Malicious PDF — malware analysis report

Static analysis result for SHA-256 d06449a3fd4f5b41…

MALICIOUS

PDF

75.1 KB Created: 2021-04-02 05:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 12526312ce94566e26a4fb179fab3ed2 SHA-1: 214459224bd3f1b7e95225552b6df1ddd457bd83 SHA-256: d06449a3fd4f5b414ce557acaed60a15cb66687e2d66786ccc8ad5e65fb3c6e1
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. The heuristic 'PDF_SEO_LINK_FARM' suggests the document contains a large number of external links, likely to manipulate search engine results or direct users to malicious sites. The presence of embedded URLs further supports this, with one notable URL being https://nipisod.ru/wix?keyword=cyberpunk+2020+netrunner+programs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://nipisod.ru/wix?keyword=cyberpunk+2020+netrunner+programs
    • https://wojedebaroz.weebly.com/uploads/1/3/1/6/131637691/lilesofekinojabazava.pdf
    • http://joritirumag.mypressonline.com/adverbios_de_frecuencia_en_ingles_ejemplos.pdf
    • http://dafesoxexigu.medianewsonline.com/xukemoremir.pdf
    • https://paniselodo.weebly.com/uploads/1/3/5/9/135969975/febonurofu.pdf
    • http://vazawujuzu.sportsontheweb.net/jafidexefawulizap.pdf
    • http://botavubapisod.mywebcommunity.org/71507113830.pdf
    • http://zuvatewovu.scienceontheweb.net/kavinepepil.pdf
    • https://manoxumumaxu.weebly.com/uploads/1/3/4/4/134472756/silosowulus.pdf
    • http://mebovaduzi.mywebcommunity.org/vocabulaire_juridique_anglais_franais.pdf
    • http://wadopipojadali.iblogger.org/58740099241.pdf
    • http://laxelenokuro.22web.org/nfl_schedule_week_7.pdf
    • http://bonozowibewoz.mypressonline.com/32306600125.pdf
    • http://dimoguzix.iblogger.org/cengage_chemistry_class_11.pdf
    • http://sozawakofuriwoj.getenjoyment.net/38923438093.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://1c54689f-8f60-44d8-8d81-b144d6ea8ada.filesusr.com/ugd/787b0a_b976e74666f74aadac6d72e8bbe916ed.pdf?index=true
    • http://gerinaselamezos.rf.gd/number_of_smes_in_nigeria_2020.pdf
    • https://f8b2de7a-6012-4721-b8f1-df5267d6bb95.filesusr.com/ugd/8ebb60_9b427a100d2d4d37bddfacdb7c327337.pdf?index=true
    • https://c3e810f9-371e-40b9-9a0b-4695a496ec77.filesusr.com/ugd/2c7c49_2a0c8f1b4ce34a10aae9b0b2c022a4ef.pdf?index=true
    • https://afa032df-bfad-47da-a9c8-c79260182993.filesusr.com/ugd/6f9b04_67a6e32f496e4821b56e722dfa9ef2b9.pdf?index=true
    • http://ratebasazor.epizy.com/cisco_dpc3010_troubleshooting.pdf
    • https://35479656-6a94-44d6-ac55-da507c14a2ae.filesusr.com/ugd/d68318_a3d6ac74e5134647908a3cb7a94f7172.pdf?index=true
    • https://e61e9f85-32c5-4861-9fd4-b89109084c35.filesusr.com/ugd/2e4eb4_92e50dce6ad14ad0b04cfb852714accb.pdf?index=true
    • https://b9e1b105-38e0-4bbf-baad-90de1e2021e1.filesusr.com/ugd/432b07_9961890b5ff44e6197328acbd345733b.pdf?index=true
    • https://41fe7446-7195-45c8-906d-de5e784989f9.filesusr.com/ugd/e02969_6fdc3609c5c04500bba65f395dcd0644.pdf?index=true
    • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_ea9ea1e0e3e6427297b2b118f88ec917.pdf?index=true
    • 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_off0000e6be.bin
1a3f3bd3a3b2e4bfb3cbb607606d3dd4b43ef5df9b5fc2f0472e4bfe91856324		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BE 5592 bytes
font_01_sfnt_off0000f9b3.bin
5fee21c53f6538ca8b2c6a2f9eedaf5554d31d2dec1575b4d7b647707a73ae6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B3 11104 bytes

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