Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca1246633f116824…

MALICIOUS

PDF

82.3 KB Created: 2021-03-27 18:15:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1ea5934cb6ef6149e4f8d28ddc35487 SHA-1: 75488bad6bf20efd2e026cddd93a055d8321ff45 SHA-256: ca1246633f116824261de0648391a0e238fe7bc8a7bed9fefa7528e9c5642d03
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a domain associated with software downloads, suggesting a lure for users seeking applications. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it is designed to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • 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://maypoin.ru/wix?keyword=repelisplus+tv+apk
    • https://static.s123-cdn-static.com/uploads/4368477/normal_5fcdd133cbc37.pdf
    • http://drive4mclaneeffingham.com/nanowemyzwqk.pdf
    • http://wspring.space/directv_genie_remote_control_not_workingg08e2.pdf
    • http://shopyou.online/upbte_revaluation_form_2019_last_dateo5qe5.pdf
    • https://cdn-cms.f-static.net/uploads/4391909/normal_601d99d9c5cc0.pdf
    • https://cdn-cms.f-static.net/uploads/4446776/normal_604624d984069.pdf
    • http://decideyouself.fun/bexanibelulazg5my.pdf
    • https://static.s123-cdn-static.com/uploads/4478968/normal_5fcf93a96a59a.pdf
    • http://bonusiotsbera.online/60646380233qa6dh.pdf
    • https://cdn-cms.f-static.net/uploads/4378386/normal_600ce7a90a113.pdf
    • http://medyahanem.com/vegifalabofajutijb3wch.pdf
    • http://rte-ita.fun/terms_of_versailles_treatyyrufn.pdf
    • http://test123test.xyz/tovirij4vgvb.pdf
    • https://static.s123-cdn-static.com/uploads/4479923/normal_5fcd7301ef157.pdf
    • http://extrameets.fun/61583015633fslic.pdf
    • http://verification-help.com/subway_chicken_sandwich_nutrition_facts0bxgc.pdf
    • http://premial.su/899325467869s0ge.pdf
    • https://cdn-cms.f-static.net/uploads/4470961/normal_6037fc42be2cf.pdf
    • http://logoped-samara.ru/26200312413ebhu9.pdf
    • http://prognoz-football.club/17788301864id891.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wuwabobujasivor/80252423181.pdf
    • https://s3.amazonaws.com/silubebebefuju/driver_argox_os-_214_plus_pplb.pdf
    • https://s3.amazonaws.com/rafiralexezol/articles_of_organization_indiana_template.pdf
    • https://s3.amazonaws.com/dukajevo/87429016834.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_off0001040f.bin
66f1e05b0530d9abda28246d7e307882ad7ac0a4cdd20777d6eceb0740d72426
pdf-font-stream PDF embedded font (sfnt) at offset 0x1040F 4848 bytes
font_01_sfnt_off000114af.bin
188fc0f7ccde3590c24d98564b76dbaf20287a107523df5ab3cbd5491617987b
pdf-font-stream PDF embedded font (sfnt) at offset 0x114AF 12108 bytes