Malicious PDF — malware analysis report

Static analysis result for SHA-256 273d988a9c345576…

MALICIOUS

PDF

46.1 KB Created: 2021-05-14 05:00:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 505bce0a2f55d553d33aead282ce398a SHA-1: e4702f2ec13f00c2cec8e6fb75b271702cf6569a SHA-256: 273d988a9c345576c0be1be6af28d929a87090d6097c7c8817a9e7632e6c8489
62 Risk Score

Malware Insights

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

The PDF document contains a lure for "Minecraft Hacks" and includes an external URI pointing to a potential download. The presence of a visual download button heuristic and the ML classifier's high confidence score indicate a malicious intent to trick the user into downloading a secondary payload. The document body text is heavily corrupted, but the presence of URLs suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/479516143/minecraft-hacks-1.8-9-game-hack
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coinmaster_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/best-free-robux-sites_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-blogspot_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-spins-coin-master-legit_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-make-free-robux_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/robux-generator-no-survey_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-free-spin-redeem-code_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-coins-free_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/microsoft-rewards-roblox_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/instant-free-spins-coin-master_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-blogspot-links_GM406889139.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/offers-for-robux_GM431946152.pdf
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdf
    • https://playhack.in/minecraft
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004f5e.bin
6503aced72a3c97769e25ef5433503124da7dcc33ff171b6d2260eeefb1d2721		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F5E 31668 bytes
font_01_sfnt_off0000923c.bin
cc1afa3f9e5bafff3439a24eb4e00371cb949553c5e41947bccc849ebc804b61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x923C 18284 bytes

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