Malicious PDF — malware analysis report

Static analysis result for SHA-256 60526b84065b2ed2…

MALICIOUS

PDF

42.9 KB Created: 2021-05-17 02:32:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: a228a61293e7e2b3552af2eaa29e9038 SHA-1: e02dbd101c24ef7f948e1ba4ab0a295d609cbf72 SHA-256: 60526b84065b2ed20a4f4dd0119dbf587a1a4066a32c3471feb6c72261a482ec
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a 'game hack' generator and others to a large link farm hosted on de-licht.com. These links are indicative of a lure to a scam or phishing site, likely distributed as a spearphishing attachment. The document body, though partially corrupted, contains text related to earning Robux and a URL, reinforcing the lure theme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/ways-to-earn-robux-game-hack In PDF document text
    • https://de-licht.com/image/data/files/wurst-18-9_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/robux-miner_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/minecraft-ps4-code-free_GM479516143.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_off00004a03.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A03 25508 bytes
SHA-256: 927786b4b229718712b616407cd19eebb2996665e70ce5acb9aeeab86bcb5609
font_01_sfnt_off000084bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BF 18456 bytes
SHA-256: a97dc755a6f2d2ed213355e04e982d1291fa69ee2bd0a77560176eb39858d63d

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