Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b4c095fbfe79c70…

MALICIOUS

PDF

47.9 KB Created: 2021-05-13 03:03:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 85c8f2c71ec0173907ca19225036ade5 SHA-1: f56173fa021f95a942a824872d1a527301bfe98c SHA-256: 7b4c095fbfe79c7002ea1bbf5dc962d98bbdc216cc2234cc154ffef82e628a2f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to domains associated with SEO spam and potentially malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to manipulate search engine results or redirect users to harmful sites. While no scripts were directly extracted, the presence of external URIs and the ML classification strongly suggest malicious intent, likely to lead users to phishing or malware download pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/free-roblox-clothes-boy-game-hack
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-xbox-one_GM479516143.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/can-you-get-free-robux-on-roblox_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/easy-robux-hack_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/free-foxy-food-coin-master_GM406889139.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins_GM406889139.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/best-minecraft-hacked-client-2021_GM479516143.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/how-to-hack-people-in-roblox_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/roblox-promo-codes-free-robux_GM431946152.pdf
    • http://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-android_GM431946152.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/easy-coin-master-hack-without-verification_GM406889139.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/roblox-hacks-com_GM431946152.pdf
    • http://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/minecraft-app-store-free_GM479516143.pdf
    • http://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/reddit-coin-master-hack_GM406889139.pdf
    • https://elearning.mtsddikanang.sch.id/__statics/gudangsoal/files/www-coinmaster_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004acd.bin
283640209e9e3570d07664d967043e384bc374ce5141fb84d3271292b7721ee1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ACD 26552 bytes
font_01_sfnt_off00008826.bin
abacf03da64201704edc20d39f3bd3d5d3b9e215260a41501937868fdb7072cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8826 5116 bytes
font_02_sfnt_off000098ae.bin
ff0928d05cd2328f5f6db263fee94a7b5023d77c4cae175890f1311eb4a8d902		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98AE 18400 bytes

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