PDF malware analysis — malicious · 8567746e7a86986f

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 16:21:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31

MD5: cbc23eb2180056ca3c88165f7b8b07ba SHA-1: a4f96cde9aeeb92ab098842b2c811c8a6d806a08 SHA-256: 8567746e7a86986fc83a3b08e3a2838d51abfa3ffc26234612472b4360fa427c

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a lure for game hacks and currency, directing users to a known malicious redirector URL. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely intended to download and execute a second-stage payload, aligning with common phishing and malware delivery techniques.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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/406889139/get-free-spins-coin-master-2021-game-hack In PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/where-to-buy-pubg-uc-cheap_GM1330123889.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/roblox-hacker-skin_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/robux-link_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/roblox-magic-training-wand-free_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/free-roblox-promo-codes-for-robux-2021_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/coin-master-rewards_GM406889139.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/free-roblox-builders-club-card_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/como-hackear-super-dragon-ball-heroes-en-roblox_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-noe_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/get-free-robux-generator-parts-pokemon-silver_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/no-human-verification-free-robux-generator_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/nonsense-roblox-cheat_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-mod_GM431946152.pdfIn PDF document text
- https://www.soil2soul.ae/uploaded_files/userfiles/files/free-old-roblox-accounts_GM431946152.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_off0000333d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x333D	22816 bytes
SHA-256: `16b7a9fa6f3d411967d278f1063eb5e0c37e19c5a9d82ea59f678572d9a961df`
`font_01_sfnt_off000065d4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65D4	18576 bytes
SHA-256: `47068641d4cd5afad495b2744cbb78709b2a1d88425159384b1e35df59296f67`

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