PDF malware analysis — malicious · 27f948db321a024a

MALICIOUS

PDF

45.2 KB Created: 2020-08-30 10:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b40f9ba9717a0330baab79ea24455452 SHA-1: 71846f0acb2ba1d2a410758f6198b9d338d96ce9 SHA-256: 27f948db321a024ae2886d8d65417e298e5626156fd0fb6ad4b5de13a62c7cda

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, including a redirector to a known malicious domain. The document body, though obfuscated, contains the URL https://ttraff.cc/wix?keyword=ethanoic+acid+structure+diagram, which is flagged as a malicious redirector. This suggests the PDF is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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/wix?keyword=ethanoic+acid+structure+diagram
- https://cdn.shopify.com/s/files/1/0434/1504/4252/files/sinedeludijit.pdf
- https://cdn.shopify.com/s/files/1/0428/3065/9750/files/fozaz.pdf
- https://cdn.shopify.com/s/files/1/0431/7075/8816/files/67155522524.pdf
- https://static.usrfiles.com/ugd/63d3ad_538a09a716a342458543c8f4130415ed.pdf
- https://static.usrfiles.com/ugd/b8c837_41934b2beee5442ca25610b90fd6c930.pdf
- https://static.usrfiles.com/ugd/b8c837_3d6c68ede7ab4d0985bd823f7434ac85.pdf
- https://static.usrfiles.com/ugd/b8c837_396a42f591524d1b83156bef42351dca.pdf
- https://static.usrfiles.com/ugd/accd1f_ff8d209dacfa407ea621903c334d9b24.pdf
- https://static.usrfiles.com/ugd/b3bc21_87d0015f44cf4b4e90a708e9a51b1a40.pdf
- https://static.usrfiles.com/ugd/16a96a_cc14a9c5f8fd4674bd284b4e2ea3a7f0.pdf
- https://static.usrfiles.com/ugd/fd3290_6a2bf5818e1946e7804704d6872423d6.pdf
- https://static.usrfiles.com/ugd/b8c837_f1ecf845b4e84769b685920271feb4ac.pdf
- https://static.usrfiles.com/ugd/b8c837_f139695ee2484889a870e9f9d6725a17.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_off00005ea8.bin` `e626a4283fcfbc224d0a91bd1ed62a90f45c79e38d97a4b625d947abee68eb85`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EA8	5280 bytes
`font_01_sfnt_off00007067.bin` `759c61627196ad247f77f92be511ffd027fe03015a09f2c170451995690e4788`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7067	10108 bytes
`font_02_sfnt_off0000932d.bin` `dfdc6983d3c42b81f9741fa6cdceaab3e97c1fbda00e6274acf933e6ff911e94`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x932D	16100 bytes

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