Malicious PDF — malware analysis report

Static analysis result for SHA-256 d75c872661f4a496…

MALICIOUS

PDF

55.7 KB Created: 2021-05-10 14:30:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d457313cf2ccd0e6ef71d067c2d04ec5 SHA-1: 2f944a6509e18aae628503c88ed524aad705dcff SHA-256: d75c872661f4a496f5366b8cc9917a7b362f847c6cf6417f89e96793607910c2
102 Risk Score

Malware Insights

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

The PDF document contains multiple links and heuristics indicating a lure for game hacks and free currency. These links redirect to external sites, one of which is an IP address, suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8407

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/coin-master-free-spins-2021-game-hack PDF link annotation
    • http://183.91.70.7/repository/free-coins-and-spins-coin-master_GM406889139.pdfPDF link annotation
    • http://183.91.70.7//repository/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://183.91.70.7//repository/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://183.91.70.7//repository/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://183.91.70.7//repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/robux-premium_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/roblox-fun-robux_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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ab9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB9 26808 bytes
SHA-256: c1c27c74a45033d84a5f3e4b67cc9a9c63c3bc94a8beed48ed507144be871f18
font_01_sfnt_off00008a1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A1A 3232 bytes
SHA-256: fc47885898e00b4bfd7236352f616995a7674a1bc72c954a414de2c300e5c156
font_02_sfnt_off00009578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9578 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000a89e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA89E 18288 bytes
SHA-256: 9f7609fba99e53c6baa99bb04d1c7e3f9b7167131c1520eb2a413cdab4a14871
font_04_sfnt_off0000cab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB8 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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