Malicious PDF — malware analysis report

Static analysis result for SHA-256 651ef1ad01689efc…

MALICIOUS

PDF

42.4 KB Created: 2021-05-10 11:12:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: fa5ec1ba78bdd3f1712523e5e3650d52 SHA-1: 1b749a953b011b0dfda25958c73e0149be81625e SHA-256: 651ef1ad01689efc9b713dd1274504616d865f7ac3ec7800648c4b467a306ff8
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a malicious URL, disguised as a game hack generator. The document body explicitly mentions 'How To Hack Coin Master Ios' and includes a call to action to 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', indicating a social engineering lure. The presence of embedded URLs and the nature of the lure suggest an attempt to trick the user into downloading or executing a malicious payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0118

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-hack-coin-master-ios-game-hack In 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000033eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33EB 24812 bytes
SHA-256: 787f8f4aad8267f866610fb07186f8afd2d157134f226a0dd1b1e7a80cfa5140
font_01_sfnt_off00006d41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D41 4092 bytes
SHA-256: c42ddc52594bb1b1147f846c126bf170ce8763f7029b88f31e537a748176ead9
font_02_sfnt_off00007b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B1C 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off0000850c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x850C 17880 bytes
SHA-256: 763a279f2e0add0b56df695f97d6505090abcec5b7b78d86e36389e159d88274

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