PDF malware analysis — malicious · 29519c63d27e77c1

MALICIOUS

PDF

35.6 KB Created: 2021-07-07 12:30:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 45936a6e50c3cac4067ec600217f1da7 SHA-1: a98cd4431dcb9bd710d7b74e077510d7adfa0545 SHA-256: 29519c63d27e77c179f65831dffbdee09d86ed28be2d2f2d0a198a888117c1fe

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links disguised as free game resources and hacks, directing users to a malicious redirector. The document body and heuristics indicate a lure for users interested in games like Minecraft and Roblox, likely to lead them to a phishing or malware download site. No scripts were extracted, but the embedded URLs and redirector activity are strong indicators of malicious intent.

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/479516143/free-minecraft-printables-food-labels-game-hack In PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-copy-any-roblox-game_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-robux-exe_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/hacks-for-roblox-phantom-forces-2021_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-roblox-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-robux-no-apps_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_off00003497.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3497	22828 bytes
SHA-256: `76c88ea3839fa635057c767868206eb36097584f7615b03ec63cd3c459aec101`
`font_01_sfnt_off000067b4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67B4	18556 bytes
SHA-256: `305b0bb95dea39cc310aaf798f5aa91dcc06275b2e7d604a8dcca2c7ef54f050`

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