Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00c459dc931b20f…

MALICIOUS

PDF

40.7 KB Created: 2020-08-02 05:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e6e00adadeddb79de09160e12603d173 SHA-1: 6a8c63a10ce24e7f04ad1941eb719fa738277472 SHA-256: f00c459dc931b20f525a056edf7985cc77fde3c0073693e9e36cd8011db570f8
154 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, forming a link farm. One of these links, 'https://ttraff.com/pify?keyword=magnavox+universal+remote', is identified as a malicious redirector. The presence of numerous links, many pointing to Shopify domains, suggests an attempt to obscure the final malicious destination and potentially engage in SEO poisoning or phishing campaigns. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.com/pify?keyword=magnavox+universal+remote
    • http://files.kennedypickering.com/uploads/1/3/2/6/132696111/tibeno.pdf
    • http://files.connectingnicolletcounty.com/uploads/1/3/2/3/132303269/4200823.pdf
    • http://files.cherrycitycloggers.com/uploads/1/3/0/8/130874332/folopazerukama-mafap-sodum-tadix.pdf
    • https://cdn.shopify.com/s/files/1/0429/0940/1254/files/42960506343.pdf
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/28342399287.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/jidutegaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15843942414.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/zowupibukepa.pdf
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/zebivadibopaveroduboxoki.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/wevitidefo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/xituvexegavefolim.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/68907051076.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_off0000612e.bin
52e39553c116e5d7084f7023d297aac8614ce6e021999f879230e037aa3066df
pdf-font-stream PDF embedded font (sfnt) at offset 0x612E 5140 bytes
font_01_sfnt_off000072ac.bin
ed949dca29c8b6f1c53d8433228300f6002ea75456253c77bf658488c53e30c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x72AC 10412 bytes