Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f3a2d7ba6728f7…

MALICIOUS

PDF

38.0 KB Created: 2020-07-25 16:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8edb475292af3e94f1dc38747d07db1a SHA-1: f82c3d6ba3ebed55c43927e7f20332cd38a50fb2 SHA-256: d0f3a2d7ba6728f714928469b816e94ec805481affa6994e736f4de9fb834c57
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary heuristic indicates a malicious redirector link, and the document body, though heavily obfuscated, contains text related to 'season greeting card templates free' which serves as a lure. The file also contains numerous other links to Shopify domains, likely part of the link farm.

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=season+greeting+card+templates+free
    • http://files.mmsdesigner.com/uploads/1/3/0/7/130776511/sulujefolejinodeseji.pdf
    • http://files.juderoseaccountancy.com/uploads/1/3/1/4/131453530/4318875.pdf
    • http://files.biographyofanobody.ca/uploads/1/3/1/4/131406960/motopek_zefumivuzafanuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/22220676300.pdf
    • https://cdn.shopify.com/s/files/1/0436/8728/0790/files/25166127842.pdf
    • https://cdn.shopify.com/s/files/1/0427/8219/5879/files/60875303873.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68736518606.pdf
    • https://cdn.shopify.com/s/files/1/0432/1637/1867/files/wononidefaduxerupe.pdf
    • https://cdn.shopify.com/s/files/1/0428/4514/3207/files/gasujavebidezole.pdf
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/tajaxetenupiwafufivoxotek.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/85982643478.pdf
    • https://cdn.shopify.com/s/files/1/0433/4652/6376/files/31769840462.pdf
    • https://cdn.shopify.com/s/files/1/0428/2476/1510/files/risose.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_off0000586a.bin
d9e9b4bf95d989918a1fb6f9d577d56ea4a01033c70d2f30a48eee49b2979ad3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x586A 5368 bytes
font_01_sfnt_off00006a87.bin
73094e75a21ab537896ac5eb3f3b2a2d4d8f54bf684b14d7be1c991a996e6ab6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A87 9540 bytes

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