Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c15eeb808a31f2…

MALICIOUS

PDF

41.7 KB Created: 2021-05-21 18:16:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: cd73856485b71133cb07ac6e63b88b36 SHA-1: 7949d8ce0c7163cdff5d9572f9fb852374095899 SHA-256: a7c15eeb808a31f2605efaa0bdb687168efa137c565dc3acb9bfe7363d84f1dd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious websites, masquerading as game hacks. The document body explicitly mentions 'Roblox Adopt Me Hack' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', indicating a social engineering lure. The embedded URLs and heuristic firings strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7466

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/roblox-adopt-me-hack-game-hack In PDF document text
    • http://zarinnameh.ir/images/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000342d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x342D 26392 bytes
SHA-256: 7aba074ff125cdc0e35a795c646245f3e19fa2c4c4c95217ee26f1466de6f173
font_01_sfnt_off00006f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9E 4660 bytes
SHA-256: b8980cdac4d025496d9fe039d8c05bb5b9bae1b804244a1f9c05e9663db72816
font_02_sfnt_off00007fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAE 18832 bytes
SHA-256: 4d658ccafa0b893d8d7fed2f8c747f895118d61cffd562c1959dd86f9709654a

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