Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd1704ff679da3c…

MALICIOUS

PDF

44.9 KB Created: 2021-05-14 15:03:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9066a911e07e3d85cd5295b94cd5f6de SHA-1: c8f45afadb453cada4cc2bfe4121973c0710889a SHA-256: bfd1704ff679da3ce7654f51a55803640c12c99cf685d2a28d99aae32a1eb597
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to external websites, including a known malicious redirector. The document body and heuristics indicate a lure for game-related cheats or currency, designed to trick users into visiting these sites. The presence of malicious redirector links and the overall theme strongly suggest the document is part of a phishing or malware distribution 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 https://netcdn.xyz/app/431946152/free-roblox-gift-card-codes-2021-game-hack In PDF document text
    • http://atrax.hr/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-on-facebook_GM406889139.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
stream_003_off00004aad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AAD 29540 bytes
SHA-256: 50179964482d8569c1d31e26d079234dde086890239e225352e56296e5c69473
font_01_sfnt_off00008af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF5 18976 bytes
SHA-256: da888a05767b354bf4a788b28622fcb1db99041a598c845d67a69c5c37b8a5f7

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