PDF malware analysis — malicious · 4f425f762604f8aa

MALICIOUS

PDF

43.5 KB Created: 2020-08-11 21:17:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a62c379d2264aa31af6ba9492e7f1c4e SHA-1: e95db0c0229b185fd970f5462ccde4e928885e73 SHA-256: 4f425f762604f8aa61cb60a38f1b8d419cffe3bf62688a27e4e84842c27eb5f6

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links designed to create a link farm, with one prominent link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=periodic+table+with+names+and+atomic+mass+and+numbers+pdf', which is flagged as a malicious redirector. This suggests the PDF is a lure to redirect users to malicious infrastructure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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://ttraff.com/pify?keyword=periodic+table+with+names+and+atomic+mass+and+numbers+pdf
- http://nasenini.fireflyfamilydaycare.com/uploads/1/3/2/8/132814930/vakado.pdf
- http://files.dynamicwellnesstherapy.com/uploads/1/3/1/3/131379923/sejudubedaviri-bujajak-bomafiratux-gujafokegagido.pdf
- http://rifaxax.kindredconnectionsgen.com/uploads/1/3/1/4/131453536/7576340.pdf
- http://files.emmareavesphotography.com/uploads/1/3/2/7/132740435/5930381.pdf
- https://cdn.shopify.com/s/files/1/0429/7061/1861/files/84130164414.pdf
- https://cdn.shopify.com/s/files/1/0434/2956/0481/files/bilige.pdf
- https://cdn.shopify.com/s/files/1/0433/8289/8840/files/46867630699.pdf
- https://cdn.shopify.com/s/files/1/0429/5042/6780/files/26330577554.pdf
- https://cdn.shopify.com/s/files/1/0432/2610/3971/files/85632000191.pdf
- https://cdn.shopify.com/s/files/1/0431/3245/3015/files/46387393245.pdf
- https://cdn.shopify.com/s/files/1/0430/4017/8333/files/tenika.pdf
- https://cdn.shopify.com/s/files/1/0430/8277/6725/files/4189842412.pdf
- https://cdn.shopify.com/s/files/1/0435/4693/5445/files/lugifepenisuwu.pdf
- https://cdn.shopify.com/s/files/1/0428/9586/8057/files/jutinuvuwujeze.pdf
- https://cdn.shopify.com/s/files/1/0431/0633/6930/files/bulolurowomusobevujerisa.pdf
- https://cdn.shopify.com/s/files/1/0430/8615/1833/files/circular_motion_file.pdf
- https://cdn.shopify.com/s/files/1/0437/2371/8805/files/78559683328.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006bfd.bin` `a1af7ed2d3f6524415da9d12ec2d0ce41f9632b38d441c18d361b3d4769f121f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BFD	5628 bytes
`font_01_sfnt_off00007ef8.bin` `9a7c547648cdf19fd46baeb5323e4a2e2c0bdf8726cbe666839a037b446a0c84`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EF8	9732 bytes

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