Malicious PDF — malware analysis report

Static analysis result for SHA-256 702845a58c540119…

MALICIOUS

PDF

43.6 KB Created: 2021-05-10 21:02:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 321a14391ab4664702eea5d930edeaeb SHA-1: 916d1c76a935aa407460c6763d0c88a962415ade SHA-256: 702845a58c540119a79002f3752c1f9696b2a1f74b367a4d5c27bb7f1d8588f1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically targeting users interested in game hacks and free currency. The document body and embedded URLs strongly suggest a lure for users to click through to potentially malicious websites. The presence of multiple redirector links indicates a deliberate attempt to lead users to harmful content, likely for phishing or malware distribution.

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-no-human-verification-game-hack In PDF document text
    • http://cacpglobal.ca/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://cacpglobal.ca/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-free-spins-link-2021_GM406889139.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
font_00_sfnt_off00004a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A84 25948 bytes
SHA-256: f8c0de0a9f823aed506c4797fa3dd0e2ce7a155b2dace86663c3ba6736e51c19
font_01_sfnt_off000085ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85FF 19024 bytes
SHA-256: add4238412854312c544fb77f8d10d54d15c3f72dfb550af23f9090805c2c756

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