PDF malware analysis — malicious · 2215f126a280801b

MALICIOUS

PDF

49.7 KB Created: 2021-05-13 05:04:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 05b04b2c6d233e0d678f70e60a88c300 SHA-1: aa46649b0eaedf8691112da69ab4a43d7ffe214e SHA-256: 2215f126a280801b06d0fb7835943dbe0bccdac41d71ef0d51b162e1b740bdca

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to websites promising game hacks and free currency, a common lure for phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract traffic. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document intended to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.8642

Heuristics 5

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.
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.
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/406889139/coin-master-hack-2021-ios-game-hack PDF link annotation
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-outfits-roblox_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/roblox-e-free_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-reddit_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
- http://www.middleeastautorepair.com/uploaded_files/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004fa9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4FA9	25032 bytes
SHA-256: `ff5febab8612af03f0aabb0c8204a308e87acfa233e87efcf7a50bd1c37c17de`
`font_01_sfnt_off0000888b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x888B	4028 bytes
SHA-256: `a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91`
`font_02_sfnt_off0000962c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x962C	2788 bytes
SHA-256: `6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530`
`font_03_sfnt_off0000a01c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA01C	18116 bytes
SHA-256: `77442674c0809aead75be931568f5718e5115af80d9dd84d81b0bed7d24a7281`

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