PDF malware analysis — malicious · d91c9f3c9b21bd33

MALICIOUS

PDF

32.1 KB Created: 2021-07-24 18:37:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: ce353984462bed0dd11c4b3d60104a78 SHA-1: 7129e69d129b85e650f1e2236db19794fc0730d5 SHA-256: d91c9f3c9b21bd33b321a6ec1367f37a797d460d4e882319a10bc3db9e6e77d8

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, including one disguised as a 'game hack' lure. The document body explicitly mentions 'Is Minecraft Free' and includes a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action, reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or download sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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 http://netcdn.tw/app/479516143/is-minecraft-free-game-hack In PDF document text
- http://islamkennis.com/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
- http://islamkennis.com/images/free-robux-group_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
- http://islamkennis.com/images/minecraft-free-apk_GM479516143.pdfIn PDF document text
- http://islamkennis.com/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- http://islamkennis.com/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
- http://islamkennis.com/images/minecraft-svg-free_GM479516143.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_off00002d1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D1B	22004 bytes
SHA-256: `8336e8455adfbb347fc455d17c928bf9b616b327f0ffeac40a5de4b174a5ddd0`
`font_01_sfnt_off00005d7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D7D	17568 bytes
SHA-256: `44c16732000c578f47393ad484896351af84166fbd5efffd5af9fb6697599acb`

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