Malicious PDF — malware analysis report

Static analysis result for SHA-256 278f204bc46f4262…

MALICIOUS

PDF

44.8 KB Created: 2021-05-17 04:05:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 0b06638dbb12ab8dc5f4378fe1a4064c SHA-1: 076f06ef4feb03ee15d3dfe8b9abbc5028bce20e SHA-256: 278f204bc46f4262ba5b1e2db46f2a968104976cfb290cddfa7fad9629f7308a
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a malicious URL disguised as a Roblox promo code generator. The document body and heuristics indicate a lure for a 'game hack' or 'free generator', which is a common social engineering tactic to trick users into visiting malicious sites. No scripts were extracted, but the presence of malicious redirector links strongly suggests a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0115

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-promo-codes-free-robux-game-hack In 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_003_off0000357c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x357C 26504 bytes
SHA-256: 4d7a77ce5bd9a4aae38125b081da23bf502a214f3048c4261dd41593dce6cb7f
font_01_sfnt_off000072fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FE 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00007fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA0 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off00008cb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB2 18676 bytes
SHA-256: 3ed324e585500d41944ebd93500991c566830021fec9c5a8323b790459c3443f

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