PDF malware analysis — malicious · a4a2f3fd19d8d9e5

MALICIOUS

PDF

40.8 KB Created: 2020-08-05 02:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c09efaa4c9cf2007d5351a7c1a56d577 SHA-1: 9445c61fcc2aec11aaf963803f89a8429dce0e02 SHA-256: a4a2f3fd19d8d9e5621073f88125fcf54af9189e28d6bb51e4d4e29d918aa080

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to external PDFs hosted on Shopify. One critical heuristic identified a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=speed+velocity+and+acceleration+problems+with+answers+pdf'. This suggests the document is designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent.

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/pify?keyword=speed+velocity+and+acceleration+problems+with+answers+pdf
- http://files.southgateanimalhospital.ca/uploads/1/3/1/4/131454221/7703610.pdf
- http://files.maniladays.com/uploads/1/3/1/4/131438848/5423177.pdf
- http://liriki.signaturetitleservices.net/uploads/1/3/1/3/131384635/mixivikekalipej-kebivawufuxe-masuxabi.pdf
- http://files.rainworkskenya.org/uploads/1/3/1/4/131454523/fetolumaw.pdf
- https://cdn.shopify.com/s/files/1/0429/9338/5633/files/87482019767.pdf
- https://cdn.shopify.com/s/files/1/0431/6381/1999/files/pavisunezeb.pdf
- https://cdn.shopify.com/s/files/1/0434/2362/9477/files/63781613105.pdf
- https://cdn.shopify.com/s/files/1/0428/7964/7903/files/garebewexuwuwagoxefo.pdf
- https://cdn.shopify.com/s/files/1/0438/5511/8501/files/kobeletunulosu.pdf
- https://cdn.shopify.com/s/files/1/0431/6289/4498/files/54814143069.pdf
- https://cdn.shopify.com/s/files/1/0433/0595/9574/files/2044177804.pdf
- https://cdn.shopify.com/s/files/1/0431/8514/3965/files/bederaxakukab.pdf
- https://cdn.shopify.com/s/files/1/0437/1926/2357/files/online_editor_freeware.pdf
- https://cdn.shopify.com/s/files/1/0430/8670/8889/files/98731393800.pdf
- https://cdn.shopify.com/s/files/1/0429/7388/8671/files/16624456805.pdf
- https://cdn.shopify.com/s/files/1/0431/7793/5004/files/3021945568.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_off0000613b.bin` `67d87ada636af9c2d86f57462f3625dc1a2f722d264d54abe977d014ff1ecfb4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x613B	5892 bytes
`font_01_sfnt_off00007532.bin` `a5ca73defcc25802222beca90a640fa6ffea15159be4c18c7055876caff0aaf2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7532	9616 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.