Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e1af69001d73d80…

MALICIOUS

PDF

58.4 KB Created: 2021-01-02 13:53:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 53023388c3f5a78172042c198da36188 SHA-1: 71470b4218f93a32015b9eb2125803ca760d1bca SHA-256: 6e1af69001d73d809be0b71544a7ad1519b9858a1a5bee71724a5ec811f967fa
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is classified as malicious, exhibiting characteristics of a phishing trojan. It contains a large number of embedded links, with at least two identified as redirectors to potentially malicious infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to distributing further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8253

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
  • 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://traffking.ru/aws?utm_term=habibie+ainun+full+movie+ganool In PDF document text
    • https://xipidutaz.weebly.com/uploads/1/3/4/4/134401361/5685781.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390996/normal_5f9574bb10aa3.pdfIn PDF document text
    • https://cdn.sqhk.co/bawevabob/cr4gflW/46332601816.pdfIn PDF document text
    • https://liletizotefos.weebly.com/uploads/1/3/4/2/134234842/gikudabadumadak-likopudaw-dumenakotem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480891/normal_5fad6dc27a983.pdfIn PDF document text
    • https://purusoze.weebly.com/uploads/1/3/4/4/134495244/1258177.pdfIn PDF document text
    • https://tagufonatudivar.weebly.com/uploads/1/3/4/6/134609106/47f3e8.pdfIn PDF document text
    • https://fofupapezu.weebly.com/uploads/1/3/4/3/134356394/valif.pdfIn PDF document text
    • https://fosevagepuvuro.weebly.com/uploads/1/3/1/8/131858592/bebomuzoxor_dedagefuzadul_rurizesetar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0c33ae2-0160-4c06-9758-fd4e9d3d8546/nopopavuvogu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28cd8a3c-b404-4c3e-b406-d166dca92d86/90986153455.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc95f84d-1a49-4167-a31e-4411faae1f91/juraga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40acb4df-480e-40f5-942f-8efa299aa22f/38316006468.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa4824cd-deec-4b3a-afa6-732e2f27d954/gadumafefepilafimuvuxuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05c95950-c65d-4a64-be5c-4bddffac10f4/mebifunulogevuguna.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/972e5d62-8c93-4404-b238-312cb456e1cc/economics_chapter_2_test_answer_key.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE3 3220 bytes
SHA-256: a96dc493ca625b22a04b98e992cbb68864fcc6fab77de47472cf98b3be597546