Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb741e7aed23accd…

MALICIOUS

PDF

43.6 KB Created: 2021-05-11 06:32:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 43d29002b2da476c6809800f11c154d1 SHA-1: fdf005b89ae4050e3ed680b7b10016ee2f1fa372 SHA-256: fb741e7aed23accd220116e3ac647a5ba7361dd0b7d7912021c556263b9ced16
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, disguised as a 'free generator / game hack' lure. The document body and embedded URLs suggest a phishing attempt related to popular games, aiming to trick users into clicking through to potentially harmful sites. No scripts were extracted, but the presence of malicious redirectors and lure content strongly indicates a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/479516143/is-minecraft-free-on-xbox-one-game-hack In PDF document text
    • http://arkivthy.dk/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/roblox-army-robux_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_003_off00004d61.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D61 26912 bytes
SHA-256: 9627d1aeeb19023e04a45fbef45c1bfb1a62485057de0c684b6938417a04f786
font_01_sfnt_off0000883f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883F 18304 bytes
SHA-256: 19d9535fd2d352d2586ba99854d4ae80d513f2901e16ae506060a78b50b635a9