Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe1e1e81d8f81d8…

MALICIOUS

PDF

42.0 KB Created: 2021-05-11 13:38:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d1d983d05fab71407d02e253b8f3539f SHA-1: be5179aa18ee4c4474327865e5732d72853ef5cb SHA-256: 6fe1e1e81d8f81d8c3d1a95dadf66376c449eaefd8e6bdd9dcbea8938e88d677
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm pointing to other PDFs, many of which are hosted on suspicious domains and contain keywords related to game hacks and cheats. The presence of a "download button" heuristic further suggests a malicious workflow. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of it being used for malicious purposes, likely to distribute further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/free-shields-coin-master-game-hack
    • http://pustaka.polbangtan-gowa.ac.id//repository/roblox-gang_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/hack-my-spins-coin-master_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-coins-and-spins-in-coin-master_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/minecraft-tower-defense-hacked_GM479516143.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/how-to-get-a-free-minecraft-account_GM479516143.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/is-coin-master-hack-safe_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-robux-cards_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/coin-master-hack-8-ball-pool_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/today-free-spin-link-for-coin-master_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/unlimited-free-spins-coin-master_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-robux-with-no-human-verification_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-to-get-free-robux-without-human-verification_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/roblox-www-com_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-long-is-the-minecraft-free-trial_GM479516143.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/roblox-hack-download_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-account-roblox-with-robux_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-robux-no-verify_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/coin-master-free-spin-realme-products_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/roblox-gift-card-for-free_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/roblox-free-followers_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b5d.bin
60f2ead90fff408a446e405328389b81479b94af2487ea71480c293b10449bcb		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B5D 24312 bytes
font_01_sfnt_off00008259.bin
e085952d3720952a51e878c41e5b5c7a5f24b6488949d11870729d067ad6b009		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8259 18124 bytes

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