv9.pdfIn PDF document text
    • https://zubikuzo.weebly.com/uploads/1/3/1/4/131453486/ff0bd4aa.pdfIn PDF document text
    • http://kivizam.22web.org/lefekavabuwaro.pdfIn PDF document text
    • http://tefitagesev.mypressonline.com/dovivixoxajakenuzitagala.pdfIn PDF document text
    • https://sazefowefojewen.weebly.com/uploads/1/3/4/8/134893887/wejizibavu-fazimemabefawo-kevaxujawisapu.pdfIn PDF document text
    • https://fafenerukore.weebly.com/uploads/1/3/1/3/131398145/f7f44.pdfIn PDF document text
    • https://xedutorapul.weebly.com/uploads/1/3/0/8/130813372/1303428.pdfIn PDF document text
    • https://cdn.sqhk.co/vujagefamig/7gwiejd/ben_10_mod_for_minecraft.pdfIn PDF document text
    • http://xazigewit.iblogger.org/putewoxevo.pdfIn PDF document text
    • http://jenerotisa.mywebcommunity.org/chuunibyou_demo_koi_ga_shitai_synopsis.pdfIn PDF document text
    • http://jotusuwes.iblogger.org/54474939445.pdfIn PDF document text
    • http://muvibigi.22web.org/98444951797.pdfIn PDF document text
    • http://ins.expert/strangers_on_a_train_movie_onlinewsl52.pdfIn PDF document text
    • https://jabevemejo.weebly.com/uploads/1/3/1/4/131483275/vopun_livigudefarenu_fabumubu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dewabop.rf.gd/dell_latitude_e6430_release_date.pdfIn PDF document text
    • http://xifebudi.epizy.com/29487241208.pdfIn PDF document text
    • http://nepunefetonub.epizy.com/76334453039.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_off0000d54c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54C 5472 bytes
SHA-256: 97e09a8863ec5f5086a93b4e4aed0c211e2e93f25cb6716a3f3f6673998e7c29
font_01_sfnt_off0000e801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE801 11580 bytes
SHA-256: e3f9b8c9e97de7678807a449cdaafdceb250e65581f337ab0dea81273ddb1a6b

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