Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a5a1bcf73c442e0…

MALICIOUS

PDF

50.3 KB Created: 2021-06-02 15:27:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 691930465d9c50ec10a089d3297ddc52 SHA-1: a226a11b4950ae5728d329ce9e0fe31eef4cc973 SHA-256: 7a5a1bcf73c442e08004e7076ee55d33b59da60767f2d224ec29f2cb103021dc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and infrastructure, masquerading as game hacks and free currency generators. The ML classifier also flagged this document as malicious. The embedded URLs are designed to lure users into clicking them, likely leading to further malicious content or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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/roblox-free-robux-card-codes-2021-game-hack In PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-online-play-roblox_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-tbc-free_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/earn-roblox-online-free_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/dragon-ball-z-final-stand-free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-hack-into-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-mad-city-free-money_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-hack-on-ios_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-hack-generator-online-no-survey_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-hacks-xray-2021_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-money-on-roblox-a-hack_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-roblox_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_off000053dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53DD 26204 bytes
SHA-256: c3440cbc32dffec21ed59550b97dc0ba56d7831c511035a34d7b33032e93f98d
font_01_sfnt_off00008fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB9 4696 bytes
SHA-256: 936efdae922c3e029cb89b30bbda917067a058276d5583c767c945a02d790b32
font_02_sfnt_off00009ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FF7 18892 bytes
SHA-256: 7d7aaaf461c1b4a34193654ccdf9471d74c8db45b7e6c6a94c4c2cc51c250aff

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