Malicious PDF — malware analysis report

Static analysis result for SHA-256 45528c58681d7f47…

MALICIOUS

PDF

46.3 KB Created: 2021-06-13 16:09:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 93ee47c9d3ccf6fe85a9388fb698ce97 SHA-1: 06e4ea0bfceaa902a7d00e462eff95b881793822 SHA-256: 45528c58681d7f477b15c5c0935b9805654ee4a3e94dc1c4b7b32b69e6b3ed83
122 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and generators, specifically targeting Roblox players. It contains multiple embedded URLs that redirect to sites offering 'free generators' or 'game hacks', which is a common tactic to entice users into downloading malicious payloads or visiting phishing sites. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may also instruct users to open a password-protected archive, a technique used to bypass security scans.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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 http://netcdn.co/app/431946152/troll-hacks-roblox-game-hack PDF link annotation
    • http://sbm-nn.ru/images/hack-de-robux-2021-gratis_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-roblox-fortnite-gameplay_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/cmo-hackear-el-roblox-para-tener-robux-en-un-mvil_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-a_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-bubble-gum-leviathan-free_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-free-robux_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_off00004f34.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F34 24868 bytes
SHA-256: b9134f2f884d96a3b1bbb96d4fca806e7a01a0377773850e8615321e7e79df8e
font_01_sfnt_off00008863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8863 2836 bytes
SHA-256: fd98c8f6e7c2e74bbd5822409159a93ac5c94da083ae4c2eb269d4284375f9e8
font_02_sfnt_off00009209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9209 18184 bytes
SHA-256: 9439508f4a70382d085d721fc23f4b3492200c4feb21a39e5b51bb325354b277

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