Malicious PDF — malware analysis report

Static analysis result for SHA-256 8825264d6974fcc5…

MALICIOUS

PDF

45.0 KB Created: 2021-05-16 09:40:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: abe72ef8abf4e838d5a321edd13d52b0 SHA-1: 2fa48b71b34171496ab9b9640c6301cffebf671f SHA-256: 8825264d6974fcc5583e92a4b36ab7e1ea3152074541eb8c79eac8d4369ca1f3
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The document employs social engineering tactics, specifically a 'ClickFix' lure, to trick users into executing commands or downloading files. It contains multiple embedded URLs pointing to sites offering free game-related items, which are likely lures for malware. The presence of a password protection lure suggests an attempt to bypass security scanning.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 5

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/479516143/free-minecraft-alts-game-hack
    • http://nicoletastancu.ro/images/how-to-get-free-roblox-items_GM431946152.pdf
    • http://nicoletastancu.ro/images/coin-master-hack-unlimited-spins-game-download_GM406889139.pdf
    • http://nicoletastancu.ro/images/minecraft-pe-hacks-2021_GM479516143.pdf
    • http://nicoletastancu.ro/images/free-robux-card-codes_GM431946152.pdf
    • http://nicoletastancu.ro/images/free-robux-exe_GM431946152.pdf
    • http://nicoletastancu.ro/images/free-robux-apk_GM431946152.pdf
    • http://nicoletastancu.ro/images/free-robux-net_GM431946152.pdf
    • http://nicoletastancu.ro/images/free-robux-com-roblox_GM431946152.pdf
    • http://nicoletastancu.ro/images/static-moonactive-net-free-spins-coin-master_GM406889139.pdf
    • http://nicoletastancu.ro/images/coin-master-hacks-reddit_GM406889139.pdf
    • http://nicoletastancu.ro/images/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://nicoletastancu.ro/images/coinmaster-twitter_GM406889139.pdf
    • http://nicoletastancu.ro/images/how-to-get-free-coins-on-coin-master_GM406889139.pdf
    • http://nicoletastancu.ro/images/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • http://nicoletastancu.ro/images/coin-master-hacks-for-pet-food_GM406889139.pdf
    • http://nicoletastancu.ro/images/sites-for-free-spins-for-coin-master_GM406889139.pdf
    • http://nicoletastancu.ro/images/give-free-robux_GM431946152.pdf
    • http://nicoletastancu.ro/images/free-robux-websites-that-work_GM431946152.pdf
    • http://nicoletastancu.ro/images/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdf
    • http://nicoletastancu.ro/images/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cc3.bin
c36aeeaa27cea3cb1028df8ae1e40e99c66530d91ba1e8386d33e1141601ecd7
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CC3 24920 bytes
font_01_sfnt_off000085e7.bin
972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
pdf-font-stream PDF embedded font (sfnt) at offset 0x85E7 2820 bytes
font_02_sfnt_off00008f87.bin
4350bb70586d7d356c834f80239bf16b03274066df9e9143be1036ee17eff588
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F87 17644 bytes