PDF malware analysis — malicious · 1eb8e285507496c1

MALICIOUS

PDF

40.9 KB Created: 2020-08-19 04:52:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5baa35bab667883a3a013b958f894cde SHA-1: dfe6a7105b8e0435b4104448d1b5bb20dc11d168 SHA-256: 1eb8e285507496c14dc9e30b3210a724a57cab48739e7c286278473accb769b7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to Shopify domains hosting other PDFs, suggesting an SEO link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body is heavily obfuscated and contains the redirector URL, indicating an attempt to disguise the malicious intent. No scripts were extracted from this sample.

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=animation+dope+sheet
- http://runok.sajecorp.com/uploads/1/3/1/3/131380600/8439824.pdf
- http://notim.ambermaslen.com/uploads/1/3/0/9/130969559/nadaz.pdf
- https://cdn.shopify.com/s/files/1/0434/2795/4853/files/jukejigarulufanirod.pdf
- https://cdn.shopify.com/s/files/1/0428/6811/3574/files/night_parade_of_100_demons_anime.pdf
- https://cdn.shopify.com/s/files/1/0437/6687/4266/files/29291621147.pdf
- https://cdn.shopify.com/s/files/1/0435/9569/4239/files/bigoguxino.pdf
- https://cdn.shopify.com/s/files/1/0429/5196/6873/files/amenagement_du_territoire_en_cote_d_ivoire.pdf
- https://cdn.shopify.com/s/files/1/0434/6331/1513/files/anova_sous_vide.pdf
- https://cdn.shopify.com/s/files/1/0429/0733/6867/files/lubovibotokane.pdf
- https://cdn.shopify.com/s/files/1/0434/4994/2176/files/gekivi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27482348981.pdf
- https://cdn.shopify.com/s/files/1/0437/2486/5685/files/animal_blood_groups.pdf
- https://cdn.shopify.com/s/files/1/0429/7578/9215/files/2418908951.pdf
- https://cdn.shopify.com/s/files/1/0430/8697/1033/files/calculator_program_in_android_using_switch_case.pdf
- https://cdn.shopify.com/s/files/1/0431/0653/3527/files/rosijerixurojix.pdf
- https://cdn.shopify.com/s/files/1/0435/5771/6117/files/vector_email_signature_templates.pdf
- https://cdn.shopify.com/s/files/1/0434/9899/5878/files/60003130952.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_off00006419.bin` `2c39449b4ed059ea2d142147a2668088f1d6d53c78c057de93a154df4b607a6f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6419	5060 bytes
`font_01_sfnt_off0000751c.bin` `d1941e507bb72441452bf6c1bb2bc0298d30454d08b90f03146d43b1a4f88140`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x751C	9944 bytes

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