PDF malware analysis — malicious · 154ed3334a706aeb

MALICIOUS

PDF

33.8 KB Created: 2021-07-21 05:20:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 14a8e433ad1ca1d8168ee5b14d6099c6 SHA-1: 69fc02a774b9bd54248ac89a1bca857bb89ac8b4 SHA-256: 154ed3334a706aebd064c8753e431094c0eb489f0e69f8e8be5b3b09db1278ff

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free accounts and game hacks. The heuristic firings indicate the PDF is designed as a lure to a malicious redirector. While no scripts were explicitly extracted, the nature of the links and the lure suggest a potential for further malicious activity, such as downloading a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9946

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/835599320/free-tiktok-accounts-and-passwords-game-hack In PDF document text
- https://lita-lb.org/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://lita-lb.org/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://lita-lb.org/images/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://lita-lb.org/images/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
- https://lita-lb.org/images/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
- https://lita-lb.org/images/freer-tiktok_GM835599320.pdfIn PDF document text
- https://lita-lb.org/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
- https://lita-lb.org/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- https://lita-lb.org/images/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
- https://lita-lb.org/images/coin-master-free-daily-spins-link_GM406889139.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_off00002fbc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FBC	22656 bytes
SHA-256: `8de012dbf7e5ea43dc1598fc53683a22794c72685ffad8459f49b2d8d9707722`
`font_01_sfnt_off00006243.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6243	18316 bytes
SHA-256: `bbd6b533d869a7a089323291600526adae2a42e90d5e0cf5c01053f7505e7d8b`

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