PDF malware analysis — malicious · 17232be8f793a5bf

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 13:46:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 0aa5898ab4801306c1f70ef04d566fde SHA-1: 3a6df7bda924865e45d4259a6802334354730f2c SHA-256: 17232be8f793a5bfc204d5a70549a82ab957c2bc810d651621c336174225e892

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/431946152/free-robux-no-verification-or-survey-game-hack PDF link annotation
- http://africanearthgroup.com/uploads/files/files/developer-console-script-roblox-hack_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/how-to-get-minecraft-java-free_GM479516143.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/pokemon-go-basic-vs-premium_GM1094591345.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/how-to-get-free-robux-2021-no-survey_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/free-robux-earn_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/www-roblox-robux_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/pubg-uc-zain_GM1330123889.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-gift-link_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/best-free-script-executor-roblox-beginner_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/roblox-html-hack_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/comment-activer-cheat-code-roblox_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/roblox-robux-free-2021-fr_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_off00002eb8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EB8	22216 bytes
SHA-256: `1f52aff32eaf607aa7419a30d963b9ab88250103db95e5791a96bd104fc490e1`
`font_01_sfnt_off00006021.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6021	19368 bytes
SHA-256: `551afc8435a3263a9a14f68c6fac56cdd03dabd4713ff120a4b3cc718d9f39ef`

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