PDF malware analysis — malicious · e8eb395c80949b53

MALICIOUS

PDF

43.8 KB Created: 2020-08-09 13:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bff69f65e7a8a0df85a37875aa5b10ac SHA-1: 6b69a8f76f62b54453cabeaf3d274d38996fefc7 SHA-256: e8eb395c80949b536cfaecc0b3d11fea40239c6d6f38c5aa6d86bec37afba2a2

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, indicative of SEO link farming. The primary malicious URL identified is ttraff.ru, which is known for redirecting to malicious content. While the document body contains text related to management, the embedded links suggest a deceptive purpose, likely to lure users to malicious sites. 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.ru/pify?keyword=difference+between+authority+and+responsibility+in+management+pdf
- http://files.absolute-doors.co.uk/uploads/1/3/1/6/131606526/zagodigedolesofala.pdf
- http://files.mallorysrooftop.com/uploads/1/3/1/3/131383719/8927143.pdf
- http://files.spencecatermusic.com/uploads/1/3/1/8/131856703/lutisarep.pdf
- https://cdn.shopify.com/s/files/1/0437/3826/7809/files/drug_abuse_among_nigerian_youth.pdf
- https://cdn.shopify.com/s/files/1/0431/9277/8912/files/49781334115.pdf
- https://cdn.shopify.com/s/files/1/0431/4402/0125/files/4._625_as_a_fraction.pdf
- https://cdn.shopify.com/s/files/1/0435/1049/7434/files/small_program.pdf
- https://cdn.shopify.com/s/files/1/0431/8003/2160/files/47426104956.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91428743782.pdf
- https://cdn.shopify.com/s/files/1/0433/0392/7973/files/wasox.pdf
- https://cdn.shopify.com/s/files/1/0434/6540/8662/files/50810422831.pdf
- https://cdn.shopify.com/s/files/1/0428/8669/3023/files/stats_modeling_the_world.pdf
- https://cdn.shopify.com/s/files/1/0428/8764/3303/files/second_life_redelivery.pdf
- https://cdn.shopify.com/s/files/1/0440/3222/9541/files/matakufukenumewunixo.pdf
- https://cdn.shopify.com/s/files/1/0427/8488/2844/files/88802690736.pdf
- https://cdn.shopify.com/s/files/1/0432/5575/9011/files/mifixizimokubapol.pdf
- https://cdn.shopify.com/s/files/1/0435/2134/3647/files/58096755163.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_off00006bf3.bin` `bb3f63994e8e796ed15a0f65ae103a9667923b5de4ac7ecce15872edfcb5c9ed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BF3	5904 bytes
`font_01_sfnt_off00007ffd.bin` `7792e55b5f61dfe3d4be139b228a534c3c723bd3e7e0806dbff08154cc001137`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FFD	9796 bytes

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