PDF malware analysis — malicious · 9e66e56278819008

MALICIOUS

PDF

43.7 KB Created: 2020-09-19 04:11:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 04020e37c95716dac88461330c6688b2 SHA-1: 9cb53f359092ba3a34791039bf3056dc5b329541 SHA-256: 9e66e562788190082d4708f55e54e0a9581c2c5490de6446291690048e31a697

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting a 'lean in pdf download' lure, aligning with the heuristic findings of a PDF link farm and malicious redirector. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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/wix?keyword=lean+in+pdf+download
- http://files.mayacorrigan.com/uploads/1/3/2/8/132814097/7988333.pdf
- http://files.saponaplastics.com/uploads/1/3/1/3/131380741/xawekimoramaso.pdf
- http://fukov.spotteddots.com/uploads/1/3/1/8/131857120/vurut.pdf
- https://89ad87b9-e72d-4ddd-abb9-becc926a8540.filesusr.com/ugd/03dcd4_080cceaa469a4b3cad60165378256fb2.pdf?index=true
- https://2257b51c-348c-4c34-b56e-99865b9764f3.filesusr.com/ugd/95089d_6b461c5d9b2244769153b2b8cf208459.pdf?index=true
- https://25420c31-5e02-4e31-89ea-5930d62666e1.filesusr.com/ugd/6a22cb_8eededd45e28420eaab67a6ac5d8773c.pdf?index=true
- https://67080a95-82c3-4950-899d-fe02a2a26158.filesusr.com/ugd/4fb05f_cff942a5198b44f692a1ab7df20013e7.pdf?index=true
- https://19af737e-2aa6-4d2e-bbe0-6a5f21e41dd4.filesusr.com/ugd/b85eb0_63c860ce520a4f69b5206bb5acdb62c9.pdf?index=true
- https://597aa92f-b462-41b4-b89f-41e9226b16c7.filesusr.com/ugd/cac9e4_e7aa600923e94262a9ec89fe9e058ed8.pdf?index=true
- https://9a7326ff-7fb6-4389-adfd-a472126bf0af.filesusr.com/ugd/05e3ad_308170d2af8243fba57f3e2a21f2783d.pdf?index=true
- https://cdn.shopify.com/s/files/1/0462/3587/7525/files/kamodiloguziludiwif.pdf
- https://cdn.shopify.com/s/files/1/0430/2045/1997/files/cost_accounting_solution_manual_de_leon.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_off00006114.bin` `0e6e0baa4b8401e2fdd96868db1a89ed5fa135a7b43c2ae48ce3532049d5ccc4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6114	4500 bytes
`font_01_sfnt_off0000707d.bin` `c08c0c65c1cdb64b6f3a77b6ebf6e77f411bdcb8bec091c3ae7007f2e48ca607`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x707D	10456 bytes
`font_02_sfnt_off00009434.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9434	4324 bytes

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