Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f8e81e7e50ee12…

MALICIOUS

PDF

46.0 KB Created: 2021-05-19 21:07:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0cf910a87d5ccb627fb4f57429881ee4 SHA-1: ae3c5b9c75b271dcd100c51a5c2df542a91924ba SHA-256: a6f8e81e7e50ee123f4c130751c1928b7f9aca02e465fc8e38cdc24598c135cf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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/431946152/roblox-free-body-game-hack PDF link annotation
    • http://thomas-hartl.at/images/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • http://thomas-hartl.at/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://thomas-hartl.at/images/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://thomas-hartl.at/images/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://thomas-hartl.at/images/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://thomas-hartl.at/images/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/pokemon-go-free-remote-raid-pass-2021_GM1094591345.pdfIn PDF document text
    • http://thomas-hartl.at/images/rbx-com_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/coin-master-game_GM406889139.pdfIn PDF document text
    • http://thomas-hartl.at/images/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://thomas-hartl.at/images/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://thomas-hartl.at/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://thomas-hartl.at/images/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://thomas-hartl.at/images/how-to-get-free-spins-in-coin-master_GM406889139.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_off000049fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49FD 25572 bytes
SHA-256: 72d4cdd5cbefc1e10bd24d278987c014899f9fab2e2feae0ee83fd9d0817228a
font_01_sfnt_off0000846c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x846C 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9114 18300 bytes
SHA-256: 18afd95e8d4f71f33520678a0de9ae8deb20909ba5c2eba22890e369374f989b

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