Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab286fb734ca84a5…

MALICIOUS

PDF

47.7 KB Created: 2021-05-19 20:20:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 05a2f09282be44cf86051e906cf9f60d SHA-1: ad63105d1a0afa7924b436eb229b4cc298674fc9 SHA-256: ab286fb734ca84a5ea81b08144bd30fcd385870d78d085c3f56347508d6ada2c
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which are presented as 'game hacks' or 'free generators'. These links likely lead to malicious websites designed to trick users into downloading further malware or engaging in scams. The presence of a link farm and the lure of free game items strongly suggest a phishing or scamming attempt, potentially leading to a second-stage download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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/1330123889/inr-to-uc-pubg-game-hack PDF link annotation
    • https://ccej.lviv.ua/images/how-to-hack-pubg-mobile-unlimited-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • https://ccej.lviv.ua/images/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://ccej.lviv.ua/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • https://ccej.lviv.ua/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://ccej.lviv.ua/images/coin-master-viking-quest-hack_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://ccej.lviv.ua/images/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://ccej.lviv.ua/images/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://ccej.lviv.ua/images/robux-premium_GM431946152.pdfIn PDF document text
    • https://ccej.lviv.ua/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://ccej.lviv.ua/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://ccej.lviv.ua/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://ccej.lviv.ua/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049ca.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49CA 35916 bytes
SHA-256: b2687bea130515dd2ec2c6dce4041067d936ff4864cafcf6123e2e12b7bda80b
font_01_sfnt_off0000995a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x995A 18040 bytes
SHA-256: 85a044d66e00c298bd17aafe4b06d2890ae45290321f3c86576e53cc817e7440

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