PDF malware analysis — malicious · 1fd303684edb2999

MALICIOUS

PDF

43.6 KB Created: 2021-05-16 23:12:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 8934ce2dad52d4592c91408c08041894 SHA-1: a7418552fb949ec0c4a08ae3f3164c37cd81c576 SHA-256: 1fd303684edb299992c7f1d66e0179439497220ad6789612af1ebfc9eefe7628

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that form a link farm, primarily directing users to pages offering "free coin master credit" or "free robux". The presence of a "PDF_SEO_LINK_FARM" heuristic and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. While no scripts were explicitly extracted, the document structure and embedded URLs suggest a lure for downloading further payloads or engaging in phishing-like activities.

Machine Learning

Nyx PDF Classifier malicious score 0.9648

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-coin-master-credit-game-hack PDF link annotation
- http://dijelovi.info/images/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
- http://dijelovi.info/images/wurst-115_GM479516143.pdfIn PDF document text
- http://dijelovi.info/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- http://dijelovi.info/images/robux-claimer_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
- http://dijelovi.info/images/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
- http://dijelovi.info/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
- http://dijelovi.info/images/vip-roblox-free_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
- http://dijelovi.info/images/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
- http://dijelovi.info/images/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
- http://dijelovi.info/images/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
- http://dijelovi.info/images/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://dijelovi.info/images/easy-way-to-get-free-robux_GM431946152.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_003_off00004813.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4813	24048 bytes
SHA-256: `f2c5afa2f024caed5ba5a3fd2a0181cf5f083793f9292d2dba8be0cea0b96f3c`
`font_01_sfnt_off00007efe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EFE	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off000088e9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88E9	17884 bytes
SHA-256: `34dd8c80f69d0f68a5b5993274c8f1bdeef3254478921523cc39dd8566b84a5f`

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