PDF malware analysis — malicious · 30e8f4c69f0febb3

MALICIOUS

PDF

43.1 KB Created: 2020-08-12 20:25:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a8f32e736794492f3f8aaeaa9e3a8681 SHA-1: 8840432a01973458fc09a929b2f6a82723f91186 SHA-256: 30e8f4c69f0febb3a76b98df8738c6db5f7c5eb78ce872d9a34306b41d6c4a7e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be luring the user to the 'ttraff.ru' URL, which is likely a phishing or malware distribution site.

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=learning+styles+activist+reflector+theorist+pragmatist+pdf
- http://files.edenshalefarm.com/uploads/1/3/0/7/130739285/d4be181a3b4f.pdf
- http://demise.theburyingparty.com/uploads/1/3/0/8/130814729/cce7f4f2cf.pdf
- http://files.spiritfireretreatcenter.com/uploads/1/3/2/7/132740270/d7cb80.pdf
- https://cdn.shopify.com/s/files/1/0429/7008/7587/files/zajizepejerenopubelaj.pdf
- https://cdn.shopify.com/s/files/1/0435/6341/7759/files/11837017947.pdf
- https://cdn.shopify.com/s/files/1/0434/9201/6280/files/32259266928.pdf
- https://cdn.shopify.com/s/files/1/0435/9333/4952/files/bellcrank_design.pdf
- https://cdn.shopify.com/s/files/1/0434/1517/5317/files/xagagalatowajeva.pdf
- https://cdn.shopify.com/s/files/1/0438/8985/2568/files/model_aircraft_aerodynamics_simons.pdf
- https://cdn.shopify.com/s/files/1/0430/6026/5117/files/lupigeguxegupomad.pdf
- https://cdn.shopify.com/s/files/1/0432/9875/0629/files/bemevigogabovorodiraxidi.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/46896997086.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/liwukepurenugiweda.pdf
- https://cdn.shopify.com/s/files/1/0436/3180/4574/files/29236978628.pdf
- https://cdn.shopify.com/s/files/1/0433/1264/4251/files/togelinozisijuxoduve.pdf
- https://cdn.shopify.com/s/files/1/0432/1381/5966/files/blackbird_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kirojaj.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_off00006964.bin` `5632a1cb22c4e47a17ebc94ab1d385326c4d709b46b2c474bbabee4add7e7872`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6964	5672 bytes
`font_01_sfnt_off00007c8c.bin` `8d6d9559d79f47ee23b9238e4146ca6431b0944e586328070f7c0e173829a9f8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C8C	10096 bytes

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