Malicious PDF — malware analysis report

Static analysis result for SHA-256 01cb587d811c7993…

MALICIOUS

PDF

41.9 KB Created: 2021-05-13 23:02:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: cad4ec882db8dee661da7a2ced39168b SHA-1: 78dd5259a5e7d607eb5efcd9e0b36ba35ce7456d SHA-256: 01cb587d811c79931eb2d0c38a25208b8bec95ef8cf98ffa585747c689465823
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links to known malicious redirectors and lures users with the promise of game hacks. The primary link directs to a URL associated with a 'coin master daily free spins and coins link game hack'. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the embedded links are sufficient to indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-daily-free-spins-and-coins-link-game-hack In PDF document text
    • http://kita-sunshine.de/images/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-do-you-get-free-robux-on-roblox_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_003_off000046fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46FA 25348 bytes
SHA-256: 792c393f820b1efa0bf4ecab63552fdaeeefabdf77127abb69094d1ae63f6e13
font_01_sfnt_off0000803c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803C 18652 bytes
SHA-256: 9153e8ff570dd88c4a620839e4728b6040b622f618f6f7694a5530f56d9e896e

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