Malicious PDF — malware analysis report

Static analysis result for SHA-256 922e34703c0edbb9…

MALICIOUS

PDF

39.6 KB Created: 2021-05-21 19:00:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1a3eaa5b3de79130942621d0c30b7180 SHA-1: 9fcb1c3376ad54fa114a18bbfb498e34a8200a21 SHA-256: 922e34703c0edbb95ba5aeb5ae6c7ed9026256bde5c1c1d1cbf88ca7910ae1cf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on a 'free spins coin master hack' lure. The heuristic firings indicate that the PDF links to a redirector for game hacks, and the ML classifier also flagged it as malicious. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to a malicious site, likely for malware download or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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/406889139/60-free-spins-coin-master-game-hack PDF link annotation
    • https://ogm-goettingen.de/images/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • https://ogm-goettingen.de/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/free-robux-net_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-hack-android_GM406889139.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003751.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3751 24508 bytes
SHA-256: b213eb44388b44c749ed00977dbae0d61db2a9e8f6d264e0c24494a74f1fc654
font_01_sfnt_off00006fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAD 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00007997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7997 18224 bytes
SHA-256: c1ecca62003467cdf8c5fbac224d7e39febf20c3e1f0cb28698ef381036d4826

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