Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0d9a946bdb577a…

MALICIOUS

PDF

74.9 KB Created: 2021-06-10 12:10:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d06da0ffa5e7c444619c1ea51d1dab2 SHA-1: d33b22980dcaf6a68bb561bd88b38190fd256bb4 SHA-256: 0e0d9a946bdb577af4aac740d7a206a0bb6e3d3e0ef35723faa98c11c45e7167
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. The PDF contains a large number of external links, many hosted on Weebly and other platforms, suggesting it functions as a link farm designed to redirect users to potentially harmful content. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic strongly support this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pistant.ru/pbw?utm_term=letasoft+sound+booster+serial
    • https://vitozosusa.weebly.com/uploads/1/3/4/7/134727909/1990554.pdf
    • https://cdn-cms.f-static.net/uploads/4386597/normal_60bc72e1e2707.pdf
    • https://lumamiwaba.weebly.com/uploads/1/3/4/7/134735329/jodavesufik_giboju.pdf
    • https://fuvodaxe.weebly.com/uploads/1/3/1/3/131379021/6dca9c5ccf1.pdf
    • https://supipujijasof.weebly.com/uploads/1/3/0/7/130739476/wagirapot.pdf
    • https://static.s123-cdn-static-d.com/uploads/4375083/normal_60b11ef765290.pdf
    • https://cdn-cms.f-static.net/uploads/4491445/normal_6059c5f3354d1.pdf
    • https://cdn-cms.f-static.net/uploads/4490127/normal_600a7376d7a1c.pdf
    • https://cdn-cms.f-static.net/uploads/4492278/normal_605ac688138f4.pdf
    • https://cdn-cms.f-static.net/uploads/4403818/normal_60b976cc84bdc.pdf
    • https://cdn-cms.f-static.net/uploads/4455178/normal_6021a546566c6.pdf
    • https://fufefofixikulo.weebly.com/uploads/1/3/1/1/131163927/rudizomopulad-vorapaj-lirakamup.pdf
    • https://jerimokini.weebly.com/uploads/1/3/4/4/134484757/botixona.pdf
    • https://cdn-cms.f-static.net/uploads/4392864/normal_60543db0e9a2f.pdf
    • https://cdn-cms.f-static.net/uploads/4403814/normal_606c92f93bf59.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/aa2667e6-c34f-4f9a-ab68-ecb1fd1a16bb/what_is_the_composition_in_photography.pdf
    • https://uploads.strikinglycdn.com/files/22ef6b8c-fd2b-4b2a-98b7-cb8bd2aafb5b/reactivities_organic_chemistry_lab_workbook_answers.pdf
    • https://uploads.strikinglycdn.com/files/09d84182-8691-4283-b77b-d82338e5e081/56117958034.pdf
    • https://uploads.strikinglycdn.com/files/326295f2-76fd-4dae-8cf2-d68b8c1d2d72/how_to_set_a_ge_water_softener.pdf
    • https://uploads.strikinglycdn.com/files/769b298a-13b1-4d4e-ac64-01b3ebe15a55/fe_review_manual_civil_engineering.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8ef.bin
92f81d39aafb00191f7b15b6a95c60f7c2c6b126b207bcd8e54ae96cff752e17		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8EF 4980 bytes
font_01_sfnt_off0000f9ed.bin
a244329f58d4d5564295a4f4edac25dee54f4a1eaaf63c64ca0516eac31eda11		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9ED 10748 bytes

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