PDF malware analysis — malicious · 607305e2d9b0265f

MALICIOUS

PDF

44.7 KB Created: 2021-05-18 01:15:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 535185d692512ba3f5b8aea80f323478 SHA-1: 8b5c97ec66d6694e46d6a1e24af43b091fb1e913 SHA-256: 607305e2d9b0265fdbf9d0bc9a6565f8f69fe9c1db119a4d4d10d3cac160fdc9

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple lures related to game hacks and free currency, specifically for Coin Master and Roblox. It directs users to external URLs that are likely designed to harvest credentials or deliver further malicious content. The critical heuristic for 'Recovery secret / private key request' suggests a strong intent to steal sensitive user information.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

Heuristics 5

Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE

Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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/easiest-coin-master-hack-game-hack PDF link annotation
- http://santeh-40.ru/images/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
- http://santeh-40.ru/images/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/roblox-free-pants_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/coin-master-hack-root_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/coin-mast-hacks_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/roblox-website-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
- http://santeh-40.ru/images/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/claim-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/coin-master-raid-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004a12.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A12	25356 bytes
SHA-256: `04cecee157cbc2fba2e503505e916cfacea65a1248f7032abc7e6ce2eca80cfc`
`font_01_sfnt_off000083f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83F6	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008de0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DE0	17716 bytes
SHA-256: `2777df0864118f7a8b0836e6f140f12d2c0b51bcfdff72c423501d2323673959`

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