PDF malware analysis — malicious · a2a29f79f06da436

MALICIOUS

PDF

65.7 KB Created: 2020-08-02 13:28:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bde917586c45411ea59811429c86e5a4 SHA-1: 85dbe1f8859034977f9b97789a6438f7651a59c6 SHA-256: a2a29f79f06da436c130f2b9763ffccb2de6eadf29da32ed3d4417d381898e2f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by a critical heuristic for containing links to known malicious redirector infrastructure, specifically 'https://ttraff.com/pify?keyword=afman+23+110'. Additionally, it exhibits characteristics of a link farm, embedding numerous external PDF links, many hosted on cdn.shopify.com. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and the malicious URL, suggesting a lure to external content.

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.com/pify?keyword=afman+23+110
- http://files.mymonarchs.com/uploads/1/3/1/1/131164568/3ddba6.pdf
- http://files.lakeshorechirony.com/uploads/1/3/2/6/132682295/ninibot_tolaf.pdf
- http://files.shsbballtipoffclub.org/uploads/1/3/1/4/131408056/wotumopazirexejavug.pdf
- http://files.marjazapusek.net/uploads/1/3/0/7/130740323/durosinajopegodefori.pdf
- http://files.darwinsyantipolo.com/uploads/1/3/0/7/130739987/a02c91f6fc.pdf
- https://cdn.shopify.com/s/files/1/0432/2649/7182/files/xepujisupoxikagadawe.pdf
- https://cdn.shopify.com/s/files/1/0431/8828/9694/files/dujenuzomarivilexojozudu.pdf
- https://cdn.shopify.com/s/files/1/0428/0962/2691/files/23047669559.pdf
- https://cdn.shopify.com/s/files/1/0431/0158/5570/files/57001336003.pdf
- https://cdn.shopify.com/s/files/1/0433/4557/6088/files/87015142912.pdf
- https://cdn.shopify.com/s/files/1/0436/7620/5209/files/39066287100.pdf
- https://cdn.shopify.com/s/files/1/0433/3161/6918/files/jawede.pdf
- https://cdn.shopify.com/s/files/1/0438/2484/0861/files/british_english_grammar.pdf
- https://cdn.shopify.com/s/files/1/0428/5631/7091/files/gesarom.pdf
- https://cdn.shopify.com/s/files/1/0432/7650/1147/files/podolomipijuxaxapixemipu.pdf
- https://cdn.shopify.com/s/files/1/0428/7424/1187/files/77208883017.pdf
- https://cdn.shopify.com/s/files/1/0431/8127/7342/files/gupozowerezutiwotilafod.pdf
- https://cdn.shopify.com/s/files/1/0433/1329/9620/files/ferub.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_off0000c549.bin` `49040f50b365b5b9b30bb1d45d8dabff4b16163f5fdec64591bc6aac17afa580`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC549	5084 bytes
`font_01_sfnt_off0000d691.bin` `ea1fac6ae8369c6ade9871ab74cc6513d866576041b9b933b55d7a52757b00c9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD691	10436 bytes

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