Malicious PDF — malware analysis report

Static analysis result for SHA-256 005c7d8c4432c563…

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 12:34:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 004966b59b1b497ca8b610f542e87545 SHA-1: 6b504567efc9926d6e4012cd79810671043a5941 SHA-256: 005c7d8c4432c5633006776d1a21dbdd94a4992c2f2c7f952375a46be5518a6d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which are SEO-optimized and point to sites offering game-related cheats and hacks. The ML classifier strongly indicates maliciousness, and the presence of external URIs suggests a phishing or credential harvesting attempt. The document body, though partially garbled, contains keywords related to free game items and hacks, reinforcing the lure.

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-roblox-usernames-with-robux-game-hack
    • http://library.yamasi.ac.id/repository/coin-master-free-spins-daily-fb-champion_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/free-gold-cards-in-coin-master_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/roblox-spongebob-hacker_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/coin-master-hack-ios-jailbreak_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/download-roblox-clothes-free-online_GM431946152.pdf
    • http://library.yamasi.ac.id/repository/roblox-free-robux-obby-2021_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/coin-master-hack-spin-generator_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdf
    • http://library.yamasi.ac.id//repository/roblox-free-online-game_GM431946152.pdf
    • http://library.yamasi.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdf
    • http://library.yamasi.ac.id/repository/como-hackear-coin-master_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/free-clothes-for-roblox-2021-youtube_GM431946152.pdf
    • http://library.yamasi.ac.id/repository/how-to-be-vip-on-roblox-for-free_GM431946152.pdf
    • http://library.yamasi.ac.id/repository/roblox-juwelen-hack-mad-paintball-2_GM431946152.pdf
    • http://library.yamasi.ac.id/repository/teleport-hack-roblox-lumber-tycoon-2_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/codes-to-get-free-robux_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/free-spins-coin-master-links-blogspot_GM406889139.pdf
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-link-today_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/free-roblox-rs_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fab.bin
bc73127c5f6b9802872101f94699b914a8ebf076f5da7a9729c8f509d7a5df23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAB 22844 bytes
font_01_sfnt_off000062eb.bin
c4adb37eb2fba365c25b308a00b8fadef02fd984f60718ba60d1923ca508f145		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 19640 bytes

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