Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd08f15c685eba89…

MALICIOUS

PDF

44.3 KB Created: 2020-07-31 20:21:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43e62746f6dc65033d57f47388a984b4 SHA-1: 26d3a57aef8ff42c32bdcdfcbe1ce46a500292d5 SHA-256: cd08f15c685eba89ddae8befe513e9df6518562fbb2d5ab24bb8b4956995085e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One of the primary links redirects to malicious infrastructure at 'ttraff.cc'. This indicates a likely attempt to lure users to malicious content through a deceptive document.

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.cc/pify?keyword=cross+hair+png
    • http://files.sgdpress.com/uploads/1/3/2/8/132815748/3073474.pdf
    • http://files.ordinarymiraclescaninerescue.org/uploads/1/3/0/9/130969659/naxubovizotimen_kazoxavodeg.pdf
    • http://files.holisticperformancenutrition.com/uploads/1/3/1/4/131437886/a261d276ccae4b0.pdf
    • http://files.sagemitigation.com/uploads/1/3/0/8/130873872/zazifogap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/82340323212.pdf
    • https://cdn.shopify.com/s/files/1/0432/1571/6513/files/7858572551.pdf
    • https://cdn.shopify.com/s/files/1/0428/8079/4790/files/23213737220.pdf
    • https://cdn.shopify.com/s/files/1/0429/0124/2022/files/vemasirewakeliketupo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8640/5022/files/vikozifafija.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/18512070211.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.pdf
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/xisigupipojugopawawa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2373/6725/files/zepodeto.pdf
    • https://cdn.shopify.com/s/files/1/0428/1306/3327/files/39341850047.pdf
    • https://cdn.shopify.com/s/files/1/0435/6017/3717/files/87424701847.pdf
    • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/betepugatesusanidimig.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/9249325924.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_off00007170.bin
5f6d1d3ce5843edc4204480ab9cb267a8b6c1987ffd8ee24b9c8b83032d6839e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7170 4952 bytes
font_01_sfnt_off0000823f.bin
663330e3e263b6bf19e7d63bc95ee1384700298dcf9a59c260bec24a66979361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x823F 9708 bytes

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