Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02b850fff5a5a12…

MALICIOUS

PDF

57.3 KB Created: 2020-08-04 19:07:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bdca9dde335cbb30af976fa61b3db94 SHA-1: f80102ea8ed84ce89435002002bb6bd368142e09 SHA-256: c02b850fff5a5a12a81b24a48854356cb041efc4dc6cff4a3b5b5c3013f98cc3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm designed to manipulate search engine results or distribute further malicious content. No scripts were extracted from this sample.

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=goalkeeper+drills+pdf
    • http://files.eastbudleigh.org.uk/uploads/1/3/1/4/131407465/zosedomopoliz.pdf
    • http://files.brittanyritter.com/uploads/1/3/0/9/130969352/xofijazerik-sojikuviz-benututevug-jokuzu.pdf
    • http://files.johnblanke.com/uploads/1/3/2/7/132710624/mevavure.pdf
    • http://files.jackandjillcharlottechapter.com/uploads/1/3/1/4/131455621/tawaf-kipusefu-wizebupipareda.pdf
    • http://www.PerfectSoccerSkills.com/Quiz
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57308776079.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/57603988573.pdf
    • https://cdn.shopify.com/s/files/1/0437/3705/5393/files/9554426698.pdf
    • https://cdn.shopify.com/s/files/1/0430/5757/8137/files/92684309715.pdf
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/49561712846.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/95101033198.pdf
    • https://cdn.shopify.com/s/files/1/0431/8612/7009/files/75768556930.pdf
    • https://cdn.shopify.com/s/files/1/0434/8638/0189/files/36220138413.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/74716289505.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/korofupisezevanujolibeke.pdf
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/64039771535.pdf
    • https://cdn.shopify.com/s/files/1/0437/3531/8689/files/xijapaguvipumilu.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.

FilenameKindSourceSize
font_00_sfnt_off0000a469.bin
a66f625baacd4dfe8674483e4958510227d6edcb54471c62b506974ea7e75c23		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA469 5132 bytes
font_01_sfnt_off0000b5f1.bin
5d05be06c82cc69fb1e7f27057714c0dbd69cd23ae38c7487d200e880ac21fce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5F1 9984 bytes

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