Malicious PDF — malware analysis report

Static analysis result for SHA-256 379add97f10ccdcb…

MALICIOUS

PDF

46.0 KB Created: 2021-06-11 10:15:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 507c6c88fabae05bc945eb1d17622ffc SHA-1: d852653a1f811f17c38b746977ac163211847f2d SHA-256: 379add97f10ccdcb0c85f2492100751ca757ef880c139af3c559ea6aa7414f40
102 Risk Score

Malware Insights

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

This PDF document employs a common lure of free Robux to entice users. It contains a large number of external links, forming a link farm, with the primary URL pointing to a site offering a 'free Robux game hack'. The document's structure and content strongly suggest it is designed to drive traffic to malicious or scam-related websites.

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/rbxrain.com-free-robux-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/counter-blox-roblox-offensive-hacks-aimbot_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/gain-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-jailbreak-cheats-or-hacks_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-catalog-items-on-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/fly-hack-dll-exploit-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000522c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x522C 26636 bytes
SHA-256: 0a453d0b2f1f519ee080cabde24ddef3452b8accf98690cf2cbe7c45aa90d654
font_01_sfnt_off0000906c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906C 18688 bytes
SHA-256: dc1cb1d0bc1beed04ae77fcd7c7619c65503298d5bb3177aa8d560622ca773c2

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