PDF malware analysis — malicious · 091abdcb306902ab

MALICIOUS

PDF

53.8 KB Created: 2021-06-09 04:35:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: dbe529419ad23178e83d8fcbaa39bf54 SHA-1: 1f98b2e481a763c79be701d95237e164f7646f83 SHA-256: 091abdcb306902ab962763d586b63cb425b6834ee074d42a74827407355eb8a6

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, many of which are related to game hacks and cheats, suggesting a lure for users seeking such content. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate malicious intent. The document body, though heavily obfuscated, contains references to 'Free Robux' and a URL, reinforcing the phishing or scam nature of the document.

Machine Learning

Nyx PDF Classifier malicious score 0.9636

Heuristics 4

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
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.tw/app/431946152/free-robux-facebook-game-hack
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/pubg-uc-whatsapp-group-link_GM1330123889.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-rape-hack_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-comroblox_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-spin-coin-master-game_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-apk-android-1_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-free-spins-link-app-download_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-free-items-2021_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-free-spins-hack-2021_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/codes-to-hack-roblox-accounts_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/moonactive-free-spins-coin-master_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-spin-hack-pc_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-free-soins_GM406889139.pdf
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-royale-high-diamond-hack_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000056fa.bin` `5c22b8820efaa6916a96a084c099fb1017d7e080adba72c1e48a02393d9b9c00`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x56FA	27656 bytes
`font_01_sfnt_off0000966e.bin` `393a04874075d5b33964961d143b96a113efc85c879634e4ae3af9cbc2122f2d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x966E	7628 bytes
`font_02_sfnt_off0000af96.bin` `bbf15651c3e6820af2d3b6be6d2eae7a3ffaf1df3fbaa94ddcf5b75861de2cdf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAF96	18412 bytes

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