PDF malware analysis — malicious · 2c45d4680f6b87a2

MALICIOUS

PDF

44.4 KB Created: 2021-05-12 18:02:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c6dc2500ae96e0268855bcfee29b5473 SHA-1: e30bb420606435cff60feb9cb247c08dc6ff495c SHA-256: 2c45d4680f6b87a2ef3394b2e0ee51f2916a5c0624fcaa87063bed2866d4ad82

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, identified as a link farm, directing users to external websites. The document body and extracted URLs suggest a lure related to game cheats and free items, likely to drive traffic or facilitate the download of additional malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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.xyz/app/406889139/free-spins-coin-master-without-completing-offers-game-hack
- https://de-licht.com/image/data/files/roblox-free-robux-hack_GM431946152.pdf
- https://de-licht.com/image/data/files/coin-master-free-rare-cards_GM406889139.pdf
- https://de-licht.com/image/data/files/how-to-win-free-robux_GM431946152.pdf
- https://de-licht.com/image/data/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
- https://de-licht.com/image/data/files/how-to-get-free-robux-as-a-kid_GM431946152.pdf
- https://de-licht.com/image/data/files/free-bobux_GM431946152.pdf
- https://de-licht.com/image/data/files/free-robux-codes-2021_GM431946152.pdf
- https://de-licht.com/image/data/files/coin-master-hacksco_GM406889139.pdf
- https://de-licht.com/image/data/files/coin-master-free-spins-link-2021-app_GM406889139.pdf
- https://de-licht.com/image/data/files/free-minecraft-svg-cutting-files_GM479516143.pdf
- https://de-licht.com/image/data/files/free-minecraft-codes-2021_GM479516143.pdf
- https://de-licht.com/image/data/files/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdf
- https://de-licht.com/image/data/files/robux-codes-generator-no-human-verification_GM431946152.pdf
- https://de-licht.com/image/data/files/how-to-hack-someone-on-roblox_GM431946152.pdf
- https://de-licht.com/image/data/files/download-coin-master-hack-mod-apk_GM406889139.pdf
- https://de-licht.com/image/data/files/how-to-get-free-robux-2021_GM431946152.pdf
- https://de-licht.com/image/data/files/coin-master-hack-apk-ios_GM406889139.pdf
- https://de-licht.com/image/data/files/get-free-spins-coin-master-2021_GM406889139.pdf
- https://de-licht.com/image/data/files/coin-master-free-spin-and-coin-links_GM406889139.pdf
- https://de-licht.com/image/data/files/roblox-promo-code-to-get-free-robux_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_003_off00004842.bin` `06768eafb726cef16e70f7f89437be72d2bb7fb29de747fd13d6066ad1e85150`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4842	23944 bytes
`font_01_sfnt_off00007eee.bin` `f9d1f73c99ac19e1fa9dba4eb5e90eabc47451d72c930a2b8abf3a4aec2ebdc9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EEE	2884 bytes
`font_02_sfnt_off000088d0.bin` `94ec3d6dd7afe22736a4406c77b2a22b2801cceff0f201dfa37f6b15e40fa38c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88D0	19012 bytes

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