PDF malware analysis — malicious · b76cb2c579aebe33

MALICIOUS

PDF

52.9 KB Created: 2020-07-23 08:18:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 78c3d7b63888b438b225edec32d2459b SHA-1: a85d346043e9647d1c93ff8483e41866bd3bbd47 SHA-256: b76cb2c579aebe33cc5f0dc3ffadb8fb11c1e537cbde0039ee1a586ec9607af7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. Another critical heuristic identified a PDF link farm hosted on cdn.shopify.com, suggesting a coordinated effort to distribute malicious content or engage in SEO poisoning. The document body, though heavily obfuscated, contains keywords related to 'postnatal complications pdf' and application metadata, which are likely lures.

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/wb?keyword=postnatal%20complications%20pdf
- http://files.ifafrog.com/uploads/1/3/1/8/131857650/8037009.pdf
- http://files.marcleverettephotography.com/uploads/1/3/1/4/131409200/kiwovulej-zufuxemowedani.pdf
- http://files.lexiweege.com/uploads/1/3/0/7/130739239/270c42059f01.pdf
- http://files.chantrydancecompany.org/uploads/1/3/1/4/131437158/bebd5c92.pdf
- http://files.cranberryportage.net/uploads/1/3/0/8/130874658/bikinos.pdf
- https://cdn.shopify.com/s/files/1/0437/2011/4331/files/lifutezorubufokabidurodeb.pdf
- https://cdn.shopify.com/s/files/1/0432/5661/0969/files/paxuge.pdf
- https://cdn.shopify.com/s/files/1/0433/6631/8230/files/fibeze.pdf
- https://cdn.shopify.com/s/files/1/0430/4083/3690/files/sisejateritufurifi.pdf
- https://cdn.shopify.com/s/files/1/0431/8003/2160/files/76305559530.pdf
- https://cdn.shopify.com/s/files/1/0437/9371/1265/files/96421019061.pdf
- https://cdn.shopify.com/s/files/1/0437/9371/1265/files/lewobovibe.pdf
- https://cdn.shopify.com/s/files/1/0430/3205/1873/files/tujabomovipe.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pigagijewunafusigiku.pdf
- https://cdn.shopify.com/s/files/1/0428/0595/2671/files/tudezuxulazel.pdf
- https://cdn.shopify.com/s/files/1/0433/3663/0422/files/39156193133.pdf
- https://cdn.shopify.com/s/files/1/0430/3070/8375/files/wagopuwurebemo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wurawosupamajo.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_off0000895b.bin` `a917bf6f70e8648aee52acb5d1b03b11948f3af040f792cdcf035e522c6458de`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x895B	4876 bytes
`font_01_sfnt_off000099ce.bin` `9c310ad1bd63bab907ef28b0832e4613f1cc082ee59f616554a0174113d2abef`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99CE	14088 bytes

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