Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cb87585547f71e1…

MALICIOUS

PDF

48.7 KB Created: 2021-06-01 10:51:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: af8aef6dab1894fd45c2b76706c565b8 SHA-1: 96af90f45cb316f39dc156a98221fb1a2f01ae4f SHA-256: 7cb87585547f71e18eaee0751a6db1fe082e0469f487d276d365d0d8905d97d5
100 Risk Score

Malware Insights

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

The PDF contains embedded URLs that lead to known malicious redirector infrastructure, specifically targeting users with lures related to game cheats and free in-game items. The presence of a visual download button heuristic further supports the malicious intent of tricking users into downloading unwanted software. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 3

  • 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 https://netcdn.xyz/app/431946152/cheat-engine-6.7-on-roblox-game-hack In PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-roblox-2021-no-hacks_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/dominus-hats-roblox-free_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/roblox-body-part-resize-hack_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/roblox-natural-disaster-survival-cheats_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/how-to-make-free-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/roblox-treelands-free-uncopylock_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/hack-roblox-games-pastebin_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/free-camera-not-activating-roblox_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/roblox-top-free-robux_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/blox-piece-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://forensicsinstitute.org/wp-content/uploads/fsqm-files/how-to-get-free-clothes-on-roblox-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005028.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5028 27048 bytes
SHA-256: aec0c2ce2529ee4f15db83153330dcad2306169df75de27088d40c74c52fc6b1
font_01_sfnt_off00008f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F75 2908 bytes
SHA-256: e28d2c57f35643e2026f86c34ac3bb63cba74be3f6c066e81aba6d285e5a121b
font_02_sfnt_off0000996f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x996F 18980 bytes
SHA-256: f0631dd4816c00c3a8437fefe03c20071d341541889e2ef3da6d2a9df4f5b37d

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