Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff321566f2635e05…

MALICIOUS

PDF

33.4 KB Created: 2020-08-22 05:56:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51a745b06d1f7669df4d5a280dde8e7b SHA-1: f2a60e5136a67fe3ad4c63046253e973f67f665d SHA-256: ff321566f2635e0587a86aaaf589bd30996dd3dfaa976d6c85f55df152fdea7e
120 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure for free templates, which is a common social engineering tactic. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, likely to obscure the malicious redirector. 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.cc/pify?keyword=free+intro+templates+without+text
    • http://files.lakesidelabradors.com/uploads/1/3/1/6/131637021/ketawuwej_lemumapopega.pdf
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/zalixotolowilugi.pdf
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/wutokuwitijasixejajagoge.pdf
    • https://cdn.shopify.com/s/files/1/0431/4457/7178/files/dapulumo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/pekapimeg.pdf
    • https://cdn.shopify.com/s/files/1/0459/1924/0341/files/tawogewukunenopugif.pdf
    • https://cdn.shopify.com/s/files/1/0439/2579/9067/files/85578920994.pdf
    • https://cdn.shopify.com/s/files/1/0439/0299/2536/files/22142325706.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dokole.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/jack_and_the_beanstalk_real_story.pdf
    • https://cdn.shopify.com/s/files/1/0431/0758/2106/files/12273289810.pdf
    • https://cdn.shopify.com/s/files/1/0432/2122/1539/files/nexijezip.pdf
    • https://cdn.shopify.com/s/files/1/0430/6747/4087/files/daffynition_decoder_answer_key_page_121.pdf
    • https://cdn.shopify.com/s/files/1/0435/3897/2831/files/nugotifevonukafo.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_off000047d4.bin
e511c00b12262a98c3854fba0974704402ebaac23fb01e6123720e2b592d8420		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47D4 5172 bytes
font_01_sfnt_off0000594e.bin
30fb070308893c75dab3eb16a336ad73637c1550591bafe54420026cbcc87439		 pdf-font-stream PDF embedded font (sfnt) at offset 0x594E 9260 bytes

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