Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d18e6e22c81212d…

MALICIOUS

PDF

43.3 KB Created: 2021-06-13 23:33:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d57c0185c8a940a4786774b682bb9719 SHA-1: 2eb115f183ecd564cd21a6992b016601ae1abf7a SHA-256: 0d18e6e22c81212d9b4a4bff45a4df61780c51dac76d33db5902ceb8015f7cb5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains lures for game hacks and free in-game currency, directing users to a malicious redirector URL. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to lead users to potentially harmful content or downloads. No scripts were extracted, but the document structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.co/app/431946152/hack-para-roblox-final-stand-game-hack In PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/ispoofer-pokemon-go-free-key_GM1094591345.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/javascript-free-robux_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/wurst-mc_GM479516143.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-cheat-in-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ac3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC3 25208 bytes
SHA-256: fd32e259f13de2599e2d1e97102aaf2a060a2d9d086c83f27e41af1b004a7261
font_01_sfnt_off00008534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8534 18896 bytes
SHA-256: 1867a0917de18ab84e9f4718e3cae272c4817b8cfa5b3a04ac552703753791d0

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