Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ae197e6d6807cdb…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 14:29:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 01ea6a92923448d7aedf6c4b2488ea26 SHA-1: 18a5e6579328e6f5e2f3df59a77a91c848115524 SHA-256: 6ae197e6d6807cdbf0d63bd94f475eb3ac652651aede7fee4c273eb29f21446a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, that promise free game currency or hacks. The document body and embedded URLs suggest a social engineering lure designed to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts. No scripts were extracted from this sample.

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/406889139/coin-master-free-spins-facebook-game-hack In PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/how-to-hack-jailbreak-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/roblox-ben-10-games-for-free_GM431946152.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/pubg-uc-shop-bd_GM1330123889.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/how-to-get-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/how-to-hack-peoples-account-roblox_GM431946152.pdfIn PDF document text
    • https://ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/free-robux-hack-2021-redeem-card-codes_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
stream_002_off0000329d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x329D 22624 bytes
SHA-256: fc6ca6944299216125b32e9fa2a612ba6069d6a953d484160cb7fd5077a2659e
font_01_sfnt_off000064ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CA 18504 bytes
SHA-256: 60d2bdc76bcd03856ff56843c76a1045165bedbcd3c7078909a454fabf5c0968

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