PDF malware analysis — malicious · 829fddd98866a80d

MALICIOUS

PDF

63.7 KB Created: 2020-09-06 00:13:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8d2a3b75a997719b1ebb2fd4472823f0 SHA-1: fe91feb99524fd355f14c86ab85134461f433da3 SHA-256: 829fddd98866a80dd21a75d2f6e6e08037123dd4c7ffa1ea16b79cf89f153c6f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is an 'accounting attachment report'. The primary malicious URL is ttraff.link, which likely leads to further malicious content. The file also contains a large number of links to Shopify-hosted PDFs, likely an attempt to blend in or use legitimate infrastructure for hosting.

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.link/wix?keyword=accounting+attachment+report+pdf+zimbabwe
- https://cdn.shopify.com/s/files/1/0453/5720/3611/files/vosewadupomuzewepagefuniw.pdf
- https://cdn.shopify.com/s/files/1/0432/4481/4500/files/countries_and_nationalities_exercises_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0461/9282/0382/files/elco_thision_s_test.pdf
- https://cdn.shopify.com/s/files/1/0437/8768/1954/files/juvafukifigadepenufene.pdf
- https://cdn.shopify.com/s/files/1/0451/7891/2917/files/experian_free_credit_report_review.pdf
- https://cdn.shopify.com/s/files/1/0440/2203/8686/files/supplement_bottle_mockup_template.pdf
- https://cdn.shopify.com/s/files/1/0429/0409/2839/files/aarti_sangrah_lyrics_in_marathi.pdf
- https://cdn.shopify.com/s/files/1/0433/9056/6556/files/2020_quarterly_calendar_template.pdf
- https://static.usrfiles.com/ugd/b8c837_497dc99242c144dbba8b873bab2c1a97.pdf
- https://static.usrfiles.com/ugd/ce0e6d_7769fea8aac746908128c134dd23b1db.pdf
- https://static.usrfiles.com/ugd/6908d7_63f4e0ca19d44095a2509fee3facdc75.pdf
- https://static.usrfiles.com/ugd/02ccf7_737b3e5f8393486ea324f8b416d899a3.pdf
- https://static.usrfiles.com/ugd/03ae60_fe06f76e3f0e4258a0404786a0b4fc29.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000083a5.bin` `7aafb6c35ac1f4af2085cf8c7c5098cf0b768e8d3615015081338a4bc03fe9ba`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83A5	5632 bytes
`font_01_sfnt_off000096c2.bin` `5f07b96a345167f8d597a4b3e1fe0e52dd7a62508af6f8e7b00de7561a89dfc4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x96C2	8976 bytes
`font_02_sfnt_off0000a885.bin` `41f35fbffc04dc1c42ac3d3c4f9ad3f6f9e9af153d795fca66011bcd319be4b8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA885	16448 bytes
`font_03_sfnt_off0000dc47.bin` `1396562ca3b520584892f4bd50ff39b0722e014cdbc1625119a677b71e1270af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC47	16064 bytes

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