PDF malware analysis — malicious · e4c4704abe6a3e21

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 16:36:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 1cb22fe92244dc54809b4a1c06332acb SHA-1: a98a4fd4279c2a5f602e677b7ffb9baaad7c48f4 SHA-256: e4c4704abe6a3e210d656cc6a6804cf128568517568afb0d920ce092fedbcdf9

90 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game items to entice users to click on embedded links. The primary link, http://netcdn.tw/app/479516143/how-to-make-a-minecraft-server-for-free-game-hack, is associated with a high-severity heuristic indicating a redirector for game hacks. The document body and numerous other extracted URLs reinforce this theme, suggesting the PDF's purpose is to drive traffic to potentially malicious sites or downloaders.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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/how-to-make-a-minecraft-server-for-free-game-hack PDF link annotation
- https://vosco.vn/uploads/vosco.vn/files/free-clothing-roblox-group_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-robux-teleplate_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/roblox-booga-booga-instant-kill-hack_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-roblox-card-twitter_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/pastebin-roblox-hack-script_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/how-to-inspect-and-get-free-robux_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/how-to-get-free-bc-in-roblox-pastebin_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/getting-free-robux-inspect_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/hack-roblox-download-and-install_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/coin-master-online-hack_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-headphones-in-roblox_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/wurst-client-18-9_GM479516143.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-robux-download-for-pc_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/how-to-get-free-stuffs-on-computers-roblox_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/grabpoints-robux_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/kachifpro_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_off000030ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30AB	22404 bytes
SHA-256: `7ea1e9e5889b7aa3adf6624ce5a985303e05245c608435926243d9549d380954`
`font_01_sfnt_off0000622c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x622C	18448 bytes
SHA-256: `b3df4715d3d10d222cd03830af22d55d1fd09053c89107a65193d49beb578ea8`

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