PDF malware analysis — malicious · d54c5d732b3bfebe

MALICIOUS

PDF

46.7 KB Created: 2020-08-15 19:43:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bfb5aba638818ae996771f74a893e8d8 SHA-1: 68274a1a1f6109c1d6c37e324f2567077212360f SHA-256: d54c5d732b3bfebe54e033298ba6144fb68c0c2778f3b0f948c6bfab5aac1486

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/wb?keyword=hipertension%20en%20el%20embarazo%20pdf%202017', which is also flagged as a malicious redirector. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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.ru/wb?keyword=hipertension%20en%20el%20embarazo%20pdf%202017
- http://files.fyldecoastplayers.com/uploads/1/3/2/7/132740445/2217703.pdf
- http://fojilajim.sarahcrain.com/uploads/1/3/2/3/132303382/c16d2f11f6.pdf
- http://files.blackstarcustoms.com/uploads/1/3/1/6/131636712/77447c.pdf
- http://files.allthesangwiches.com/uploads/1/3/1/6/131606133/0f7e91380474.pdf
- http://files.fyl
- https://cdn.shopify.com/s/files/1/0437/4275/7029/files/92915400469.pdf
- https://cdn.shopify.com/s/files/1/0433/7709/8910/files/gexijafogopurimakad.pdf
- https://cdn.shopify.com/s/files/1/0434/5082/6919/files/tusodabamoxit.pdf
- https://cdn.shopify.com/s/files/1/0432/5202/3458/files/vakadepel.pdf
- https://cdn.shopify.com/s/files/1/0440/1584/5541/files/50873108388.pdf
- https://cdn.shopify.com/s/files/1/0437/8856/6677/files/d_d_5e_spell_compendium.pdf
- https://cdn.shopify.com/s/files/1/0427/7259/4844/files/95808801949.pdf
- https://cdn.shopify.com/s/files/1/0428/2214/0063/files/tilinimakukirezirenizi.pdf
- https://cdn.shopify.com/s/files/1/0438/5121/9104/files/13505035357.pdf
- https://cdn.shopify.com/s/files/1/0441/0625/2440/files/pozopinuniwuze.pdf
- https://cdn.shopify.com/s/files/1/0431/0741/8273/files/23768333474.pdf
- https://cdn.shopify.com/s/files/1/0428/2833/3219/files/fufarifajadadawo.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_off00006d1c.bin` `8f20dfec59a22b8ec0e496bb5ae8497e1fee9ea7446678d369d7dc0ed1da9fc2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D1C	1696 bytes
`font_01_sfnt_off0000758a.bin` `be0943f759489b60bb54c10b2e13da3a4b4328b4b6d34b203dfa19f60d36c415`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x758A	5744 bytes
`font_02_sfnt_off00008903.bin` `a555bd01cfa78ed9fe4128f419cc6508a2cf024f09889ccecee245480bde285f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8903	10620 bytes

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