PDF malware analysis — malicious · 7e0d200847336697

MALICIOUS

PDF

82.3 KB Created: 2020-08-12 02:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7b37e7b2bf7b391853a12a3746c5c7c8 SHA-1: c95b5df0ab3e752371f36075b885a6f80d6cf388 SHA-256: 7e0d20084733669793f7acd4299e9c2b173a7faba12cc93d6f9759cefc5905ab

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains a prominent link to a known malicious redirector, ttraff.com, disguised as a link to 'behavioural therapy techniques pdf'. This indicates a phishing or social engineering attempt to redirect the user to malicious infrastructure. The file also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to obscure the true malicious destination. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

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=behavioural+therapy+techniques+pdf
- http://files.athensprep.org/uploads/1/3/0/7/130775304/bonuda.pdf
- http://files.dagomardegroot.com/uploads/1/3/0/7/130738771/kiterogixolige.pdf
- http://files.suegreenhampiano.com/uploads/1/3/1/8/131857758/zemolezitijowe-naxip.pdf
- http://files.christinesmyczynski.com/uploads/1/3/2/7/132712093/e1e0485f104a.pdf
- https://cdn.shopify.com/s/files/1/0431/2127/9138/files/jaridubimijunevusa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdf
- https://cdn.shopify.com/s/files/1/0430/1458/6521/files/short_rest_dnd.pdf
- https://cdn.shopify.com/s/files/1/0430/0649/2823/files/nulimovosibizarup.pdf
- https://cdn.shopify.com/s/files/1/0431/5247/4267/files/wasoriwip.pdf
- https://cdn.shopify.com/s/files/1/0433/9649/7573/files/certificate_of_service_sample.pdf
- https://cdn.shopify.com/s/files/1/0450/7192/5411/files/nutritional_assessment_tools_for_nurses.pdf
- https://cdn.shopify.com/s/files/1/0440/6666/8694/files/kufixapa.pdf
- https://cdn.shopify.com/s/files/1/0429/5612/8412/files/30270101289.pdf
- https://cdn.shopify.com/s/files/1/0434/0521/3847/files/73496105030.pdf
- https://cdn.shopify.com/s/files/1/0434/6281/9990/files/13068479810.pdf
- https://cdn.shopify.com/s/files/1/0433/9066/4860/files/riwutigeg.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96280370261.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_off00010563.bin` `7f58f71218a6ee53896b7939e1b0074b75d2cef51b31eab2f301dc16338a16ce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10563	5580 bytes
`font_01_sfnt_off00011863.bin` `e6b935f0c82378705fae20d25c98a59665c7fcd4f24d079e793b662c20e9faed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11863	10404 bytes

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