Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8894f698242b742…

MALICIOUS

PDF

40.4 KB Created: 2020-08-31 13:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab2edba395347b11f7266cfbe7b61682 SHA-1: c3cfdc1594a30f627bd588234d9a1130ff1ec159 SHA-256: e8894f698242b742fe121d2f93a9f359737ed6cf42dfb88c8ac7514d0056f490
150 Risk Score

Malware Insights

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

The PDF contains a high density of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic, indicating a lure to a potentially harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=ion+cassette+adapter+bluetooth
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/vavire.pdf
    • https://cdn.shopify.com/s/files/1/0437/6032/0669/files/wifin.pdf
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/judea_pearl_causality_book.pdf
    • https://cdn.shopify.com/s/files/1/0440/9029/4437/files/wild_edible_plants.pdf
    • https://cdn.shopify.com/s/files/1/0430/8857/6673/files/microsoft_word_brochure_template.pdf
    • https://cdn.shopify.com/s/files/1/0429/4426/6399/files/72033015152.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/29369326769.pdf
    • https://cdn.shopify.com/s/files/1/0430/0737/7561/files/goluditesa.pdf
    • https://cdn.shopify.com/s/files/1/0437/4760/6679/files/rsse_children_overhaul.pdf
    • https://cdn.shopify.com/s/files/1/0430/3106/8825/files/ruzasumevuvukejadati.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/55312662514.pdf
    • https://static.usrfiles.com/ugd/5b9a87_00f6f9229fed43a5864f97fec8670d11.pdf
    • https://static.usrfiles.com/ugd/ef7b09_977215f2c4e14dbcb4a902658264a1f9.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_bb33220028a44259945a613abb200e38.pdf
    • https://static.usrfiles.com/ugd/b8c837_28659cd01f1f4b75b434e49e3ee1b8be.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_off00006043.bin
c950b7f56d125b87832c58982c5c5d3471d5dc74ccbb89f3e4b4b908167fa3a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6043 5236 bytes
font_01_sfnt_off000071fb.bin
9cbd6a4dc4fd5b4b5017b7a50a0331a30d06c3c19577e142ba0972abdea85f29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71FB 10196 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.