Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a9e87c2604d96d9…

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 02:36:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 01f13f70ec51721ae94608cd497d22b0 SHA-1: c311c20362a5618d36074e4d81086ea57f88f8e1 SHA-256: 2a9e87c2604d96d9d9e0c7419fae3153c034a650576ee41a59688f9266fd24d2
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are SEO-optimized and point to resources related to game cheats and free items. The presence of a direct download URL and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful content. The document body, though truncated, reinforces this by mentioning 'Free Bane Mask On Roblox' and including similar download-related URLs.

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.co/app/431946152/free-bane-mask-on-roblox-game-hack PDF link annotation
    • http://perpustakaan.stikim.ac.id/slims/repository/roblox-mario-adventure-obby-boos-mansion-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robloxree-roblox-that-you-do-not-need-to-install_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-hack-on-roblox-apocalypse-rising-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-hack-any-account-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/roblox-how-to-use-osiris-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-by-agarminer-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/invisibleble-hack-roblox-we-are-devs_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_off00002fac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAC 22392 bytes
SHA-256: edb0c42823ee86a7b3f3fecbd592570b75f1e5cd4a8dc47185f1ba3c9fa679fc
font_01_sfnt_off0000619f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619F 19016 bytes
SHA-256: 979e74e1d5c5c4c2bfafd59874fa99773ccea152add4cb9ca10787ff11d4f324

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