Malicious PDF — malware analysis report

Static analysis result for SHA-256 60da9ab5e2ff41b8…

MALICIOUS

PDF

43.1 KB Created: 2021-05-10 23:33:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d5ca5842dcfe0dc0690f01f9545464c1 SHA-1: 6b1650c0173b30cb6ff2d20351f1285677286be3 SHA-256: 60da9ab5e2ff41b89332dcc50e72db710352001eff4914c09a59aeb9e9dea445
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a large number of external links, many of which are related to game hacks and free items, suggesting a lure for users to visit potentially malicious websites. The ML classifier and PDF link farm heuristics strongly indicate malicious intent. The document body, though partially corrupted, contains references to 'Card Hack In Coin Master' and includes URLs that align with the heuristic findings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/406889139/card-hack-in-coin-master-game-hack
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-free-food-on-coin-master_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-2021-spin-link_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-hack-pc-2021_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/win-free-robux_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-spins-and-chips_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-coins-2021-coin-master-link_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-spins-daily_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/minecraft-free-demo_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/buxblast-com-robux_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-online-free-spin_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/hack-to-send-gold-cards-on-coin-master_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/www-free-robux_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/hack-coin-master-pc_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-online_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/kuso-icu-roblox-hack_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/play-roblox-for-free-on-google_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cdb.bin
d2acbb36129591651c4dccce94692dc6cf5f02c51347a4f6ee6dd249d3a95f96		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CDB 25316 bytes
font_01_sfnt_off00008766.bin
eac9cb42de6513dc6552a50abee069bf35bf7768323d30e076f8ef6ec09f6223		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8766 17888 bytes

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