Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0c8cd2c69a9c22…

MALICIOUS

PDF

46.4 KB Created: 2021-05-11 14:06:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 59d2e429148ea87e1943ff7aa7be5e3d SHA-1: aa21d690b1f192046cb2fc176efb74d7d89af626 SHA-256: 7a0c8cd2c69a9c22b1a2d01f6679786123e0e41285f0ffb56026fe8f9f2087a4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which are structured as a link farm pointing to pages offering free game currency or downloads. The primary URL, https://netcdn.xyz/app/479516143/minecraft-free-download-no-virus-game-hack, suggests a lure for game cheats or downloads. The heuristic findings indicate a high likelihood of malicious intent, classifying it as a PDF SEO link farm designed to distribute potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-free-download-no-virus-game-hack PDF link annotation
    • https://perpustakaan.stami.ac.id//repository/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/rbx-website_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/roblox-website-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/robux-redeem_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/roblox-people-girl_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000501e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x501E 29288 bytes
SHA-256: 0727819aa9eb4f17a77d71a112595d41aa602e9da518caef2feb6b29216bc853
font_01_sfnt_off00009256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9256 18564 bytes
SHA-256: 73fda2f7f87cf364c845d3fc1df52f7bb102f180f2e093609ba7690804eae928

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