Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c5eaa02d80294be…

MALICIOUS

PDF

34.7 KB Created: 2021-07-01 23:14:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0a3253aedb287483b3bb3e44a0b8e02d SHA-1: c8f50e4d1cc4ca3fd3ba5d801f7cc9747eebfde0 SHA-256: 1c5eaa02d80294be5993f9087c7e44a118bfc1d36b019a4196d7ef3b706997f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as "game hacks" or "generators" to entice users. The document body and embedded URLs suggest a lure for free in-game currency or similar cheats. The presence of multiple redirector links indicates a strong intent to lead the user to a malicious site, likely for further payload delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/406889139/working-coin-master-hack-2021-game-hack In PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/how-to-hack-in-robux-march-2021_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/denis-how-to-get-free-robux-im-not-even-kidding_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/coinmaster_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-robux-cards-tk_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/coin-master-free_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-roblox-music-sound-ids_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_off00003070.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3070 22972 bytes
SHA-256: 585033527e09b5eaba4479b130bc55c20ccf47d664689bd9d84bceb085f2b54c
font_01_sfnt_off000063ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63ED 18604 bytes
SHA-256: ca9da6d68fac19d10b0af569e3839646c035d047714faa06f15c7475283719a2

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