PDF malware analysis — malicious · a76d466c02cbe4f3

MALICIOUS

PDF

48.8 KB Created: 2020-08-22 12:28:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6bd781c88a0072e5452e1af914094d33 SHA-1: 97fee77c884b19772431515f2e6dbe0e77799c6f SHA-256: a76d466c02cbe4f3951099437fdd3d006eb4e0a677cc626882935628aab316d2

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to domains associated with redirectors or link farms. The document body, though heavily obfuscated, contains text fragments suggesting lures related to game guides and job appointments. The primary malicious URL identified is ttraff.ru, which is flagged as a malicious redirector. The presence of numerous links, including those to potentially compromised Shopify domains and other suspicious hosts, indicates a campaign to drive traffic to malicious infrastructure.

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=osrs+construction+guide+1-+50
- http://bomuleb.bossertdredge.com/uploads/1/3/0/7/130775934/d533e25cc23.pdf
- http://pepetesan.principalwest.com/uploads/1/3/1/8/131856554/04166a29754.pdf
- http://files.ionamccuaig.co.uk/uploads/1/3/1/3/131379134/0f8fa.pdf
- https://cdn.shopify.com/s/files/1/0444/3560/3623/files/jupuzositunijopo.pdf
- https://cdn.shopify.com/s/files/1/0428/6801/5260/files/buxebadosuw.pdf
- https://cdn.shopify.com/s/files/1/0433/9505/5766/files/51259026463.pdf
- https://cdn.shopify.com/s/files/1/0433/8502/8775/files/36766488943.pdf
- https://cdn.shopify.com/s/files/1/0439/2773/2379/files/kata_bassai_sho.pdf
- https://cdn.shopify.com/s/files/1/0430/3237/9545/files/jelina.pdf
- https://cdn.shopify.com/s/files/1/0433/7926/1590/files/job_appointment_letter_sample.pdf
- https://cdn.shopify.com/s/files/1/0430/3575/4650/files/best_small_size_android_smartphone.pdf
- https://cdn.shopify.com/s/files/1/0430/0944/1953/files/41643554566.pdf
- https://cdn.shopify.com/s/files/1/0428/6365/7119/files/30380361795.pdf
- https://cdn.shopify.com/s/files/1/0436/8377/4614/files/xebagesokirubagimuwur.pdf
- https://cdn.shopify.com/s/files/1/0429/3260/0985/files/85241710925.pdf
- https://cdn.shopify.com/s/files/1/0430/5253/1869/files/xodaxukit.pdf
- https://cdn.shopify.com/s/files/1/0438/6314/6656/files/88736967785.pdf
- https://cdn.shopify.com/s/files/1/0462/4442/9984/files/bemenunonorujegirufule.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_off00007bb6.bin` `3f9b69788a6ab55a410ac08ef18555ca4ff8c45273f3972010eb8b3756eb5efc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BB6	5240 bytes
`font_01_sfnt_off00008da4.bin` `bfd7d3ca4b91970557cb56ff7d1dc66d3cd167a0d8960d3fd2a848c7c9dd7041`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DA4	12892 bytes

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