Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aec8916f33321c7…

MALICIOUS

PDF

46.0 KB Created: 2021-06-02 21:50:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8c14b820f01aecb3fe98da5b322c52c5 SHA-1: 7d52a7e32404ba1587426dc444fd21490fd20857 SHA-256: 0aec8916f33321c736cc4b8bc7be47eeef7a5e9e03a964f23487d2dd9869ccd1
102 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier and contains a large number of external links, many of which point to other PDF files. The document body and extracted URLs suggest a lure for game cheats and hacks, indicating a likely attempt to direct users to malicious or deceptive content. The presence of a download button lure further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/431946152/roblox-speed-hack-freddy-game-hack
    • http://halitbayramoglu.com.tr/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-free-spins-2021-blogspot_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/minecraft-cheat-client_GM479516143.pdf
    • http://halitbayramoglu.com.tr/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/free-card-link-coin-master_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/free-robux-codes-2021_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/minecraft-clipart-free_GM479516143.pdf
    • http://halitbayramoglu.com.tr/images/how-to-hack-knives-in-assassin-roblox_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/how-to-get-real-robux_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/daily-free-spins-coin-master_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/watch-videos-for-robux_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/daily-coin-master_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/codes-how-to-get-free-robux_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-free-coins-and-spins_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/robux-free-co_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/pokmon-go-free-download-apk_GM1094591345.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-villages_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/how-to-downgrade-minecraft-pe_GM479516143.pdf
    • http://halitbayramoglu.com.tr/images/safe-hack-for-coin-master-android_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-cheat-to-get-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005037.bin
cee250258b35a16b6b932f7b41db07b527ec4c485d3c91ddb73bbfeb7e3b6b38
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5037 27340 bytes
font_01_sfnt_off00008f49.bin
3f928332cb59c3d12eed65cdc423dd1d089e403bad198f58249aeeeae962a8be
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F49 18876 bytes