Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce7d19f362b9103f…

MALICIOUS

PDF

35.2 KB Created: 2021-06-27 09:41:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4ae7947bb759593fae6fdf814984f87b SHA-1: acf5057a9a89017d77789beb309b8da25be1a9f9 SHA-256: ce7d19f362b9103fb50231ca947b38c6a84e6502dc44e824f201f49c9c77c3e1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and free currency, such as Robux. These links are flagged as malicious redirectors, indicating a likely attempt to lure users to potentially harmful content or phishing pages. The document's content and structure strongly suggest a social engineering lure for malware distribution or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-do-i-get-free-robux-on-roblox-2021-game-hack In PDF document text
    • http://perpus.polimarim.online/repository/all-about-me-robux-free_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-hack-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/cheat-code-farming-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/hackear-roblox-escape-prison-traspasar-las-paredes_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/point-prizes-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-cards-pin_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-pet-treats-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-hacking-jailbreak-unlimited-money-omg_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/minecraft-tools_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/new-free-robux-unlimited-free-robux-no-save-buy-proof_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/pubg-uc-or-g_GM1330123889.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
font_00_sfnt_off0000307b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307B 22464 bytes
SHA-256: b384b43f356a52aaddd750ae234241f9b69511e63b6f2d79b828c990e9cbd766
font_01_sfnt_off000062c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C0 19628 bytes
SHA-256: 8da26124d78d26af6b69837f5d93aa985c57908c32a8e1faac649b7d87dd6706