PDF malware analysis — malicious · 9dc46a98978e8476

MALICIOUS

PDF

38.1 KB Created: 2020-08-09 19:38:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bcabbbd91faaa6238a04cf9825114462 SHA-1: 4ebbca2e78adc4adb56cb55aee88809dbe26ed00 SHA-256: 9dc46a98978e847675e5e8a883be79419e50fa4e1c14461c2909a839b711feb8

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to malicious content. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, likely for SEO manipulation or to host further malicious content. The ML classifier strongly indicates malicious intent. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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=air+pollution+pdf+in+marathi
- http://files.jamesneedhamart.com/uploads/1/3/0/9/130968960/df5e9d5706cf0dc.pdf
- http://pemogeb.tallsycamorecampground.com/uploads/1/3/1/4/131438137/jasawev-dowafupaxore-lufazigojebub-sexarebu.pdf
- http://files.nourishedandfertile.com/uploads/1/3/2/7/132740362/rorivizodorimepo.pdf
- http://files.emeraldandvioletstudio.com/uploads/1/3/1/4/131483005/7934f9bac.pdf
- http://files.stpetergreene.com/uploads/1/3/1/4/131483154/4ac95.pdf
- https://cdn.shopify.com/s/files/1/0431/8806/0321/files/brother_ls-_2125i.pdf
- https://cdn.shopify.com/s/files/1/0431/2816/0420/files/20683634490.pdf
- https://cdn.shopify.com/s/files/1/0430/0413/3525/files/jesetexigilaniditurilaf.pdf
- https://cdn.shopify.com/s/files/1/0429/8421/0583/files/6753692296.pdf
- https://cdn.shopify.com/s/files/1/0433/6759/6184/files/4769090923.pdf
- https://cdn.shopify.com/s/files/1/0435/6633/4111/files/rawai_al_bayan.pdf
- https://cdn.shopify.com/s/files/1/0430/7966/3765/files/67346811604.pdf
- https://cdn.shopify.com/s/files/1/0428/0962/2687/files/technology_definition.pdf
- https://cdn.shopify.com/s/files/1/0429/6045/3785/files/jokizunajogewixuvel.pdf
- https://cdn.shopify.com/s/files/1/0434/4286/4289/files/10409308280.pdf
- https://cdn.shopify.com/s/files/1/0433/4475/6901/files/36697550704.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_off000058b4.bin` `e5840dc0bf060b1f8c202ef2fdd5cdfb6f402285487694bba1795fbbc6b7b635`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x58B4	5092 bytes
`font_01_sfnt_off000069d7.bin` `00653cb746e01db28fba7a39646a44b61eb985c8af389fd80a27719ec5e2d03e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69D7	9940 bytes

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