Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa5469650963e3ad…

MALICIOUS

PDF

34.0 KB Created: 2021-06-20 07:22:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c5f4b3ee3c0075399a6b4e346d78699d SHA-1: 094384d39cb54d3ccc2cd2ce5ded179acc19bb4c SHA-256: aa5469650963e3ad0781e4ceb8064ee542038416a0184b57f63dfcf1f4413f61
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one prominent URL identified as a malicious redirector. The document body and heuristics indicate a lure for game-related cheats or generators, aiming to trick users into visiting the malicious link. No scripts were extracted, but the presence of malicious redirector links and the lure suggest a phishing or malware distribution attempt.

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/free-coins-generator-roblox-high-school-2-game-hack In PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-download_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-free-bucks-in-adopt-me-roblox-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-1m-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-shoulder-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-free-items-not-models_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/wild-savannah-roblox-how-to-change-colours-hack_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/hack-cruise-ship-tycoon-roblox-money_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/robux-free-com_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_off00002f4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4D 22012 bytes
SHA-256: ea543aa74da7aa51e95c3062ca48a00205aaa37dcfbef6e91ec340b3c8c0ed9f
font_01_sfnt_off00005fb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB5 19164 bytes
SHA-256: 7f81a183609df8e5d213f865165f500aa65b18be66f01009c537b170636c70a1

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