PDF malware analysis — malicious · 0a1484410309d31c

MALICIOUS

PDF

34.9 KB Created: 2021-06-29 06:14:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 44a1770b69cd06082dd08aa3478e170b SHA-1: 6bfa5afa39f9f5c49bf1a43a1cf49dabf8cdb9af SHA-256: 0a1484410309d31c557db098e9bd3d722cb104056f7cf57c42abd5fc5ca5bcf2

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game items and hacks to entice users. It contains numerous links to external PDF files and a primary redirector URL, likely serving as a link farm or part of a phishing campaign. The ML classifier strongly indicated maliciousness, and the presence of multiple critical heuristic firings supports this assessment.

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.co/app/431946152/free-clothes-for-roblox-hack-game-hack In PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/robux-hack-method_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-gte-free-robux-2021-still-work_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-hack-acc-in-roblox-kazok_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/bleu-roblox-mega-free-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-hats-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-free-admin-in-roblox-on-all-games_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/give-me-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/comment-hack-booga-booga-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/hack-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-robux-gift-card-print_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-app-free-download_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/80-free-spins-coin-master_GM406889139.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_off000031fd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31FD	22352 bytes
SHA-256: `4a2cafce952f4e15069bab176dfb7cc24644b2f484ca7a786e1d8a397247457d`
`font_01_sfnt_off00006382.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6382	19088 bytes
SHA-256: `55dfcf88eea02fa80672c557411588e3b0728b51e5f05525c6de6621c821b51c`

Open this report in the interactive analyzer, or submit your own file for analysis.