PDF malware analysis — malicious · 578d3f93a8e43c75

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 10:03:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 4e4358b8b1e29280c48e68784bf3d8bf SHA-1: f8aeaceb93b7ab8e68d98737b83cd72d6607832e SHA-256: 578d3f93a8e43c7592b7fb91d1d4062c20352234afafc023db1f214c42829390

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game items and hacks to entice users. It contains numerous links, including a critical redirector at http://netcdn.tw/app/479516143/how-to-get-minecraft-windows-10-edition-for-free-game-hack, which is associated with malicious infrastructure. The document also functions as a link farm, directing users to a large number of other PDF files, likely for SEO manipulation or further redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/how-to-get-minecraft-windows-10-edition-for-free-game-hack In PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/can-roblox-tell-if-you-are-hacking_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-get-a-free-home-on-roblox-on-rocitixens_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-hack-in-roblox-prison-life-2021_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/logiciel-hack-roblox-robux_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/free-robux-roblox-hack-no-survey-no-human-verification_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/strucid-hacks-roblox-youtube_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/roblox-exploit-download_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/new-free-items-on-roblox-promocode-november-2021_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-hack-any-account-in-roblox-2021_GM431946152.pdfIn PDF document text
- https://stain-madina.ac.id/assets/ckfinder/userfiles/files/rpg-world-cheats-roblox_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_off000032ce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32CE	22248 bytes
SHA-256: `d350193c09654850b98aea399815749cd95c0a8e7b493e532df20c74e068b67d`
`font_01_sfnt_off000063f9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63F9	18812 bytes
SHA-256: `f716e881059f29ffa9bbe1d090f6d126727f740b51ca9620c60dab13ccdfe3d8`

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