PDF malware analysis — malicious · c3842d634f9bb83c

MALICIOUS

PDF

32.9 KB Created: 2021-06-21 22:28:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 8c7861358faec2b389e3a5d4dbe25fbd SHA-1: 0e068068d310ba001e56f396e67a19a06c212e5e SHA-256: c3842d634f9bb83c4eb30ec915c3d6a54c0425e499cb3310fe7d6d41876a6ff6

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 0.9824

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.co/app/431946152/how-to-change-your-name-roblox-free-game-hack PDF link annotation
- http://www.homesweethome.pl/images/100-working-free-robux-hack_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-hack-programers_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-role-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-booga-booga-hack-installieren-deutsch_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-hack-weight-lifting-simulator-2-roblox_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-cheat-code-dice-for-elemental-war_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-get-free-broken-egg-in-roblox-rpg-world_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-get-free-robux-wikihow_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-items-in-roblox-games_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-get-stuff-that-cost-coins-free-mcpe-master_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_off00002ad5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2AD5	21716 bytes
SHA-256: `7b0de069dff8b931419eff0f1808b21ee1f69567ce2a8a0ae0dd8c2cfbc88a5b`
`font_01_sfnt_off00005a78.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A78	19540 bytes
SHA-256: `e6ded80e66411e69ca2215e5610d81cf54fc351faaf8b1848d721f06f243fc0d`

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