PDF malware analysis — malicious · 5634dd3a90f73275

MALICIOUS

PDF

36.6 KB Created: 2021-07-08 21:30:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 2412d72cba74f850c4d2c9357e3bba82 SHA-1: 6a5960530597343afa22f205d06cf4824b189e28 SHA-256: 5634dd3a90f732757e346eb935f6f9c00a2510388741927f29a5bec078aa477c

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game generators and hacks to entice users. It contains multiple links, including a primary malicious redirector at http://netcdn.tw/app/406889139/free-spin-coin-master-iphone-game-hack, and a large number of SEO-optimized PDF links hosted on e-learning domains. The presence of these links and the overall structure strongly suggest a phishing or scam campaign aimed at driving traffic to potentially malicious sites.

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/406889139/free-spin-coin-master-iphone-game-hack In PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-credit_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-robux-rbx-tools_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-cute-girl-clothes-roblox_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/how-to-hack-money-in-roblox-games_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-roblox-script-executor_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games-on-mac_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/roblox-download-pc-free_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/master-hack-coin_GM406889139.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
- https://e-learning.man1boalemo.sch.id/__statics/gudangsoal/files/free-minecraft-skin-maker_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
`stream_002_off000038c1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x38C1	23040 bytes
SHA-256: `1ec14bf62f5df88fe8daf6f2a42df5946956bc8bcb1fe5a5bcacf971cda3dc37`
`font_01_sfnt_off00006c8d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C8D	18340 bytes
SHA-256: `93824d9e1aceb83fcadc57d2324abd39ea6cbc22d65f7f2951186cf0df80c271`

Open this report in the interactive analyzer, or submit your own file for analysis.