Malicious PDF — malware analysis report

Static analysis result for SHA-256 8946c4b9c9890f13…

MALICIOUS

PDF

43.6 KB Created: 2021-06-08 08:43:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 86671eb97ede4000eb4da07420fd412c SHA-1: e32b196a47579cd4fcc73fb6b20b207e042b2dc6 SHA-256: 8946c4b9c9890f1335e294eed7f07856cfc3e540d3964776469a076c08de2c4b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures for Roblox. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9939

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.tw/app/431946152/how-to-look-cool-for-free-roblox-game-hack In PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/roblox-account-has-been-hacked-and-password-has-been-changed_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/https-free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-get-2021-robux-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-get-robux-hack-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-robux-from-surveys_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/hackeando-mi-saldo-de-roblox-sin-pagar_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/top-ten-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-roblox-bandit-siimuator_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-speed-hack-on-roblox-kick-off_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-roblox-game-publicity_GM431946152.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://elearning.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-say-the-f-word-in-roblox-without-hacks_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_004_off00004c03.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C03 26120 bytes
SHA-256: d6b8798bcfcf7e6474aeaec753a2699ee6a83fc0094b1c75f04b7309301c2200
font_01_sfnt_off00008830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8830 18280 bytes
SHA-256: fc8549d499aa9e5cb8fefdc7c9746b745a966d9182fac0f371b0130b530195aa

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