Malicious PDF — malware analysis report

Static analysis result for SHA-256 16491ef424c1890b…

MALICIOUS

PDF

44.2 KB Created: 2021-05-17 12:01:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8d06b1f7f5b275ddf661e7e789e93df5 SHA-1: 8df1c55f082247a40530050f4c7605d50b4be9e9 SHA-256: 16491ef424c1890b860dd06e8523e229925a4ffead1c08ff24c078f413e793ad
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are disguised as legitimate resources for popular games like Roblox and Coin Master. The primary link, 'https://netcdn.xyz/app/431946152/how-to-hack-roblox-for-robux-game-hack', suggests a lure for users seeking in-game currency. The PDF's structure and the sheer volume of links indicate a link farm designed to drive traffic to potentially malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 4

  • 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.
  • 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/431946152/how-to-hack-roblox-for-robux-game-hack
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-daily-free-coins-link-today_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-coins-coin-master-2021_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-coin-master-card-free_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-realistic-minecraft-texture-packs_GM479516143.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-shirts-templates_GM431946152.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-download-free_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-mod-apk-android-1_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/best-way-to-get-free-robux_GM431946152.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/gameoffice-net-hack-coin-master_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spins-coinmaster_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-ios-2021_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hacks-to-get-free-robux_GM431946152.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-coin-master-android_GM406889139.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-websites-that-actually-work_GM431946152.pdf
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-generator-no-human-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004dfa.bin
0558d1ef565a792d44387c554b9bcf2b286595fa09f4d138d599e67fe9a87faf		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DFA 25720 bytes
font_01_sfnt_off0000895f.bin
7689b6731d47fc176aef925fc5194a10a34d162e90d7014a3ccea13949bcaf7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x895F 18648 bytes

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