Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde594052d05b751…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 21:51:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 71edb953ea25c2006e7df47d3f209557 SHA-1: c7ebd9eaa7c9cba270c7ea08b0aeda2807e6e2fa SHA-256: bde594052d05b751a542cc3563426ce5a25a9c8a5ad60e4aad31e11ce288d490
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on what appears to be a 'Robux Generator' or 'Game Hack'. These links redirect to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs reinforce this lure, suggesting a phishing or scam attempt to drive traffic to potentially malicious sites. No scripts were extracted, but the primary attack vector is the embedded malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • 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.
  • 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/robux-generator-2021-game-hack In PDF document text
    • http://rose-mari.com.ua/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • http://rose-mari.com.ua/images/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://rose-mari.com.ua/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/village-coin_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/robux-giver_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000468d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x468D 25664 bytes
SHA-256: 040dec504b1ea5237f43bc44fae2f49d4fec3fbac65bd370ab89e2ac66158339
font_01_sfnt_off00008294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8294 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00008dbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBE 18584 bytes
SHA-256: 54c01f4636823bab04ead8b034b7e6a977e3ade15c99bbf56eda2a9f45b45d2e

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