Malicious PDF — malware analysis report

Static analysis result for SHA-256 60306178d0551888…

MALICIOUS

PDF

48.3 KB Created: 2021-05-19 22:38:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 4762fdfd05dc8a922416201e85049687 SHA-1: 0ce9d352bf5dea28c7ae7498bfbe8b6e18124dfa SHA-256: 60306178d05518884191364e6d567fd8b9bbfcf1ca99704a922ca868fe71ac85
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to known malicious infrastructure, specifically advertising free game hacks and currency. The document body, though partially corrupted, contains references to these lures and the malicious URL. The presence of a visual download button further supports the deceptive nature of the document. The primary attack pattern involves luring users to click on these links, which likely serve as a gateway to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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/431946152/roblox-apocalypse-rising-hack-game-hack In PDF document text
    • http://killebergsridsport.se/images/coin-master-app_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/roblox-free-followers_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/www-robux-us_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-hack-without-human-verification-india_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-roblox-com_GM431946152.pdfIn 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_off00004876.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4876 31800 bytes
SHA-256: 46e4c3109afcf1272097da5c86f8d8eec4c00aa8f3c3beb5b42d2ee2e718bef8
font_01_sfnt_off00008ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC9 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00009868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9868 18948 bytes
SHA-256: c81671b47ab5e7fd402c3d16699df98b51b9b699798839031d1ff55305a8bd80

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