PDF malware analysis — malicious · 5929a28bf8eb6d8c

MALICIOUS

PDF

34.6 KB Created: 2021-07-10 02:16:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: c8732980167eaf7090cc4bde0ae9c17a SHA-1: d1f1d225457bd01b9fa39a74b73d2a3ab8549cd5 SHA-256: 5929a28bf8eb6d8ccf9b7074c27749cf72015d75ae4cdcbccbae0cb5ccc6d229

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/406889139/coin-master-free-spins-and-coins-link-blogspot-game-hack PDF link annotation
- http://www.sourceit.llc/uploaded_files/userfiles/files/robux-scam_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/btools-roblox-hack-jailbreak_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/hack-para-ayudar-a-la-gente-roblox_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/roblox-gift-card-includes-free-virtual-item_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/how-do-you-hack-on-roblox-prison-life_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/pubg-770-uc-ne-kadar_GM1330123889.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/dragon-ball-fury-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/give-robux-hack_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/pokemon-go-free_GM1094591345.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/roblox-ps3-download-free_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/minecraft-free-education_GM479516143.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-mod-apk-free-download-for-android_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_off00003094.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3094	22568 bytes
SHA-256: `657cc78f63562035b13c8e6317b1a27cf658f0e9f120fcea6068dd5da4c61e4e`
`font_01_sfnt_off000062f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62F1	18808 bytes
SHA-256: `c1f494af37efa3c19b76a788520f3f9c15a1a81de3f38337c7b875dc57d79974`

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