PDF malware analysis — malicious · dc344b9b13e10d2d

MALICIOUS

PDF

91.9 KB Created: 2020-08-08 09:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b771e9e170c1e91f5eb2530af7f5b987 SHA-1: 4d3d9bc782b73f2b83424a7e4d8487070d8d71f5 SHA-256: dc344b9b13e10d2da15be1bac321e46daefc9178250e417327f7d4a619f0a536

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=liquido+amniotico+caracteristicas+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=liquido+amniotico+caracteristicas+pdf
- http://jefirovob.sarahwyldphotography.com/uploads/1/3/0/9/130969723/e355ab8.pdf
- http://files.kangarooislandskincare.com.au/uploads/1/3/1/0/131070450/787bc.pdf
- http://files.tampabaygospelawards.com/uploads/1/3/1/8/131857334/6286859.pdf
- http://files.danadanleyphotography.com/uploads/1/3/2/6/132681647/8737719.pdf
- http://files.thehonestcatholic.com/uploads/1/3/0/8/130873921/3064113.pdf
- https://cdn.shopify.com/s/files/1/0427/4018/7303/files/rowumigowujiselasives.pdf
- https://cdn.shopify.com/s/files/1/0430/6498/3701/files/49552224096.pdf
- https://cdn.shopify.com/s/files/1/0435/4818/0634/files/gevagilenuxajagilax.pdf
- https://cdn.shopify.com/s/files/1/0427/7462/6470/files/22278347700.pdf
- https://cdn.shopify.com/s/files/1/0430/3598/4029/files/82034036925.pdf
- https://cdn.shopify.com/s/files/1/0431/3815/4650/files/cr_table_5e.pdf
- https://cdn.shopify.com/s/files/1/0432/9691/5621/files/2529884986.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89573664631.pdf
- https://cdn.shopify.com/s/files/1/0437/0019/1387/files/59444520788.pdf
- https://cdn.shopify.com/s/files/1/0436/3111/6448/files/mazakufenox.pdf
- https://cdn.shopify.com/s/files/1/0433/9158/2357/files/sunedalojugaxobokobebuf.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24221046066.pdf
- https://cdn.shopify.com/s/files/1/0438/5426/6533/files/gipigazesegovevu.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_off00012b34.bin` `db1963f5109f4d05ca691a34bc3867ae7d0aba1e4ce9d3ae8aae82220de831cb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12B34	5336 bytes
`font_01_sfnt_off00013d47.bin` `af96f557be8799ddcc96c780df3f5e8c10b2da2b184ca2c29a2a4098b565b1a2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13D47	11416 bytes

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