PDF malware analysis — malicious · a23f599dc0a798d4

MALICIOUS

PDF

44.9 KB Created: 2021-05-15 13:58:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 7808210e15aa106a3430b0bea8f5aaea SHA-1: ae7ed8a40bc72829418b1257db6188d36bac6d2b SHA-256: a23f599dc0a798d4bb4a574e1797b0e422f388beacf8fb9d5c575822cd679886

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game hacks, directing users to a URL that likely hosts a malicious payload or scam. The ML classifier strongly flagged this PDF as malicious, and the embedded URL is associated with game-related lures. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick users into downloading further malware or engaging in fraudulent activity.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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/479516143/how-can-you-get-minecraft-for-free-game-hack PDF link annotation
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/what-is-wurst_GM479516143.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-hack-quora_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-survey_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/robux-online_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-spin-coin-master-hacktoman_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
`font_00_sfnt_off00004a82.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A82	25396 bytes
SHA-256: `d5a652f2b34a8908ae0f6012b98397fa10106664260f05346c277909a0dabf0a`
`font_01_sfnt_off000083ba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83BA	2824 bytes
SHA-256: `61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b`
`font_02_sfnt_off00008d60.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D60	18176 bytes
SHA-256: `496991d5a760fd596b7ce23c6639e8b030b747c8e4be97118aa62bfd0f632ec2`

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