Malicious PDF — malware analysis report

Static analysis result for SHA-256 800e9a497a435cac…

MALICIOUS

PDF

38.0 KB Created: 2021-05-15 22:33:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 78cad79409c7d702b68451bac2b6f2c0 SHA-1: 20bca57a26b6ad168464f67fb468f75512056501 SHA-256: 800e9a497a435cac6de9a5935fb172b42772b5113eb4a26c637da01fedc14193
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier clean score 0.0126

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/free-spins-coins-coin-master-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000333d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x333D 24132 bytes
SHA-256: f0c0b50da6fa03f328e15b457778a74ba26c7c7ae8001e29f602ad2f15cc624e
font_01_sfnt_off00006a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A13 2956 bytes
SHA-256: cc6ee08a5af07cdf809d5f718a6f4b581fc47059b13d069ac995502e41039ee4
font_02_sfnt_off00007436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7436 17884 bytes
SHA-256: 18816d8d761583b578c9833b8849e2eeaed27ef2f16a893d2032c58e3f8148b6

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