Malicious PDF — malware analysis report

Static analysis result for SHA-256 faba83ada4304cb0…

MALICIOUS

PDF

35.8 KB Created: 2021-05-23 17:08:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b7e6df41dbd3adfa7799149325a77b45 SHA-1: 10c2d78712cca96ca154977a782539c1f35b55e7 SHA-256: faba83ada4304cb0068b44a2c0ffd62175c2224847595933b0d276bb1f738291
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body explicitly mentions 'Free Tiktok Followers App' and 'CLICK HERE TO ACCESS TIKTOK GENERATOR', indicating a lure for potentially unwanted applications or further malicious content. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/835599320/free-tiktok-followers-app-game-hack In PDF document text
    • http://sportagon.be/images/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://sportagon.be/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://sportagon.be/images/roblox-data-breach_GM431946152.pdfIn PDF document text
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003068.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3068 26364 bytes
SHA-256: 10d81f52667350e0b16deedd799ffdeec1b3c2acd6ae72980b3d9d0b614e81a3
font_01_sfnt_off00006c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C05 17872 bytes
SHA-256: 34129f1c56e014fb2604607ed740d581eed4f4cd55f156cb19b3173e06165e4c

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