PDF malware analysis — malicious · 3488e2a75ec602eb

MALICIOUS

PDF

46.1 KB Created: 2020-08-09 13:23:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 023398c60877be6235a444c8b6acee35 SHA-1: 74c4e8324bdff2f35dace6d66b0a7746f47f8ca1 SHA-256: 3488e2a75ec602eb63ab722a0b75894b0cfa84df038048e54a9bb88e7e40992c

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, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site, likely for phishing or malware delivery.

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=roger+federer+book+pdf
- http://files.andywalkerart.com/uploads/1/3/0/9/130970008/2051058.pdf
- http://jalaga.lccretail.com/uploads/1/3/1/4/131482853/5541176.pdf
- http://files.amuse.si/uploads/1/3/1/6/131607712/wadakilu_nekega_mapevu_wodopefo.pdf
- https://cdn.shopify.com/s/files/1/0429/1028/5990/files/centralized_air_conditioning_system.pdf
- https://cdn.shopify.com/s/files/1/0440/4379/6645/files/25944595086.pdf
- https://cdn.shopify.com/s/files/1/0435/1744/4264/files/72567282035.pdf
- https://cdn.shopify.com/s/files/1/0430/6275/5490/files/malemimukozib.pdf
- https://cdn.shopify.com/s/files/1/0433/2044/3045/files/big_bang_theory_physical_science.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/pifiremarimupolikumo.pdf
- https://cdn.shopify.com/s/files/1/0437/3463/0554/files/75899922185.pdf
- https://cdn.shopify.com/s/files/1/0435/1275/8426/files/10620128760.pdf
- https://cdn.shopify.com/s/files/1/0433/4305/2953/files/genekimakokeseru.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24803542318.pdf
- https://cdn.shopify.com/s/files/1/0433/2647/2345/files/35466450310.pdf
- https://cdn.shopify.com/s/files/1/0432/9983/1966/files/online_to_excel_converter_multiple_files.pdf
- https://cdn.shopify.com/s/files/1/0428/6342/7751/files/80296741521.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/
- https://cdn.shopify.com/s/files/1/0428/5900/4070/fi

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006d2b.bin` `bd9f45ab8dad657a558421299179473a7005fca85f87dec5a9d3349609c2b165`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D2B	5000 bytes
`font_01_sfnt_off00007e45.bin` `1796bfc4b972508cbfe00d17337f250ac2fafe8917986cbb7a0f959020c25a6e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E45	14648 bytes

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