PDF malware analysis — malicious · 46cd1d2f8a88e497

MALICIOUS

PDF

48.9 KB Created: 2021-05-13 02:37:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26

MD5: 1e8dcb0f6877902d773bce00d983204f SHA-1: d2e5b8f46a9adabc1c6dcca2c5456a687be0b833 SHA-256: 46cd1d2f8a88e49706265f81ffa22a7920ef900f105eb1983a4e9a9233c18864

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure. The document body and heuristics indicate a lure for free Robux or game hacks, which is a common tactic for phishing or malware distribution. The presence of multiple links to external PDFs suggests a link farm designed to distribute malicious content or drive traffic to scam sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9228

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 https://netcdn.xyz/app/431946152/is-it-possible-to-get-free-robux-game-hack In PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-robux-just-click_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004d66.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D66	27136 bytes
SHA-256: `02e95da9074d56a77e9a41a7d20ac50ba5f0730d470d6f0e8e8f0a604e10cb81`
`font_01_sfnt_off00008be0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BE0	4816 bytes
SHA-256: `e7eb306e8f54a8fa7ed0127ee4a896f2f478938f49f64231aa7d172fe8cae056`
`font_02_sfnt_off00009c7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9C7D	18464 bytes
SHA-256: `524b785793646940a6547919a11f6df6f4967036cf63710b5a4934c88ca16ae7`

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