PDF malware analysis — malicious · 5fda9e0680af0efa

MALICIOUS

PDF

47.0 KB Created: 2021-06-03 07:19:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 44290c6cdaad0183bc95ce465a77d2b7 SHA-1: 3683d3e2af0aae898d7e9a3d994f9063445d09cc SHA-256: 5fda9e0680af0efa5edf047b3d746a80293535ca270291426ff3fc731b68521d

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as free game generators or hacks, such as 'free robux' or 'coin master spins'. These links redirect to malicious infrastructure, including a known malicious redirector. The document body and heuristics indicate a lure for users interested in free in-game items, likely leading to further malicious content or downloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/479516143/minecraft-font-free-game-hack In PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/roblox-free-executor_GM431946152.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/free-tiktok-fans_GM835599320.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/pokemon-go-free-level-40-account_GM1094591345.pdfIn PDF document text
- http://www.goaheadmigration.com/uploaded_files/userfiles/files/minecraft-font-free_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000053fd.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x53FD	24720 bytes
SHA-256: `a2de02e47c7351d32ce1324c7cbe491d5443de79d653cc6baa5eaad8d062f034`
`font_01_sfnt_off00008c90.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C90	2932 bytes
SHA-256: `6774525c6d0b7c0efe5d0d33a38d2349f865160cb2e16db156a3ef0879725d9b`
`font_02_sfnt_off000096b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x96B1	17712 bytes
SHA-256: `48684535abb05df1a4efb13fd94135dee175bf6b61229e4eaa41ff3ed13e5a52`

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