PDF malware analysis — malicious · e820049e2dbaffec

MALICIOUS

PDF

33.6 KB Created: 2021-07-19 03:19:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 07869e2861c9932fce47c9563ea86a20 SHA-1: d09e3623531a9b18872a284b6e884558b734c943 SHA-256: e820049e2dbaffec815a3e1033ee8adb9181dccccb2bfd97e77363109401fc33

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, including one explicitly identified as malicious and associated with 'game hacks' and 'free generators'. The document body, though partially corrupted, contains a reference to a similar URL, reinforcing the lure. The presence of embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or malware downloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9942

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/431946152/free-robux-giveaway-game-hack In PDF document text
- http://lookpaineis.com.br/images/free-robux-survey_GM431946152.pdfIn PDF document text
- http://lookpaineis.com.br/images/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- http://lookpaineis.com.br/images/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
- http://lookpaineis.com.br/images/free-robux_GM431946152.pdfIn PDF document text
- http://lookpaineis.com.br/images/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
- http://lookpaineis.com.br/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- http://lookpaineis.com.br/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
- http://lookpaineis.com.br/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
- http://lookpaineis.com.br/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
- http://lookpaineis.com.br/images/minecraft-free-download-windows-10_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_off00002dcb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2DCB	22240 bytes
SHA-256: `c9d0d0dda78a7e39c5507e5bb909282423f225eb31bb14113402796eed396065`
`font_01_sfnt_off00005f1f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F1F	19004 bytes
SHA-256: `53c681b56d2aeec96b089841d9ffc48036577cfa01866e40d4f9479265023228`

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