Malicious PDF — malware analysis report

Static analysis result for SHA-256 9072f0ccd1182a1e…

MALICIOUS

PDF

33.9 KB Created: 2021-07-03 14:22:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3857af3b9da0f04ea357342af94f022d SHA-1: 498236205d4f1bb759cfe46cd0bee0795dd2424d SHA-256: 9072f0ccd1182a1e7d79f297c16910aef023b853384e0ca903e76948b4010ad4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically designed to lure users with promises of Roblox game hacks and currency. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting. No scripts were extracted, but the presence of malicious links and the lure indicate a high likelihood of a phishing campaign.

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.tw/app/431946152/roblox-re-game-hack In PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/how-to-get-free-robux-2021-no-hack-easy_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/free-money-in-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/roblox-cheat-engine-fun-commands_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/roblox-download-free-app_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/cool-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/free-robux-website-safe_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/a-hack-to-get-the-bage-admin-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/free-roblox-stampycat-tshirts_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/blox-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/roblox-how-to-get-stuff-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/cheat-engine-tutorial-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/roblox-rewards-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/which-are-the-best-free-level-7-exploits-for-roblox_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000301c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x301C 22088 bytes
SHA-256: 710f5a3c58d89cd2cfe24dc0e418fc66ee80c9e4ac187afaf3cb1538c67df52b
font_01_sfnt_off000060e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E2 18484 bytes
SHA-256: 9f3d5f952a5a8565a36a95a9616e220af72e779ac4925ec2f8c0411011cafdf3

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