Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdd95f7c39f9bb6e…

MALICIOUS

PDF

45.3 KB Created: 2021-06-09 08:20:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: be2236a5b04a1271739df3eb62392785 SHA-1: 9ec532bd4e0785b491ac297ac6ab5d9a0f2c5ed1 SHA-256: bdd95f7c39f9bb6eb97b1f745a665efa3ab608b69c0face0e0e1315d581e0ed9
102 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs that lead to websites offering game hacks and cheats, suggesting a lure to download potentially malicious content. The presence of a 'download button' heuristic further supports this malicious intent. The ML classifier also strongly indicated maliciousness.

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.tw/app/431946152/roblox-work-at-a-pizza-place-money-hack-2021-game-hack PDF link annotation
    • https://reggieslockandkey.com/images/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/pubg-uc-in-rupees_GM1330123889.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-shirts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-hack-ban-roblox_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/vip-roblox-free_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-on-mobile_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_004_off000050dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50DD 24888 bytes
SHA-256: 0e96839e33c7dabb254dbea06043deb3afff54c8c7654a4ab1e60a7bbeae7017
font_01_sfnt_off00008a22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A22 19620 bytes
SHA-256: 08bccf5335ea13cc4a07cf5899427654f538c7888909964d2e59a17c2133501d

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