Malicious PDF — malware analysis report

Static analysis result for SHA-256 df7acd1b5383c12c…

MALICIOUS

PDF

41.9 KB Created: 2021-05-12 22:12:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0a7ca977d42a6d223a75d4678e7e768c SHA-1: 71ad0837023105c1124fcdcb60d3d59323315c60 SHA-256: df7acd1b5383c12c07a1cf80d78fcac078857e40de1bc5749a11196a42a52280
162 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a phishing or scam lure. It contains numerous links to external PDF files, many of which appear to be SEO-optimized for game-related hacks and rewards. The document body also contains a direct URL to a "coin-master-hack" and explicitly requests sensitive recovery information, indicating a strong intent to deceive users into compromising their accounts or downloading malware.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/coin-master-hack-spins-download-game-hack
    • http://bvmg.nl/images/free-robux-just-enter-username_GM431946152.pdf
    • http://bvmg.nl/images/roblox-place-rewards_GM431946152.pdf
    • http://bvmg.nl/images/coin-master-hack-tool-v1-9-download-free_GM406889139.pdf
    • http://bvmg.nl/images/roblox-script-hack_GM431946152.pdf
    • http://bvmg.nl/images/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • http://bvmg.nl/images/how-do-you-get-free-robux-without-paying_GM431946152.pdf
    • http://bvmg.nl/images/free-robux-games-that-actually-work_GM431946152.pdf
    • http://bvmg.nl/images/how-to-make-a-minecraft-client_GM479516143.pdf
    • http://bvmg.nl/images/roblox-promo-codes-free-robux_GM431946152.pdf
    • http://bvmg.nl/images/2021-free-spins-coin-master-link_GM406889139.pdf
    • http://bvmg.nl/images/free-robux-site_GM431946152.pdf
    • http://bvmg.nl/images/free-roebucks-com_GM431946152.pdf
    • http://bvmg.nl/images/coin-master-free-spin-codes_GM406889139.pdf
    • http://bvmg.nl/images/links-for-coin-master-free-spins_GM406889139.pdf
    • http://bvmg.nl/images/hack-coin-master-no-survey_GM406889139.pdf
    • http://bvmg.nl/images/how-to-get-free-spins-in-coin-master_GM406889139.pdf
    • http://bvmg.nl/images/roblox-robux-hack-generator_GM431946152.pdf
    • http://bvmg.nl/images/get-free-spins-coin-master-link_GM406889139.pdf
    • http://bvmg.nl/images/free-robux-without-offers_GM431946152.pdf
    • http://bvmg.nl/images/free-old-roblox-accounts_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047b1.bin
d7cfdb616c83c41e1228e511f6d2c655f0fc9ec96091d7a7e33847919710c123
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47B1 25240 bytes
font_01_sfnt_off000080bd.bin
ffdd1f544133aaa986ff11dc6bde1115101e3f500a02a81e5d1fa021c7bacaca
pdf-font-stream PDF embedded font (sfnt) at offset 0x80BD 18472 bytes