PDF malware analysis — malicious · f99c9295bfcb2d47

MALICIOUS

PDF

44.5 KB Created: 2020-08-06 16:54:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a97fa95874e13901df6a24c920ffe34e SHA-1: f6365fc3b4a4e384f451938fa1ea125a7dd27623 SHA-256: f99c9295bfcb2d47b58b61d55ee11c9ef0bc73050daf72e3e66b60b0777b720f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=maine+road+map+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on shopify.com. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of a malicious redirector and link farm suggests a phishing or malware distribution 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.cc/pify?keyword=maine+road+map+pdf
- http://files.mykwalk.com/uploads/1/3/1/4/131437982/7424839.pdf
- http://kifozij.wellbalancedfolsom.com/uploads/1/3/1/4/131452903/mebumawo.pdf
- http://files.ben-stephenson.com/uploads/1/3/1/4/131413718/sosejotuvij.pdf
- https://cdn.shopify.com/s/files/1/0431/0722/1658/files/fekejowupagidofirowe.pdf
- https://cdn.shopify.com/s/files/1/0435/0954/7174/files/benefits_of_social_media_on_mental_health.pdf
- https://cdn.shopify.com/s/files/1/0432/5516/9182/files/espier_launcher_ios_7.pdf
- https://cdn.shopify.com/s/files/1/0435/9307/2808/files/73322805666.pdf
- https://cdn.shopify.com/s/files/1/0435/8170/2303/files/79973248088.pdf
- https://cdn.shopify.com/s/files/1/0431/0820/4704/files/voriguzelex.pdf
- https://cdn.shopify.com/s/files/1/0430/6278/8245/files/92936468745.pdf
- https://cdn.shopify.com/s/files/1/0431/0790/9794/files/66389159140.pdf
- https://cdn.shopify.com/s/files/1/0428/8688/9639/files/47562659832.pdf
- https://cdn.shopify.com/s/files/1/0430/5905/2706/files/xetozofapuxewefe.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.pdf
- https://cdn.shopify.com/s/files/1/0431/9110/7742/files/nafefozubejakomelel.pdf
- https://cdn.shopify.com/s/files/1/0438/6878/2757/files/66814288287.pdf
- https://cdn.shopify.com/s/files/1/0438/9765/1352/files/gijusapuzorisinufofon.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_off0000719c.bin` `a4600a8feb9b42f0ee56b52d97d31d93ee82286b69ebc6944036a6ef8faa1035`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x719C	4984 bytes
`font_01_sfnt_off00008288.bin` `82872e57abb316e16bc4a948d9f1680b9419306d01b222706a39995583d4880d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8288	10192 bytes

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