Malicious PDF — malware analysis report

Static analysis result for SHA-256 77b8b9c89fd76d90…

MALICIOUS

PDF

2.02 MB Authoring application: Skia/PDF m150 Google Docs Renderer First seen: 2026-05-20
MD5: a1b33eca044c80c7e79ad991b008b6d6 SHA-1: 850b1953d23fbf3ba099ccac97fedff86f2bcb97 SHA-256: 77b8b9c89fd76d90c6372e1ecdf7994d4004c697f9acef18c0ab3d9ccda6f682
66 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0023

Heuristics 4

  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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://5debdre4s0m6dz3jum1dlsxo30.hop.clickbank.net PDF link annotation
    • https://5debdre4s0m6dz3jum1dlsxo30.hop.clickPDF link annotation
🗂 Part of campaign: hop.click 54 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00000326.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x326 349848 bytes
SHA-256: 0b68c76c2eeee8ca2d52b61dd2cc1a1b52b6ff7d1c7324da6f7a94469647f3aa
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.60, consistent with packed or encrypted content.
stream_004_off000514e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x514E7 638676 bytes
SHA-256: 10a047902c62442d429253570987fad613b2e0fabf436cf3891856582ff94515
stream_006_off000c14b9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC14B9 611556 bytes
SHA-256: 489b7761f8d91b3891d38cd318812847f1d8c9f52c0b87c7f9d243848bef2d24
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.61, consistent with packed or encrypted content.
stream_009_off0013f77f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x13F77F 408156 bytes
SHA-256: 6e092989f2fc28ed2aab5bc3db0b932f9dc62baf0f1479e50552aa082fcd1fa2
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.41, consistent with packed or encrypted content.
stream_012_off001852f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1852F4 611556 bytes
SHA-256: 6addc4ae8b09710a2616d356feb27fdb62fb5b0a1255698f71bb0c411f2fdfe1
icc_00_off0000014f.icc pdf-icc-profile PDF ICC profile at offset 0x14F 536 bytes
SHA-256: d9f822e8083f2f4d1c91e887454be5f75e8c7144b2853408f361e3c4a7a6b36d
font_00_sfnt_off001f7bc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F7BC6 57100 bytes
SHA-256: f8e8fd30c0c0024ae21cf6a526f22519801975f61385bd18a281d08100ba8a6f
font_01_sfnt_off001ff798.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF798 36132 bytes
SHA-256: b3eb3ee8b538332ad2f924c1906635fd08688655d6f8a08a03de21f9b543d8c9

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