Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da6c37e9981ed57…

MALICIOUS

PDF

126.9 KB Created: 2021-02-25 06:55:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b01ae312965c010f9fc3a4b4c0f6bd22 SHA-1: c1963d6864a6f80bea085b8131b0f8113b51b321 SHA-256: 1da6c37e9981ed57d75452c89f2af1dc204b011848ae053566cc458f4e266daf
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous embedded links, many pointing to disposable domains, suggesting a link farm or phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially garbled, suggests a lure related to relationship advice, which is a common tactic for phishing or scam operations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7870

Heuristics 4

  • 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
  • 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://druttle.ru/award?keyword=how+to+make+your+boyfriend+a+gentleman PDF link annotation
    • http://tupaxeguna.scienceontheweb.net/67329811784.pdfIn PDF document text
    • https://seguvixezamab.weebly.com/uploads/1/3/5/9/135961197/60c66dd1f5.pdfIn PDF document text
    • http://daduriwikoniza.22web.org/how_to_reset_a_kenmore_he2_washer.pdfIn PDF document text
    • https://suterigegopos.weebly.com/uploads/1/3/2/6/132695321/lisov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451954/normal_6005c05d94b8d.pdfIn PDF document text
    • https://gunagejosiva.weebly.com/uploads/1/3/0/7/130738835/sikawotu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501501/normal_602170c1ba18c.pdfIn PDF document text
    • https://befomunuduti.weebly.com/uploads/1/3/1/1/131164266/9531143.pdfIn PDF document text
    • http://bavedibigilomit.66ghz.com/65291286981.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://depegiwisa.epizy.com/27285286370.pdfIn PDF document text
    • http://wotixoweg.rf.gd/canvas_cv_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/gijedizivigoradubulowazev.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/nimazuj.pdfIn PDF document text
    • http://dufeniwa.rf.gd/93186016280.pdfIn PDF document text
    • http://vobewegogiz.rf.gd/23125691668.pdfIn PDF document text
    • http://jewobadal.epizy.com/goberog.pdfIn PDF document text
    • http://surafupomef.epizy.com/website_als_speichern_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/oxford_english_dictionary_offline.pdfIn PDF document text
    • http://nabenejajoko.myartsonline.com/tetesodosogatavifikeru.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/roomba_980_battery_specs.pdfIn PDF document text
    • http://futifuzofu.rf.gd/jorge_luis_borges_books.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001bf80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BF80 5408 bytes
SHA-256: 08caad23a9d1a9513693b301886624b3c1ef410488d21cee57638c115a377909
font_01_sfnt_off0001d1e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D1E8 10492 bytes
SHA-256: 21f5d5b73d6a74d6344a0e098ffb575f35109d6dc3b42580573ef763eb27d4dd

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