Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e96da4a8ca7103…

MALICIOUS

PDF

71.3 KB Created: 2021-06-10 01:19:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: da6904a86bc206087e0a3f04c011511f SHA-1: b61f18b81526b5c14c24de41a1025dfb81dad6df SHA-256: 01e96da4a8ca71037ba16ba446fdc6cdf77ea942a9e40b58fc5e1d9a7da8da58
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://catamma.ru/pbw?utm_term=dragon+ball+shin+budokai+2+psp+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374963/normal_5fc98aa05dee9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454043/normal_6047c30950e96.pdfIn PDF document text
    • https://lamegebepezaris.weebly.com/uploads/1/3/1/4/131438642/e70f1ba18f010a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493600/normal_6054c513a8e30.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4376357/normal_60b30a0e5a870.pdfIn PDF document text
    • https://kibidabusiben.weebly.com/uploads/1/3/1/0/131070702/lifavumerusiden.pdfIn PDF document text
    • https://ximofutaxa.weebly.com/uploads/1/3/4/6/134626718/zovuvaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490547/normal_5ff1cedd28105.pdfIn PDF document text
    • https://juwomazitebuden.weebly.com/uploads/1/3/1/4/131414743/zesimoxik_juvagubol_wivimuvi_pexetidof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374207/normal_60c13d965683e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386851/normal_602421ebaf2ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454558/normal_6062075aac9db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390999/normal_601e43e8c99cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485703/normal_5fee890797ad4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449605/normal_60683d0736f71.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418963/normal_5fe4264c62fea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446029/normal_60264cf4490e6.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/61352cce-6394-4091-b485-bf3b42cd1acb/lunoxuzedizonugoponukes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/585b7905-200f-4a37-99df-20211d9dd283/puzadifipidorireloj.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_off0000d7d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D9 5648 bytes
SHA-256: e38614387407a01addb7f09a54e17f5ba04a687c06cc77210f0cbdf6024c4d8d
font_01_sfnt_off0000eb18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB18 10936 bytes
SHA-256: 4ea77f4144dfe0d7b37e52fde187a4b7cde56cb7ebcb47f6ff7523ef6c38b5ce

Open this report in the interactive analyzer, or submit your own file for analysis.