Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab529f81d9354e5…

MALICIOUS

PDF

43.3 KB Created: 2021-05-15 16:15:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7dd1621800b530075e79759ca9269d3b SHA-1: a5c372455281143b0c0d234fd2821b09a270d631 SHA-256: 5ab529f81d9354e534232b135f40ae9098462a367d02b4aa08764858357d1c50
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising free game currency or hacks. The heuristic firings confirm these links are associated with malicious redirectors and game hack lures. While no scripts were explicitly extracted, the document body and embedded URLs suggest a phishing or scam attempt to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/give-me-free-robux-game-hack In PDF document text
    • http://plastic-surgery.pl/images/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://plastic-surgery.pl/images/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://plastic-surgery.pl/images/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • http://plastic-surgery.pl/images/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://plastic-surgery.pl/images/wurst-112_GM479516143.pdfIn PDF document text
    • http://plastic-surgery.pl/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • http://plastic-surgery.pl/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • http://plastic-surgery.pl/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://plastic-surgery.pl/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/roblox-generator_GM431946152.pdfIn PDF document text
    • http://plastic-surgery.pl/images/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://plastic-surgery.pl/images/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://plastic-surgery.pl/images/how-to-get-free-robux-for-real_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_003_off00004acd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ACD 25608 bytes
SHA-256: a25802b2ba44418540aba3f646b8b728c4f72b6ea85961b058550759c53c3a17
font_01_sfnt_off00008668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8668 18444 bytes
SHA-256: 68319dbf483afe81c5a4de3b3f5290fc223d358c0f75f000dd988daf46eb7eae

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