Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba380d92b324b7f6…

MALICIOUS

PDF

56.9 KB Created: 2020-08-20 19:41:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b654290790cc5a22063975fdc648fbcc SHA-1: ffed63f47316545c98bd680dedf19ea2f4e50c9b SHA-256: ba380d92b324b7f6e6f500cea077683000c45323aed1b1ac926d127bf5678588
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to known malicious infrastructure. The embedded URL 'https://ttraff.cc/pify?keyword=edmentum+answer+key+world+history' is the primary indicator of this malicious redirection. The PDF also exhibits characteristics of a link farm, with numerous external links, predominantly hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute further malicious content.

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/pify?keyword=edmentum+answer+key+world+history
    • http://files.waltonfamilymoving.com/uploads/1/3/0/9/130969175/8496699.pdf
    • http://files.ianglading.com/uploads/1/3/2/3/132303320/0af1885a43feb36.pdf
    • http://files.redeemernewton.com/uploads/1/3/0/7/130775950/1763599.pdf
    • https://cdn.shopify.com/s/files/1/0428/5235/2159/files/47825334321.pdf
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/murololakejidoxikomuxad.pdf
    • https://cdn.shopify.com/s/files/1/0434/1818/9980/files/66289544575.pdf
    • https://cdn.shopify.com/s/files/1/0431/9825/1165/files/rodavozupiripena.pdf
    • https://cdn.shopify.com/s/files/1/0434/0963/7533/files/22023417084.pdf
    • https://cdn.shopify.com/s/files/1/0435/3448/3605/files/dufamuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/2208/1448/files/zilazesakefejorusifopav.pdf
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/population_variance_formula.pdf
    • https://cdn.shopify.com/s/files/1/0452/2662/3133/files/1386943154.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/26462007559.pdf
    • https://cdn.shopify.com/s/files/1/0435/3789/1477/files/minecraft_ww2_server.pdf
    • https://cdn.shopify.com/s/files/1/0431/7147/9713/files/95259148832.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3645/files/cracker_barrel_pecan_pancakes_nutritional_information.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009189.bin
eed406cf77a6ad960e68f72dcd305cc53e8bb9f86b238472c23b42e8259faf71
pdf-font-stream PDF embedded font (sfnt) at offset 0x9189 5160 bytes
font_01_sfnt_off0000a2f4.bin
43818e99aeca2676f84e78370038f64d9e3a5952759ada68e30af6cc8c9ed330
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F4 11032 bytes
font_02_sfnt_off0000c869.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xC869 4324 bytes