PDF malware analysis — malicious · d6e486dab20b5e06

MALICIOUS

PDF

45.2 KB Created: 2020-08-06 00:59:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b0d56a50b75d70cf9c577a6d10510e91 SHA-1: 57f6eaf4e610a1833d25c97c9c2d7d995ac1ca23 SHA-256: d6e486dab20b5e062e7c31d05cada083fb1001ffa44dd8eb50d10796a78189b0

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=assistive+technology+for+the+blind+pdf'. This indicates a phishing or social engineering attempt to direct the user to malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous links, including the malicious redirector, is sufficient evidence for the attack pattern.

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.cc/pify?keyword=assistive+technology+for+the+blind+pdf
- http://files.magistrasolomon.org/uploads/1/3/1/0/131070374/8765023.pdf
- http://files.wedgwoodsci.com/uploads/1/3/0/7/130775942/nebasanemawalu.pdf
- http://files.barrygjohnsonsr.com/uploads/1/3/2/8/132815181/1087955.pdf
- http://files.simplypilatesandstretch.co.uk/uploads/1/3/1/3/131380107/fa445487f967.pdf
- https://cdn.shopify.com/s/files/1/0440/0594/9590/files/36062062584.pdf
- https://cdn.shopify.com/s/files/1/0441/2506/1272/files/evaluating_algebraic_expressions_word_problems_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0438/2962/4992/files/20032294706.pdf
- https://cdn.shopify.com/s/files/1/0437/0743/3125/files/53759905563.pdf
- https://cdn.shopify.com/s/files/1/0428/7247/1715/files/76313428417.pdf
- https://cdn.shopify.com/s/files/1/0433/5340/7646/files/71854912010.pdf
- https://cdn.shopify.com/s/files/1/0428/4419/2935/files/34125401915.pdf
- https://cdn.shopify.com/s/files/1/0434/0406/6983/files/38539987851.pdf
- https://cdn.shopify.com/s/files/1/0428/6201/8716/files/zajiwise.pdf
- https://cdn.shopify.com/s/files/1/0434/0586/9213/files/subaxakotifesafa.pdf
- https://cdn.shopify.com/s/files/1/0436/7928/5401/files/pijebifa.pdf
- https://cdn.shopify.com/s/files/1/0431/1020/3545/files/vorejisapoko.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000654a.bin` `8ac54e72a8233145e606b4db39180bcbc61ace1bbe87a58d0a9eff52bf41840e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x654A	5288 bytes
`font_01_sfnt_off00007740.bin` `6d6b501628839e7e6faacd550b92002f750eac355ef9724552827842bd0b1697`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7740	10092 bytes
`font_02_sfnt_off000099ab.bin` `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99AB	4324 bytes

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