PDF malware analysis — malicious · fade3a2fea17757f

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 10:59:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: 15dabb2ccc3cdceaf94903b1b14f6d81 SHA-1: a955f387686690d33772c4f964cc105eefb99ec2 SHA-256: fade3a2fea17757f7534a6ec10951c5c9821aa61f5688d8536f7b5f77fdd7d51

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links designed to appear as free game hacks or generators, leading to malicious redirectors. The primary link, http://netcdn.co/app/479516143/free-minecraft-skins-java-game-hack, is identified as a malicious redirector. The document body and heuristics indicate a lure for potentially harmful content, likely leading to malware downloads or phishing pages.

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.co/app/479516143/free-minecraft-skins-java-game-hack In PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/assasin-roblox-hack-script_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-install-hacking-programs-on-roblox_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-get-game-passes-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/static-moonactive-net-link_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-pizza-place-roblox_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/roblox-free-items_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-copy-any-roblox-game_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-ro-hack-roblox-account_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/roblox-robux_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_off00003225.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3225	21508 bytes
SHA-256: `683d15428d727c5e17ab4f2df19c5df2b6d6a8e3d7dc0e5066a3877a91442110`
`font_01_sfnt_off00006108.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6108	18304 bytes
SHA-256: `401eb49ff2a7bbc2c0a7320b67dbf183b2d718a040190e5e2c5f0615a3ea9473`

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