PDF malware analysis — malicious · 98ba01795d455093

MALICIOUS

PDF

52.3 KB Created: 2020-08-05 01:46:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5512fc91e760e82ddaf301960cfb24c5 SHA-1: eed0fffa050aa7d711f4f85a7d3e3675ab83a282 SHA-256: 98ba01795d4550939b21273ac0f95be26897898f0f5cc3d3c5af8b55a432615f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation to increase visibility of malicious content. The primary malicious URL is 'https://ttraff.com/pify?keyword=treatise+on+invertebrate+paleontology+brachiopoda+pdf'.

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/pify?keyword=treatise+on+invertebrate+paleontology+brachiopoda+pdf
- http://files.cos-con.com/uploads/1/3/1/8/131856725/b60ba7c023.pdf
- http://files.offthebeamwoodworking.com/uploads/1/3/2/7/132741241/3258039.pdf
- http://files.allnationscoast.net/uploads/1/3/1/4/131438167/kagorokotojaja.pdf
- http://files.sbtindy.org/uploads/1/3/0/8/130814923/1d42e5.pdf
- https://cdn.shopify.com/s/files/1/0437/4783/6058/files/63362488462.pdf
- https://cdn.shopify.com/s/files/1/0434/4384/7328/files/powowakiwojaxebize.pdf
- https://cdn.shopify.com/s/files/1/0430/0364/2007/files/buy_roblox_exploits.pdf
- https://cdn.shopify.com/s/files/1/0431/1695/3767/files/nekepekixaparatun.pdf
- https://cdn.shopify.com/s/files/1/0430/8959/2473/files/tulogexowutepowu.pdf
- https://cdn.shopify.com/s/files/1/0428/3426/4231/files/56952948326.pdf
- https://cdn.shopify.com/s/files/1/0433/6631/8230/files/wuxegizijemazulekikoj.pdf
- https://cdn.shopify.com/s/files/1/0438/5007/2224/files/wawegekipo.pdf
- https://cdn.shopify.com/s/files/1/0431/1370/9722/files/12965342809.pdf
- https://cdn.shopify.com/s/files/1/0434/9798/0056/files/pugurojuga.pdf
- https://cdn.shopify.com/s/files/1/0430/0016/8597/files/96154601201.pdf
- https://cdn.shopify.com/s/files/1/0430/2631/7473/files/wisixuzid.pdf
- https://cdn.shopify.com/s/files/1/0431/2485/0842/files/siverefewajefotuxumajav.pdf
- https://cdn.shopify.com/s/files/1/0441/1123/3176/files/bstc_answer_key_download.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_off00008dc2.bin` `337ecf99a29a9d3eaa2dba27cda3014a60e02fb9eef958e5d80011db6809ae2f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DC2	5668 bytes
`font_01_sfnt_off0000a10b.bin` `e0cd0709b98e214d7f7ed78be8cababa0c813b002153fd7b019f9e4fc5434983`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA10B	10028 bytes

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