PDF malware analysis — malicious · aca057e33e79c4b7

MALICIOUS

PDF

48.5 KB Created: 2020-07-15 04:29:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6f1f1bf787dfe5549b95b37971e65d49 SHA-1: 42281e46b5a27e149e2f538a1a7e95eed08a6af7 SHA-256: aca057e33e79c4b7479934b91dbafa6777df66178438997288d0d1d9189580ba

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links directs to a known malicious redirector at ttraff.com. The document body is heavily obfuscated and appears to be junk data, suggesting the primary purpose is to host these malicious links.

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/wb?keyword=diffusion%20and%20osmosis%20lab%20pdf%20answers
- http://files.forgivenphotographymn.com/uploads/1/3/1/3/131398515/8082352.pdf
- http://files.cassidyraegaiter.com/uploads/1/3/0/8/130813616/xufukudisonix.pdf
- http://files.nileshsp.com/uploads/1/3/0/7/130776655/rafemibolisijas.pdf
- https://cdn.shopify.com/s/files/1/0433/7899/9446/files/lezivolasuti.pdf
- https://cdn.shopify.com/s/files/1/0428/0903/2863/files/80543629520.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesitoxerevujadutag.pdf
- https://ponevigafoti.files.wordpress.com/2020/06/genowunikozabegaju.pdf
- https://pikilaguse.files.wordpress.com/2020/06/bakikipelobenip.pdf
- https://kedewemu291756887.files.wordpress.com/2020/06/49578063774.pdf
- https://keronurefaze.files.wordpress.com/2020/07/lixopitudifosan.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zemeletitofugawekabol.pdf
- https://cdn.shopify.com/s/files/1/0430/2834/9079/files/29840541096.pdf
- https://cdn.shopify.com/s/files/1/0431/2766/8890/files/xobesejajoda.pdf
- https://cdn.shopify.com/s/files/1/0429/8863/4263/files/nugarisivuzasabojeb.pdf
- https://cdn.shopify.com/s/files/1/0429/8991/2218/files/lizakitopukusegaku.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/siwizobudavegi.pdf
- https://cdn.shopify.com/s/files/1/0428/7827/1641/files/1575207852.pdf
- https://cdn.shopify.com/s/files/1/0431/4251/2791/files/nexilujegu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86662201832.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/
- https://pikilaguse.files.wordpress.com/2020/06/baki

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008016.bin` `9084851399eec68afb8e4b8489188ba37b2ff46c0cf132229ccc1c12af6c6aca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8016	5220 bytes
`font_01_sfnt_off000091bd.bin` `64a531df1db47c069bae497a348c8949c0bf68f75d83b8593dc45247c9f86e2c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91BD	10244 bytes

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