PDF malware analysis — malicious · dcfa583f2874d3d6

MALICIOUS

PDF

46.7 KB Created: 2020-08-13 22:42:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 578f2bce9e94808ea2b50f0c72336125 SHA-1: 3467f0089f34340cfc5d7206a0098446170e8177 SHA-256: dcfa583f2874d3d64ab8d7d0af1b239816919e0111eaa736954afbcebf6c8a0d

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 external PDF files hosted on various domains. One critical heuristic identified a malicious redirector link, and another flagged the document as a link farm. The primary malicious URL is https://ttraff.cc/wb?keyword=tamiya%20monster%20beetle%20manual, which likely serves as a lure to a malicious site. The document body contains garbled text but includes the malicious URL and several benign-looking Shopify URLs, suggesting an attempt to mask the malicious intent.

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/wb?keyword=tamiya%20monster%20beetle%20manual
- http://rabikigib.singing4ourlives.net/uploads/1/3/0/7/130774993/5329123.pdf
- http://files.secretspartanburg.com/uploads/1/3/1/3/131380342/bamiximexizezurufar.pdf
- http://files.ebonydeecheyne.com/uploads/1/3/1/4/131437566/gonupufore.pdf
- http://files.runnerwithin.com/uploads/1/3/1/3/131381078/rononogavo.pdf
- https://cdn.shopify.com/s/files/1/0438/4600/8982/files/legion_tailoring_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/7634/6266/files/rimatizepukupi.pdf
- https://cdn.shopify.com/s/files/1/0434/3880/1061/files/tofugamowarizone.pdf
- https://cdn.shopify.com/s/files/1/0435/8674/8579/files/70044030750.pdf
- https://cdn.shopify.com/s/files/1/0436/9691/4586/files/pukisufukanirame.pdf
- https://cdn.shopify.com/s/files/1/0432/0293/6992/files/tiniw.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/moxudenolaruxorurafugi.pdf
- https://cdn.shopify.com/s/files/1/0436/2944/5273/files/tung_s_orthodox_acupuncture.pdf
- https://cdn.shopify.com/s/files/1/0431/7157/8007/files/3292973084.pdf
- https://cdn.shopify.com/s/files/1/0433/2408/0282/files/70132748752.pdf
- https://cdn.shopify.com/s/files/1/0429/9853/0201/files/98310423854.pdf
- https://cdn.shopify.com/s/files/1/0438/3693/2253/files/16661893196.pdf
- https://cdn.shopify.com/s/files/1/0431/1970/6269/files/66100172465.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_off00006b36.bin` `c716372de67ecf0a1dfeff5509506ad74d3df6d53ddb4e64d8d69fb32f727235`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B36	5020 bytes
`font_01_sfnt_off00007c36.bin` `cc31cb13a178dc8c9130db5be9f0e32b7f4965f515989097fee7f02b8f7f0376`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C36	15392 bytes

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