PDF malware analysis — malicious · 9802080621d61d1a

MALICIOUS

PDF

43.9 KB Created: 2020-07-19 04:12:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ad1d0496522b7501352e2a1bdb58b769 SHA-1: a8bd86c05ff7b57f47105395215a3f763e751bb9 SHA-256: 9802080621d61d1af2de1855eba78f9e1f15fb1c3faf0acadc1ac861b21e9937

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, appears to be related to educational content, likely a lure. The primary attack pattern involves redirecting users to malicious infrastructure via these links.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=types%20of%20sentences%20worksheet%204th%20grade
- http://files.ecodirectcleaners.com/uploads/1/3/0/7/130738771/1852184.pdf
- http://files.courtneyenos.com/uploads/1/3/1/4/131407067/4625632.pdf
- http://files.villageofhope.us/uploads/1/3/0/9/130969548/1a0402d4197366.pdf
- https://wemesixu.files.wo
- https://tubetepurudu.files.wordpress.com/2020/07/44942636077.pdf
- https://guzobamed.files.wordpress.com/2020/06/28242915023.pdf
- https://fewalavukena.files.wordpress.com/2020/07/jovonubabufitumiwivewad.pdf
- https://disuwilemig.files.wordpress.com/2020/07/46307750657.pdf
- https://bamolimet.files.wordpress.com/2020/07/96879899607.pdf
- https://wemesixu.files.wordpress.com/2020/07/57493260615.pdf
- https://levalinuke.files.wordpress.com/2020/07/musogaluwuzabapugo.pdf
- https://suvajip.files.wordpress.com/2020/06/99873119935.pdf
- https://cdn.shopify.com/s/files/1/0432/5549/6866/files/rutupukigelilona.pdf
- https://cdn.shopify.com/s/files/1/0428/9763/7535/files/tagavufamurutamagufop.pdf
- https://cdn.shopify.com/s/files/1/0430/9617/8849/files/tigepamake.pdf
- https://cdn.shopify.com/s/files/1/0434/3303/3880/files/naboki.pdf
- https://cdn.shopify.com/s/files/1/0432/6490/1270/files/84829014378.pdf
- https://cdn.shopify.com/s/files/1/0427/9291/1007/files/vamidivefowuruwev.pdf
- https://cdn.shopify.com/s/files/1/0427/4028/5607/files/vejowagudupofut.pdf
- https://cdn.shopify.com/s/files/1/0438/4869/5958/files/20064111356.pdf
- https://cdn.shopify.com/s/files/1/0429/8866/7034/files/59375382057.pdf
- https://cdn.shopify.com/s/files/1/0432/7217/5781/files/zebemigaditukasobo.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_off00006cdb.bin` `b8d968fe91f63d4a6c86d2f11716ba0e97e07810edaa409c01f96648a456a15e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CDB	5420 bytes
`font_01_sfnt_off00007f5d.bin` `7a32db2b7a82571f3fa233f0adb121fc1885b528a5ab00ae02f793457cc6f4c5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F5D	10124 bytes

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