PDF malware analysis — malicious · b59920148c086f81

MALICIOUS

PDF

36.5 KB Created: 2020-08-07 02:31:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 938ce18f2496f86a0ec80e2c8c7d11cd SHA-1: 50e0bd0e84f401d69de7e6c628de6ecc9770e807 SHA-256: b59920148c086f81d0039f7186ed16c7eae418b5b664f01fff746433bd4834e1

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to trick users into clicking it. The PDF also contains a mass external PDF link farm, with many links hosted on cdn.shopify.com, indicating a potential SEO poisoning or link farm tactic to distribute malicious content.

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=anthem+bcbs+ga+prior+authorization+form+pdf
- http://files.jenniferjoseph.org/uploads/1/3/1/8/131856852/relutelofapalejuzoz.pdf
- http://files.markcraiggallery.com/uploads/1/3/0/8/130874305/8187bb233ffd5.pdf
- http://files.kleinspainted.com/uploads/1/3/1/3/131382595/zojozasibulepak.pdf
- https://cdn.shopify.com/s/files/1/0429/2821/0073/files/xerot.pdf
- https://cdn.shopify.com/s/files/1/0438/0295/1842/files/59237405205.pdf
- https://cdn.shopify.com/s/files/1/0434/7972/8281/files/honda_cr80_service_manual_free_download.pdf
- https://cdn.shopify.com/s/files/1/0429/5147/5351/files/69398579811.pdf
- https://cdn.shopify.com/s/files/1/0430/5816/7959/files/14979509357.pdf
- https://cdn.shopify.com/s/files/1/0433/3089/6026/files/51294796282.pdf
- https://cdn.shopify.com/s/files/1/0429/1824/8601/files/4834243677.pdf
- https://cdn.shopify.com/s/files/1/0428/0087/3631/files/91261009444.pdf
- https://cdn.shopify.com/s/files/1/0434/3159/2088/files/liwofodewowiga.pdf
- https://cdn.shopify.com/s/files/1/0431/6656/4520/files/duxisesunoxa.pdf
- https://cdn.shopify.com/s/files/1/0436/3599/8880/files/mutedetemopanet.pdf
- https://cdn.shopify.com/s/files/1/0433/0641/8331/files/upcoming_bank_exams_2020_20_full_list.pdf
- https://cdn.shopify.com/s/files/1/0445/8138/8452/files/reconstructing_native_american_population_history.pdf
- https://cdn.shopify.com/s/files/1/0432/5205/6227/files/5470444844.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://cdn.shopify.com/s/files/1/043

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000050b4.bin` `490d45a902823c4457b72a9de38bf965b2dfc10dac436dceeca07bab00fcdbce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x50B4	5716 bytes
`font_01_sfnt_off00006407.bin` `51b9113bc9a2f72a6fec4d8f2693e3e0265a9aa20c152d4e428792147dc609e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6407	9620 bytes

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