PDF malware analysis — malicious · a417d3b7655a8252

MALICIOUS

PDF

33.2 KB Created: 2021-07-04 11:04:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: ad66c72477a227f3685125c7a10703b4 SHA-1: ac776d2fcf3fcd24e1d788901f840543c2636a71 SHA-256: a417d3b7655a8252345157fd50b55a35ff335f6c2d1a6304cddfa4fd2b683ad9

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-hacks-list-game-hack PDF link annotation
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/minecraft-realms-free_GM479516143.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-t-shirt-deacls-roblox_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/free-robux-robloxbloob_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/comment-cheat-sur-roblox-dbz-final-stand_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/roblox-strucid-free-skin-tutorial_GM431946152.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/free-account-generator-roblox-with-robux_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-roblox-cheat-injectors_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/develepor-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/how-to-get-free-roblox-on-the-robux-2021_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/adventure-by-cheat-codes-roblox_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-get-free-robux-card-codes-parody-of-robuxian_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003009.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3009	21768 bytes
SHA-256: `b1a1544c6484fcccc2f874335c492a3d8283e860a4677b20b04f042d4269bef1`
`font_01_sfnt_off00005fdc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FDC	18024 bytes
SHA-256: `b225453983b0d4b7b59ed967647751f27ffd76b719c1a81b68b4b34d029f1afd`

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