Malicious PDF — malware analysis report

Static analysis result for SHA-256 2184ce0f2626db78…

MALICIOUS

PDF

42.7 KB Created: 2021-05-20 23:32:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 21b0be92f892fbd0af82b49ff7cb21d7 SHA-1: 548c440e054349f4de726656d2b7af8c8842b71c SHA-256: 2184ce0f2626db78f3003000693c16b94d32fb538e13cbcd4b6a9473fb7f757c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a "Roblox Free Draw" hack. The document body and heuristics indicate a lure for game-related cheats or generators, which is a common social engineering tactic. The presence of multiple links to similar content suggests a campaign focused on driving traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7947

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-free-draw-game-hack In PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.extrifit.com/uploads/ckfinder/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B0 24920 bytes
SHA-256: d3ae5a665f233f0fb042839837c6af7d6b82171267220c9793ea429c869ebfff
font_01_sfnt_off00006b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B49 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000077ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EC 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off00008493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8493 18508 bytes
SHA-256: d43aad8391cc92c6a460772e2941ce4b971725fdced8eeeb4fc6fe10188b1862

Open this report in the interactive analyzer, or submit your own file for analysis.