Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b10fc8d20cf6de0…

MALICIOUS

PDF

33.5 KB Created: 2021-07-23 16:01:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1806d225760e25b273fdb436120551ba SHA-1: a54ee45f2cfc8377834f92f1a03dbb176de89f5a SHA-256: 8b10fc8d20cf6de085837da89bce20acec1f44804d4d6e760d65fb432d32a28f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'robux generators'. The heuristic firings indicate that the document is designed as a lure to trick users into visiting these malicious URLs, likely to download further malware or engage in fraudulent activities. No scripts were extracted, but the presence of malicious redirectors and the lure content strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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.tw/app/431946152/how-to-hack-roblox-game-hack In PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.approachpeople.com/wp-content/uploads/fsqm-files/free-spins-coin-master-2021_GM406889139.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_off00002cc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC7 22956 bytes
SHA-256: 6e6526268b428bef9505da657d01179b25538b091ad766adb266e741fa7dd00d
font_01_sfnt_off00006029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6029 18532 bytes
SHA-256: e43404e6210dd1b6db886e02177179806245dbc9d668ada1920a62956b1e0403

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