Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac5d24164727570…

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 15:14:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6bd063778e3dc7f5356d2803dc4b1ef7 SHA-1: d8950b74b5921d5aa4b5982c35e71a6b8cee01e1 SHA-256: 5ac5d241647275708a52c3d38c6cbd983d9d30d04c11123bff1158d85506b870
102 Risk Score

Malware Insights

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

The PDF document contains a lure for "Free Spins For Coin Master App" and numerous external links, indicating a likely attempt to direct users to malicious or unwanted content. The heuristic firings confirm the presence of a large link farm and an embedded URI, strongly suggesting a malicious intent to redirect users. The document's structure and content align with social engineering tactics to trick users into clicking on deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/free-spins-for-coin-master-app-game-hack PDF link annotation
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/como-hackear-tener-robux-gratis-con-bots_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/how-to-get-free-robux-no-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/how-to-get-free-robux-on-iphone-7_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/rc-roblox-hack_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/how-to-hack-people-roblox-real_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/roblox-dragon-simolator-hack-script_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-exploit-hack-full-lua-overpowered-commands_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/bacon-do-you-want-free-robux-buur_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-roblox-cosmetic-codes_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-free-robux-slows-down-towards-100_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/top-10-best-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-bc-roblox-codes_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/hack-para-mad-city-roblox-2021_GM431946152.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
font_00_sfnt_off0000327f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327F 23416 bytes
SHA-256: 1dedd41894cdcd680c8b63d27c6100c8bfaad2a9d52a0ac2529321aad81882a9
font_01_sfnt_off0000668a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668A 18176 bytes
SHA-256: 3801bf7a1deb8554b037031e06bdefc56ff30112f6b39d510dbb5cf942fa8267

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