Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c45e9f12345fd9e…

MALICIOUS

PDF

47.3 KB Created: 2021-05-12 01:33:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: aa4fc5caf149e29b6ac012dce0eb5bff SHA-1: 6b2e2b5ad9f825457ac72f3ebff6304f170bf2e0 SHA-256: 0c45e9f12345fd9e22a04545293436204baea7d15aa93290cf6e1f13cea1f009
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, which is likely intended to deliver a malicious application disguised as a game or cheat. The presence of a visual download button further supports this lure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interest in free in-game currency or software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.xyz/app/479516143/minecraft-pe-0.17-0-apk-free-download-android-game-hack In PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/robux-2021_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/roblox-generator_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/free-robux-games_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.aevasia.com/uploaded_files/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://sigmaclient.info#2In PDF document text
    • https://flux.today#3In PDF document text
    • https://youtuIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d21.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D21 27704 bytes
SHA-256: 6de920e008858cf0f521a594152186db2f5a40f190fb44e1c7a9b9b14e5f9e21
font_01_sfnt_off00008a59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A59 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off000093fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93FA 19188 bytes
SHA-256: 89862b23db33f89fc4e06f26f29a139fa923ad6cd018f80821c34a6209bfa909