Malicious PDF — malware analysis report

Static analysis result for SHA-256 31a60170fda8905b…

MALICIOUS

PDF

46.2 KB Created: 2020-08-01 14:44:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c5fd97864f6d5dd900c0f8d3de594c9 SHA-1: e9caa230fe6153473ec1a0833b6318b70d324fa4 SHA-256: 31a60170fda8905bb09c4caf4a3e0480c3dd0b6fce9259d614e8648d2322307b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary malicious link, 'https://ttraff.com/pify?keyword=jailbreak+5.+1+1+ipad', is identified as a redirector to potentially harmful content. The document body, though heavily obfuscated, contains references to 'jailbreak 5.1.1 ipad' and the malicious URL, reinforcing the lure.

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=jailbreak+5.+1+1+ipad
    • http://files.ps142m.org/uploads/1/3/1/4/131437530/6377fb0da2.pdf
    • http://files.staceydrago.com/uploads/1/3/1/8/131871951/190565.pdf
    • http://files.kogumasamune.co/uploads/1/3/1/8/131856108/7f062389e4.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/sunopozeke.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/ponebevi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/65250282147.pdf
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/90763577251.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/fogetosexut.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/nagonobojepadiwob.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/vifasevuzebifonitaretevu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7685/3664/files/fawuvafurif.pdf
    • https://cdn.shopify.com/s/files/1/0429/5560/4121/files/34900979982.pdf
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/tuxezekenunozomujifojed.pdf
    • https://cdn.shopify.com/s/files/1/0432/0237/9939/files/57463495640.pdf
    • https://cdn.shopify.com/s/files/1/0429/5009/9107/files/zifeji.pdf
    • https://cdn.shopify.com/s/files/1/0435/3032/2071/files/nixowupodasof.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_off000076d7.bin
075457d1f87ad3b1add6f88734cfe8c3e8f15fb79c838099eb1e0bfb5071948e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76D7 5176 bytes
font_01_sfnt_off00008888.bin
4e225dfae63374e46877a1f8a83c1b55188c4e3b16ede531f7339056cdc9fd2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8888 10508 bytes

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