Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f3d57edf927160…

MALICIOUS

PDF

76.6 KB Created: 2021-03-12 04:12:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 08c20b5f2e2896a0faab7ab54411b25f SHA-1: b0fe6d87005c89885118ca1308aab48129443044 SHA-256: 46f3d57edf92716023a419681406a805b49fa6070776eb66a16c744a237b5055
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with the primary one being https://leonvi.ru/award?keyword=warsan+shire+poems+pdf, suggesting a phishing or malware distribution lure. No scripts were extracted, but the PDF structure and embedded URIs point towards a malicious document designed to trick users into navigating to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/award?keyword=warsan+shire+poems+pdf
    • http://sovuradema.medianewsonline.com/26096423503.pdf
    • https://cdn-cms.f-static.net/uploads/4387056/normal_600dc5bfee5c6.pdf
    • https://static.s123-cdn-static.com/uploads/4386609/normal_5fffc5a7887c8.pdf
    • https://static.s123-cdn-static.com/uploads/4466153/normal_5fc69eb79221f.pdf
    • http://gerda-msk.ru/6475823901gue9z.pdf
    • http://mosomupusafebin.medianewsonline.com/74310560049.pdf
    • https://static.s123-cdn-static.com/uploads/4382771/normal_6009789285f9d.pdf
    • http://best-store.club/9902183102i7jbd.pdf
    • https://cdn-cms.f-static.net/uploads/4485930/normal_6048c53f1e504.pdf
    • http://o-karte-kopilka.com/power_of_positive_thinking_quotes_in_hindiyylkl.pdf
    • http://kefijor.mygamesonline.org/febiritofaxom.pdf
    • http://labiosdewonda.com/8182689945835p0b.pdf
    • http://docita.fun/donuvezegologidwubb4.pdf
    • http://junumidutuzakox.getenjoyment.net/riwotobejilumas.pdf
    • http://logawedulukudan.mywebcommunity.org/louis_berkhof_systematic_theology.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/44c104b6-db94-497f-b6c5-b3ff0e9f2fb4/why_is_my_samsung_fridge_ice_maker_not_working.pdf
    • https://uploads.strikinglycdn.com/files/45499858-3f10-4711-8d50-27d6e5458488/12106883538.pdf
    • https://uploads.strikinglycdn.com/files/2093d398-95a4-4a59-8f51-8b86954c9751/xugib.pdf
    • https://uploads.strikinglycdn.com/files/6e9a1ac7-1bc5-46d8-bee3-21239868fbd6/28291144038.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_off0000f13f.bin
09724c8c14ba861dba645901891d41bc833bffbc9ec80b32daca3bf1fef65c8f
pdf-font-stream PDF embedded font (sfnt) at offset 0xF13F 5264 bytes
font_01_sfnt_off00010307.bin
b77b538456fd5277cd3ca41b04f36385cc356071593db42705d10d5f7646dad5
pdf-font-stream PDF embedded font (sfnt) at offset 0x10307 10032 bytes