PDF malware analysis — malicious · 53b1a31aa6405777

MALICIOUS

PDF

43.2 KB Created: 2020-08-12 19:02:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a296987ce345a4071e45a742e56b707e SHA-1: 350ba4e23abb07284e3307100a1c64b691baf31c SHA-256: 53b1a31aa6405777fcc9d69ed1f55802bd115555daa86d52cff8cfab27258bfe

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with one prominent link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the text "Story map printable pdf" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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=story+map+printable+pdf
- http://files.patriotsshoalwaterbay.com/uploads/1/3/1/1/131164132/ebad5f29.pdf
- http://lovek.opmetoc.com/uploads/1/3/2/7/132710621/2611d7f041.pdf
- http://files.strichardschichester.co.uk/uploads/1/3/1/1/131164033/7622363.pdf
- https://cdn.shopify.com/s/files/1/0434/9162/3074/files/23667896134.pdf
- https://cdn.shopify.com/s/files/1/0430/8995/2922/files/science_laboratory_apparatus_and_their_uses_with_pictures.pdf
- https://cdn.shopify.com/s/files/1/0434/8415/1974/files/auto_tune_efx_3_crack.pdf
- https://cdn.shopify.com/s/files/1/0450/7149/9416/files/golijikabijopejepe.pdf
- https://cdn.shopify.com/s/files/1/0430/6550/8002/files/kenujanomejuvodor.pdf
- https://cdn.shopify.com/s/files/1/0437/8741/9806/files/41797917544.pdf
- https://cdn.shopify.com/s/files/1/0429/1906/7815/files/vazizubutivexamet.pdf
- https://cdn.shopify.com/s/files/1/0432/6716/2276/files/popiti.pdf
- https://cdn.shopify.com/s/files/1/0430/1688/0281/files/moboxuro.pdf
- https://cdn.shopify.com/s/files/1/0427/9900/5863/files/concone_trumpet.pdf
- https://cdn.shopify.com/s/files/1/0433/9102/5303/files/guponovisisew.pdf
- https://cdn.shopify.com/s/files/1/0430/7265/1413/files/67103833549.pdf
- https://cdn.shopify.com/s/files/1/0435/8311/1325/files/82603487804.pdf
- https://cdn.shopify.com/s/files/1/0431/8828/9694/files/44331996461.pdf
- https://cdn.shopify.com/s/files/1/0431/2255/7082/files/luketazovenam.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_off00006a6a.bin` `703acfeb2c18f35d4d94297e62bed77a59459e68649a165ecfcb4454cee3b9fd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A6A	5352 bytes
`font_01_sfnt_off00007c80.bin` `3da520f02fb130aadb162d03a76db8590cd0c6f4d35192533bb7c81f44263e24`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C80	10352 bytes

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