Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5a966fd042d42c…

MALICIOUS

PDF

100.8 KB Created: 2021-05-09 16:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f880a3622ca363fc496643e8ceaf34ad SHA-1: da42df9b09440a49d117daf62dded206c27418ad SHA-256: 0e5a966fd042d42c91446e7bb8734576886274bc88f3529ae26c324e259cd50d
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to potentially malicious domains, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, specifically a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of an attempt to redirect the user to malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=how+to+view+cursor+coordinates+in+autocad+2015
    • http://xipodijajul.sportsontheweb.net/zajavuno.pdf
    • http://majusenise.sportsontheweb.net/94131376112.pdf
    • http://luwogexejel.getenjoyment.net/80690747409.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/134ca9a9-7e02-4bae-9319-2184a5b48e7e/tatetesizetafepitefu.pdf
    • https://s3.amazonaws.com/lorifawuvawot/2012_holden_barina_tm_manual_review.pdf
    • http://vomovawesojuti.epizy.com/fozeronesudid.pdf
    • https://05282879-aed3-4f16-ac14-d534add4d4bd.filesusr.com/ugd/0f8b7c_3859e8ffcb5140e68056d51c2b0396b4.pdf?index=true
    • https://ef2e072a-e8a2-4438-804d-cc750be2e2f6.filesusr.com/ugd/6a22cb_5a778866dd524724b87499f0bb260bfd.pdf?index=true
    • http://miganuvag.myartsonline.com/88131390286.pdf
    • http://dajomilot.atwebpages.com/71219258401.pdf
    • https://s3.amazonaws.com/sosupejuxofedo/20943685646.pdf
    • https://s3.amazonaws.com/sugosubexez/sejavulaxijobibufewajof.pdf
    • https://s3.amazonaws.com/dogevazapiwediw/42382924499.pdf
    • http://towilisok.epizy.com/assessing_the_risk_management_process_iia.pdf
    • http://sinipuxi.epizy.com/bajobanorolezazukujamo.pdf
    • https://s3.amazonaws.com/fadadedezeker/tegaxozosamijuxajebofakow.pdf
    • https://696f1bd8-06c3-47a7-a8f7-e83e17ec8d18.filesusr.com/ugd/5ad03d_90c51e48ec4243a9ad805b44c3eca987.pdf?index=true
    • https://s3.amazonaws.com/jemisajoda/the_halflings_gem_audiobook.pdf
    • https://s3.amazonaws.com/jokotaziweluge/how_update_garmin_nuvi_free.pdf
    • https://uploads.strikinglycdn.com/files/54c9575e-86f8-4976-b82a-c4b45b790901/vokokaxafilidugasodeto.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_off00014c1a.bin
a8d816fe9f477bd9910e1eaccdf7859bc77fd372c72a646fd5c5d84d4df41cb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C1A 5464 bytes
font_01_sfnt_off00015edd.bin
5e5c330b6d44c76855e45640334f45425f8614a9b4b761320512d5a8d95baa7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15EDD 11192 bytes

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