PDF malware analysis — malicious · 8d5e873bea3e0fde

MALICIOUS

PDF

49.2 KB Created: 2020-08-14 07:44:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a5572f74678e145b3d6d35ee4ce487f9 SHA-1: a40921ae4f8cc77be9e5ef04918979a5d290d7ed SHA-256: 8d5e873bea3e0fde4cfacdf911fe09b0d91b48cab42e946e92d5f0fb1f85c7df

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.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'cdn.shopify.com'. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL, suggesting a phishing or redirection attempt.

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.com/pify?keyword=lungi+dance+song+in+telugu
- http://nabegopav.morahmorah.com/uploads/1/3/0/7/130775189/jaxunewuvata.pdf
- http://keduxez.moveintomeditation.com/uploads/1/3/2/6/132681411/d212145922e.pdf
- http://files.rlccoop.com/uploads/1/3/0/7/130738513/xubiwoserevavinox.pdf
- http://keduxez.moveintomeditation.com/uploads/1/3/2/6/132681411/d2121
- https://cdn.shopify.com/s/files/1/0438/6563/7019/files/ravilesofijuti.pdf
- https://cdn.shopify.com/s/files/1/0434/7228/9944/files/goriniwudox.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdf
- https://cdn.shopify.com/s/files/1/0447/9467/5357/files/drrm_corner.pdf
- https://cdn.shopify.com/s/files/1/0432/8423/4398/files/nudaw.pdf
- https://cdn.shopify.com/s/files/1/0429/3374/7878/files/banagukuzamoxexoruzo.pdf
- https://cdn.shopify.com/s/files/1/0430/2870/9539/files/35299081675.pdf
- https://cdn.shopify.com/s/files/1/0429/3813/8783/files/kisebifalu.pdf
- https://cdn.shopify.com/s/files/1/0430/5849/5639/files/asbestosis_treatment.pdf
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/45805893014.pdf
- https://cdn.shopify.com/s/files/1/0431/6109/2250/files/gavufededila.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.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_off00006dbe.bin` `18fe8ef3ffe01b50052051a2c5f72089deacb46f44d68aa448ba2449de7366c2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DBE	4952 bytes
`font_01_sfnt_off00007ea4.bin` `e9e89d00aa15a8b2d08de6268f5642f99c10bd8f70b801768900f45d415a575b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EA4	10068 bytes
`font_02_sfnt_off0000a151.bin` `b83ff08cdbc49e7cfef8cbe45843382833facc0e05e545e08fb7eca07dec9369`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA151	16588 bytes

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