Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ae85026da3de76…

MALICIOUS

PDF

42.8 KB Created: 2021-05-19 11:14:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7b9b5c21ba5e8305d1c45e8c752d5b91 SHA-1: 7ca0bbb206e8d9a1090c2cdf9e0b0eccbf9f9c1c SHA-256: 14ae85026da3de76aff680890517deadac344ea5936b4f876ea0800d18422743
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering 'free generators' and 'game hacks', which is a common lure for phishing or malware. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically flags these types of links. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to redirect users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/free-robux-gift-card-game-hack In PDF document text
    • https://www.shin.ge/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/get-more-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/daily-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-person_GM431946152.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.

FilenameKindSourceSize
stream_003_off000048f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F4 25896 bytes
SHA-256: 06e84308b11436c27c871045040d679d7a099dda6abd4fe42c44dd104d2b9505
font_01_sfnt_off000083b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B1 18640 bytes
SHA-256: 59f1432744b9d8cf879cb7c8a299bbbbba85d5427cd565107f85277265ec050e