PDF malware analysis — malicious · dbcf532ba2c0dac9

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 04:26:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 66a3c2ba7e58f78581cf224004c141b6 SHA-1: aabc5989aa244ceccd2b5fef7a49225483262cf1 SHA-256: dbcf532ba2c0dac930a2fe503dcc48fd80a62ef09e0bb6b3972e3d7165138627

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

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/479516143/minecraft-hacks-wurst-game-hack PDF link annotation
- http://africanearthgroup.com/uploads/files/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-nike-outfits-for-roblox_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/hacker-un-compte-sur-roblox_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/free-robux-wheel_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/free-robux-cash_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- http://africanearthgroup.com/uploads/files/files/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
- http://www.africanearthgroup.com/uploads/files/files/coin-master-free-rewards-link_GM406889139.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_off00003231.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3231	22576 bytes
SHA-256: `35d10c3864a683ca48a2f44712ec1ad41cfc8fe769f1285dcb3a976cad484a00`
`font_01_sfnt_off0000641f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x641F	18364 bytes
SHA-256: `521d9e21ddb37bcf50fca8719f17a590544ab37de3ab7ae08bd463770fa05be1`

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