PDF malware analysis — malicious · 290aa0b4c53412b1

MALICIOUS

PDF

72.1 KB Created: 2020-08-11 13:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7f202608fd7d3b432ff2199164ffef26 SHA-1: 78c2416aefa1d63e8b133861b18cb22593de8bf5 SHA-256: 290aa0b4c53412b153284a540d840d41c6fb4dd7fd9131704f3877df570d6488

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous links, identified as a link farm, pointing to external resources. One of these links, https://ttraff.ru/pify?keyword=java+apache+poi+word+to+pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to Java, Apache POI, and PDF conversion, suggesting a lure to trick users into clicking the malicious link.

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=java+apache+poi+word+to+pdf
- http://files.onefutureatatime.com/uploads/1/3/1/4/131453560/molufegikek.pdf
- http://munatopes.cseventservices.com/uploads/1/3/2/6/132681504/8889348.pdf
- http://files.songarchiveproject.com/uploads/1/3/0/7/130740221/mutowe.pdf
- http://files.szienz.com/uploads/1/3/0/9/130969572/5795890.pdf
- http://files.shepherdscott.com/uploads/1/3/0/9/130969545/7590613.pdf
- https://cdn.shopify.com/s/files/1/0433/5003/2549/files/41199221907.pdf
- https://cdn.shopify.com/s/files/1/0434/1448/7190/files/68288738603.pdf
- https://cdn.shopify.com/s/files/1/0432/2174/5823/files/4965454253.pdf
- https://cdn.shopify.com/s/files/1/0430/0872/1045/files/zogela.pdf
- https://cdn.shopify.com/s/files/1/0438/7926/8520/files/6096769335.pdf
- https://cdn.shopify.com/s/files/1/0431/8996/0865/files/82251328621.pdf
- https://cdn.shopify.com/s/files/1/0431/1390/6333/files/kuvisusawixu.pdf
- https://cdn.shopify.com/s/files/1/0433/6805/4949/files/original_boy_scout_handbook.pdf
- https://cdn.shopify.com/s/files/1/0432/4907/4340/files/diode_digital_logic_gates.pdf
- https://cdn.shopify.com/s/files/1/0428/1391/5303/files/35537138993.pdf
- https://cdn.shopify.com/s/files/1/0433/7840/9622/files/fafusaxivekakozusex.pdf
- https://cdn.shopify.com/s/files/1/0433/5098/2821/files/tiwun.pdf
- https://cdn.shopify.com/s/files/1/0430/7222/5442/files/ratimadojodexukapa.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d450.bin` `85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD450	2828 bytes
`font_01_sfnt_off0000de4a.bin` `afa938c4b2edcfc2d98f9cbd6aeadcf2733b9ff6c6f6f8525ad4fb8ec8ab2974`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDE4A	5172 bytes
`font_02_sfnt_off0000efed.bin` `52af4417c2b8a76f06b469ea29110d33baf86ba3024ac059243837e39f2aa089`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEFED	10096 bytes

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