PDF malware analysis — malicious · ded4c14eab67676e

MALICIOUS

PDF

46.3 KB Created: 2020-08-10 20:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 068642bcc25b5a813dc6b95510e0c731 SHA-1: 26c133d85632ac5e4e043f4a93b475642f83b610 SHA-256: ded4c14eab67676ede41d9477629307258b89a1c2975b6b40567818de0086001

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or redirection tactic to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the target URL, indicating a social engineering lure to trick users into visiting a malicious 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.com/pify?keyword=value+chain+analysis+example+pdf
- http://vefowonif.hermanworks.com/uploads/1/3/0/7/130776542/01524f.pdf
- http://files.holytempleufwb.com/uploads/1/3/2/3/132302872/02363d1f303df5.pdf
- http://files.sofpreschooldouglasville.com/uploads/1/3/1/1/131163760/lasepudawokese.pdf
- http://files.discoveryelectricbikes.com/uploads/1/3/2/7/132740375/4424646.pdf
- https://cdn.shopify.com/s/files/1/0428/6749/0975/files/lukufuruvereleda.pdf
- https://cdn.shopify.com/s/files/1/0433/9446/5948/files/salvation_army_donation_values_2016.pdf
- https://cdn.shopify.com/s/files/1/0446/7671/0563/files/chapter_2_great_gatsby.pdf
- https://cdn.shopify.com/s/files/1/0439/2108/0475/files/buwowigomirovop.pdf
- https://cdn.shopify.com/s/files/1/0429/7241/4106/files/12112957442.pdf
- https://cdn.shopify.com/s/files/1/0440/9799/4904/files/definition_of_liberation_theology.pdf
- https://cdn.shopify.com/s/files/1/0430/6088/7705/files/71950448731.pdf
- https://cdn.shopify.com/s/files/1/0430/6049/4485/files/27428612457.pdf
- https://cdn.shopify.com/s/files/1/0436/4442/0246/files/sinulafoj.pdf
- https://cdn.shopify.com/s/files/1/0433/5697/9351/files/real-_time_labor_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/3459/8809/files/petukekekilevubibudiw.pdf
- https://cdn.shopify.com/s/files/1/0430/9408/1687/files/10038493012.pdf
- https://cdn.shopify.com/s/files/1/0429/3797/4940/files/jolly_phonics_word_list.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_off00007878.bin` `93769a46c98715a6beea7be733f23e0ba48a7ec7d7ff6d7df0e6d02e5c838118`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7878	5432 bytes
`font_01_sfnt_off00008adb.bin` `113037b14be5b0fd2a7a8c77759cd1e6091a65fc5000174808ad695ccbb5398b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ADB	9684 bytes

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