PDF malware analysis — malicious · 3e49ae6b845fe08d

MALICIOUS

PDF

44.4 KB Created: 2020-08-01 08:23:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bdcf6a51e6b5a26dee0a3ddd372d2514 SHA-1: f56f11e6970740b7e4a38d1a4e954bbfe59e3876 SHA-256: 3e49ae6b845fe08da4f99257feb64ee999a903c9e0ac0c0445cee4606a3299d0

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=key+and+peele+college+football+names, which likely serves as a gateway to further malicious content. The presence of numerous links, many pointing to Shopify domains with seemingly random PDF filenames, suggests a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness.

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=key+and+peele+college+football+names
- http://files.biokonstra.com/uploads/1/3/0/7/130739718/fareti.pdf
- http://files.joerussellphotos.com/uploads/1/3/1/4/131438567/bfe38.pdf
- http://files.homevetcareco.com/uploads/1/3/0/7/130739159/7703447.pdf
- http://files.bournadventure.com/uploads/1/3/1/4/131438180/jibevapofaxagi-xumivixowazid-worumiva-muxogaj.pdf
- https://cdn.shopify.com/s/files/1/0428/8613/5961/files/dark_cloud_2_strategy_guide.pdf
- https://cdn.shopify.com/s/files/1/0430/7409/3217/files/81880117663.pdf
- https://cdn.shopify.com/s/files/1/0433/9276/2017/files/95341968990.pdf
- https://cdn.shopify.com/s/files/1/0435/4742/6975/files/cub_cadet_xt1_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/1501/2511/files/kejesataxunaji.pdf
- https://cdn.shopify.com/s/files/1/0428/6241/1942/files/75081262865.pdf
- https://cdn.shopify.com/s/files/1/0429/2476/9436/files/lapegudizor.pdf
- https://cdn.shopify.com/s/files/1/0433/4161/1173/files/22446960807.pdf
- https://cdn.shopify.com/s/files/1/0432/7289/6678/files/bijavidomomipij.pdf
- https://cdn.shopify.com/s/files/1/0432/3767/1075/files/lg_g6_root.pdf
- https://cdn.shopify.com/s/files/1/0431/1266/1152/files/lenopofuriwirasuxonatonov.pdf
- https://cdn.shopify.com/s/files/1/0434/0970/3062/files/37255804277.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_off00006e53.bin` `36c2fae98e4a78145649271951026181b21d9157b23bde4d10041ff063a4068c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E53	5588 bytes
`font_01_sfnt_off00008168.bin` `83549a6585f1c237ba1d8c5ab1e141e4b45b2aebc7dc1c6d13a0ac8bdce4c0c9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8168	10304 bytes

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