Malicious PDF — malware analysis report

Static analysis result for SHA-256 bab2d809110701e4…

MALICIOUS

PDF

58.2 KB Created: 2021-02-16 13:40:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 7b5963c3fae4751875c31d7399fde03c SHA-1: 9f199df5f6d66a9a61d72e826156f68cdce0064f SHA-256: bab2d809110701e4868c6be844d41209ca218aee3018e161be0ac3f70e28170a
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to disposable hosting services, indicating a link farm designed for SEO manipulation or phishing. One critical heuristic identified a link to known malicious redirector infrastructure. While no scripts were extracted, the PDF structure and link farm behavior strongly suggest a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7196

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/strik?utm_term=marketing+management+by+philip+kotler+latest+edition+ebook In PDF document text
    • https://vamekatowozi.weebly.com/uploads/1/3/0/8/130814347/88bd36aea.pdfIn PDF document text
    • https://rivixajonezil.weebly.com/uploads/1/3/1/4/131437445/e16b82.pdfIn PDF document text
    • https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/netadixi.pdfIn PDF document text
    • https://tezefidusipenu.weebly.com/uploads/1/3/1/8/131857758/9e0c45f32d03.pdfIn PDF document text
    • https://bojomuse.weebly.com/uploads/1/3/4/4/134462584/buwawulileziru.pdfIn PDF document text
    • https://ridolagu.weebly.com/uploads/1/3/0/7/130775195/7200791.pdfIn PDF document text
    • https://vogoniboka.weebly.com/uploads/1/3/1/0/131070279/fojofixalasamadipo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403404/normal_601a88bb924f2.pdfIn PDF document text
    • https://nukarefu.weebly.com/uploads/1/3/4/1/134131348/latixunolaxe_gatexef_xevaranuruvitik_jupotavibit.pdfIn PDF document text
    • https://wopurosifagup.weebly.com/uploads/1/3/5/3/135333772/1293248.pdfIn PDF document text
    • https://sogatetemurus.weebly.com/uploads/1/3/4/3/134379625/1de603.pdfIn PDF document text
    • https://pigukoziluluz.weebly.com/uploads/1/3/4/8/134896600/taranowewazaxolu.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/athlean_x_workout_plan_free.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/cord_cutters_guide_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/manan.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/46106927451.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/carbonic_acid_formation_from_co2.pdfIn PDF document text