Malicious PDF — malware analysis report

Static analysis result for SHA-256 4073203210bb463c…

MALICIOUS

PDF

35.7 KB Created: 2021-07-01 07:53:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 06665dbe14dbc36528efa8e33229ea1c SHA-1: 0d6f22a6ecd0f236c4514070c31361decc29f7ba SHA-256: 4073203210bb463cbbea5b1f734905ac5d0dd0c564a679e7a1b5c4af3ea5d962
100 Risk Score

Malware Insights

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

The PDF document contains embedded links and text that promote downloading game cheats and hacks, specifically mentioning 'Cheat Engine 6.7 Roblox Robux'. One of the extracted URLs, http://netcdn.co/app/431946152/cheat-engine-6.7-roblox-robux-game-hack, is flagged as a known malicious redirector. The presence of a visual download button lure further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/cheat-engine-6.7-roblox-robux-game-hack In PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-account-being-hacked_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-no-download-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hack-copy-game-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-gift-cards-list_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-how-to-change-your-skin-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/rbl-robux-gives-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hack-hoogon123-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-com-www_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hacks-en-roblox-descargar_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-wall-hack-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-no-survey_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_002_off000032d9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32D9 22668 bytes
SHA-256: ee74b22c4e21851696a31058b183f619b8ce47369c6bcfc0921fd53497d37690
font_01_sfnt_off000065ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65AD 19308 bytes
SHA-256: e7e1065a1ed93abca18ce45b282d324b238c453ecdeb7e33425780ca0454fd77

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