Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0de0f79f55ad99…

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 16:07:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6f141c2a790bc15c04048746563f239e SHA-1: e7732f14cf6bba49e93f15fb0876504d0abe1305 SHA-256: 2a0de0f79f55ad993a0d318d31a278bbf844d7c1ab79a46b93ad5160e44e87d3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document contains multiple embedded URLs and a prominent external URI pointing to sites offering game hacks, suggesting a lure for users to download potentially malicious files. The presence of a "download button" heuristic and the ML classifier's high confidence further support a malicious intent. The document body, though partially garbled, contains references to "Coin Master Hack" and URLs consistent with this theme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/legit-coin-master-hack-site-zyngaplayerforums.com-game-hack
    • http://libsmpn1balongpo.sch.id//repository/coin-master-hack-mod-apk_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/free-minecraft-texture-packs_GM479516143.pdf
    • http://libsmpn1balongpo.sch.id//repository/free-robux-hack_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spin-link-app_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/roblox-t-shirt-free_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-2021-generator_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-to-play-minecraft-for-free-on-pc_GM479516143.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spin-2912-2021_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/daily-coin-master-free-spin-link_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-no-verification_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/minecraft-free-apk-download-016-0_GM479516143.pdf
    • http://libsmpn1balongpo.sch.id//repository/google-coin-master-free-spins_GM406889139.pdf
    • http://libsmpn1balongpo.sch.id//repository/minecraft-on-computer-free_GM479516143.pdf
    • http://libsmpn1balongpo.sch.id//repository/roblox-hack-2021_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/free-roblox-hack_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-do-you-get-free-roblox-money_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-to-become-a-hacker-in-roblox_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/how-you-get-free-robux_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/robux-free-com_GM431946152.pdf
    • http://libsmpn1balongpo.sch.id//repository/collect-free-spins-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aea.bin
52513bf469fe3733e3af444eae574e5ea7a8e6db463246da309b9970736b6012		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AEA 24388 bytes
font_01_sfnt_off000082e6.bin
c7201ec4c3a8de5860eeb2e6c9e6c90ee147184e9a3338a06e2bc3af5219e027		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82E6 18996 bytes

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