Malicious PDF — malware analysis report

Static analysis result for SHA-256 f969062f8d849ebe…

MALICIOUS

PDF

62.8 KB Created: 2021-03-11 19:30:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b75682bebf338226dead84a4a7ed3c8b SHA-1: 03c4fe0a2360ac364bc4652a302325a16711bcc6 SHA-256: f969062f8d849ebebdf227971ddfd0c5026d37a238eeb53c9ee35e8ae77526d0
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.8280

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 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
  • 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://mezovuduw.ru/strik?utm_term=how+to+draw+a+sunset+in+procreate PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4405930/normal_5fe16ff380573.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376374/normal_5fd9c9c459a94.pdfIn PDF document text
    • https://zemizipip.weebly.com/uploads/1/3/4/0/134098502/fifojamusetiguj_sujezolezaga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458849/normal_601ace7d99356.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408711/normal_603ff4256a034.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448357/normal_6033b8dbb432a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410204/normal_6024f85f9bf8d.pdfIn PDF document text
    • https://fopalese.weebly.com/uploads/1/3/5/3/135349797/4074047.pdfIn PDF document text
    • https://siwevobone.weebly.com/uploads/1/3/5/3/135317475/5a4812.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494138/normal_604149aa0ce07.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/08268ee0-5b7b-498d-b119-c13f55a10239/57629398203.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ba8c286-2464-48bb-86ea-c06d7471a822/the_phases_and_warning_signs_of_relapse_independence_press.pdfIn PDF document text
    • https://26f2e344-8444-46ea-90c9-5a893bcc2fb3.filesusr.com/ugd/b8c837_fef05849f46b412bad8c21b1c3f7170b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/260d8b6f-de15-44aa-927c-efced36fd905/zopigezatazom.pdfIn PDF document text
    • https://229c3593-bb94-4e5d-9b9f-ca3747df48ef.filesusr.com/ugd/145364_4a2a468ac13d4c1780fd69857fc0f89d.pdf?index=trueIn PDF document text
    • https://36c7e617-1221-4173-b726-d5bce2878801.filesusr.com/ugd/610d21_44c505e5dbce415496cc6606e5603569.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f43354b4-20de-465a-9fcf-35ea0c1d922d/blade_trio_180_cfx_bnf_basic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0b7c485-5501-4321-b6d0-fa332d9c6eca/anne_rice_wolf_series_book_3.pdfIn PDF document text
    • https://90ff81fc-98d9-4e53-96a3-aaa5c1c2042e.filesusr.com/ugd/bb5aff_6b875dbe17aa41e48a9e7acdd5433c17.pdf?index=trueIn PDF document text
    • https://7a1f2a0d-094a-4466-88af-72a4af93b9fa.filesusr.com/ugd/22739b_71345999465941d68c94f39f290c3007.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8E 5088 bytes
SHA-256: 7758423c6b1e38d3949a8cbab313a776a08f0f6300e1f4d7d168385654e45df9

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