PDF malware analysis — malicious · ef7a5e77a8f289bc

MALICIOUS

PDF

41.4 KB Created: 2020-08-08 15:38:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9c5aa78e9bb3bc105ee0c46c49abf7a7 SHA-1: fd9220c44ee1d7f358f0e714f1b00bf85ae8c8b6 SHA-256: ef7a5e77a8f289bc4f24819b87cf85462695daa350c4e59b312949afb9c81b3d

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a mass of external links, including one pointing to a known malicious redirector. The document body text, though corrupted, contains the URL that is also present in the malicious redirector link. This suggests the PDF is designed to trick users into visiting malicious websites by presenting them as legitimate resources.

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=accidental+death+of+an+anarchist+critical+analysis+pdf
- http://files.1stmiddletonscouts.com/uploads/1/3/0/8/130813362/129863.pdf
- http://gikagagip.15landsdowne.com/uploads/1/3/1/3/131380845/faguwuxenawanasobile.pdf
- http://files.oceanaparkwelshstud.com/uploads/1/3/2/8/132815367/3165856.pdf
- http://files.maevemccarthy.net/uploads/1/3/1/4/131453559/1e24a0578f7de2.pdf
- https://cdn.shopify.com/s/files/1/0433/6363/1272/files/36538921550.pdf
- https://cdn.shopify.com/s/files/1/0427/8665/2316/files/19058644311.pdf
- https://cdn.shopify.com/s/files/1/0433/0697/5382/files/tozog.pdf
- https://cdn.shopify.com/s/files/1/0432/2040/2336/files/automate_the_boring_stuff_with_python_free.pdf
- https://cdn.shopify.com/s/files/1/0431/9733/3668/files/sujid.pdf
- https://cdn.shopify.com/s/files/1/0439/8389/6734/files/jitufutajubasogasitegoru.pdf
- https://cdn.shopify.com/s/files/1/0429/1851/0745/files/sexibasi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdf
- https://cdn.shopify.com/s/files/1/0431/6754/7552/files/doxalipejiwulin.pdf
- https://cdn.shopify.com/s/files/1/0437/1152/9114/files/59911831707.pdf
- https://cdn.shopify.com/s/files/1/0437/2440/6935/files/49614574890.pdf
- https://cdn.shopify.com/s/files/1/0437/5825/6286/files/xawutofigoneb.pdf
- https://cdn.shopify.com/s/files/1/0430/8267/8433/files/71196458879.pdf
- https://cdn.shopify.com/s/files/1/0433/7798/3653/files/jesavaxazepademis.pdf
- https://cdn.shopify.com/s/files/1/0431/6413/9674/files/48855160265.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_off0000632d.bin` `fc2332b3f23e0ec52840cb3c1a101219d20119744a8c11b0fe5a72ad12781e2b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x632D	5336 bytes
`font_01_sfnt_off00007558.bin` `f28029800900a139ce7deba9426a864107ae6cd7905051dd31fe304107793e12`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7558	10168 bytes

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