PDF malware analysis — malicious · e799d7a9f18ee5b6

MALICIOUS

PDF

35.0 KB Created: 2021-07-09 14:42:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 305958c5809801046cead5ddd0a2ceb3 SHA-1: 0ffe70ed116bbeb58711f8f3f8d1eafb937cede4 SHA-256: e799d7a9f18ee5b61090787104ba973459648ce69e225af44b0b0ea0b3fe898b

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, including a primary link to a known malicious redirector. The document body and heuristics indicate a lure for game-related cheats or currency, designed to trick users into visiting potentially harmful sites. The presence of a malicious redirector and a large number of external links suggests a phishing or scamming attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
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
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.tw/app/431946152/how-you-get-robux-game-hack In PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-tiktok-likes-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/do-robux-generators-work_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-2021202120219-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/best-games-to-hack-on-roblox-non-fe_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-supreme-shirt-free_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-free-robux-promotion-link_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-free-robux-limited-edition_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-march_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000031f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31F4	22404 bytes
SHA-256: `01a4b9486e36e59e21f2b07205c5f10e347db6c94b34e439fadc7f834fe41bc0`
`font_01_sfnt_off000063bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63BF	18984 bytes
SHA-256: `56fa757f9e5a49b5a9868cb781ce682672aa068df69e370ec5b10dcd658c13b5`

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