PDF malware analysis — malicious · f47b35c503c6fded

MALICIOUS

PDF

47.5 KB Created: 2020-08-04 10:09:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 051ee332f539863c74c0fa8c0a223eba SHA-1: 9e68c7420cbd7113808faa537047d32228470e80 SHA-256: f47b35c503c6fded6e74fed65e349ec56632d799ad31b31bfa1a83034fdd89b2

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and mentions 'Actinobacillus suis pdf', suggesting a lure. The PDF also contains a mass external PDF link farm, with many links hosted on shopify.com, indicating a potential SEO poisoning or link farm strategy to distribute malicious content. 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.com/pify?keyword=actinobacillus+suis+pdf
- http://files.well-estar.com/uploads/1/3/2/6/132682851/pejujasamevufizoto.pdf
- http://files.puzzlingclockz.net/uploads/1/3/1/8/131856129/f06279016.pdf
- http://files.windofgreatspirithealing.com/uploads/1/3/1/6/131607131/popuxezabuja.pdf
- https://cdn.shopify.com/s/files/1/0428/2574/4547/files/27092865144.pdf
- https://cdn.shopify.com/s/files/1/0431/1253/0081/files/93528161383.pdf
- https://cdn.shopify.com/s/files/1/0432/4956/5853/files/kikimoxaweke.pdf
- https://cdn.shopify.com/s/files/1/0432/2784/0675/files/filthy_pride_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0430/3778/6266/files/wupivinugagulotawalilu.pdf
- https://cdn.shopify.com/s/files/1/0435/5060/5461/files/96664355819.pdf
- https://cdn.shopify.com/s/files/1/0431/5453/8658/files/71643669656.pdf
- https://cdn.shopify.com/s/files/1/0434/5122/0134/files/xodupidunezar.pdf
- https://cdn.shopify.com/s/files/1/0431/7066/0508/files/fadufosibidedojazorol.pdf
- https://cdn.shopify.com/s/files/1/0438/2015/5037/files/18917096603.pdf
- https://cdn.shopify.com/s/files/1/0431/5535/7852/files/wavimomiginu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdf
- https://cdn.shopify.com/s/files/1/0437/6012/4061/files/6788102344.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_off00006f80.bin` `3abf2eea3982866feeda1ad556af0b5ef5a3915db88c1d04776500155723d536`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F80	4948 bytes
`font_01_sfnt_off0000804a.bin` `1da5f1f6787f8bbb9cf591b715243e1a1506d4da0d3535e90053d2bce2ee67a7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x804A	10240 bytes
`font_02_sfnt_off0000a354.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA354	4324 bytes

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