PDF malware analysis — malicious · 853d0ff74dda5e77

MALICIOUS

PDF

35.5 KB Created: 2021-07-01 06:45:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 935005c13f6099c8c8fb1bd2026d0b19 SHA-1: f65645e7c483092102b32985f80876ec41201e3d SHA-256: 853d0ff74dda5e7708fa0e73cedf7bbed827cd4344633ed8c17f86c6e255b8c2

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one pointing to a known malicious redirector, designed to lure users into clicking on "game hack" or "free generator" content. The document body and heuristics indicate a deceptive lure for potentially malicious content, likely involving a redirector to a phishing or malware download site. No scripts were extracted, but the PDF structure and embedded URLs suggest a phishing or redirection attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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
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/479516143/how-to-get-minecraft-for-free-on-tablet-game-hack In PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/how-to-change-roblox-name-for-free_GM431946152.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-game-download-free_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-free-attack-hack_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_off00003621.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3621	22692 bytes
SHA-256: `7d0c92c9f80c3b379ffa34f12b35a78f149b4b306d57d9c20f7529dd98ca6e0e`
`font_01_sfnt_off0000680f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x680F	18396 bytes
SHA-256: `ae0dec2f68f79dd0cedece771f57f6da4b37664bf1150be991697a6d8196cd05`

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