Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a49d6ce4e9f20c…

MALICIOUS

PDF

44.2 KB Created: 2021-06-13 23:54:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9fcd448cf12159c2a0cc6dde056548b7 SHA-1: f9c11ae62d1cf4ec7af8a565d418b2236ff62372 SHA-256: 46a49d6ce4e9f20c295d900472713f1f878141337a78e1d9c774dbc3a1b8ffaf
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1036.005 Match Legally Obtained Professionally Produced Content

This PDF document contains numerous links designed to lure users into downloading game hacks or cheats, impersonating brands like Microsoft. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and 'SE_BRAND_CREDENTIAL_PHISH' confirms brand impersonation. The primary URL, http://netcdn.co/app/431946152/unlock-all-guns-in-roblox-phantom-forces-hack-game-hack, is likely a distribution point for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/unlock-all-guns-in-roblox-phantom-forces-hack-game-hack.
  • 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 http://netcdn.co/app/431946152/unlock-all-guns-in-roblox-phantom-forces-hack-game-hack PDF link annotation
    • http://asiasieja.pl/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/tiktok-free-app_GM835599320.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/can-you-get-arested-for-having-a-roblox-hacker-group_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/pubg-uc-global_GM1330123889.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-link_GM406889139.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
font_00_sfnt_off00004bbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BBD 25820 bytes
SHA-256: 67567f34ed03dbb4ac0492e2045bdaa7e0e6a2ab69418e6ee944b4a3b2e2708e
font_01_sfnt_off000087a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A8 19356 bytes
SHA-256: 47932501b6c9907c657087ac78feadd9e5b137507352cb99fa4f037fd4a39168

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