Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eee14bab61ef550…

MALICIOUS

PDF

48.6 KB Created: 2020-08-29 17:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11ee200c4fcbece363b01d4158074690 SHA-1: 3d7000e9186013ca38f6030570f248346de3c8c6 SHA-256: 0eee14bab61ef550ed43e29beb5fa45dc177a129c7dfdc3c35b44a87eb648128
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.cc). The document body, though heavily obfuscated, contains text related to 'kitchen recessed lighting design guide' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm and a malicious redirector indicates a likely attempt to drive traffic to malicious infrastructure.

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.cc/wix?keyword=kitchen+recessed+lighting+design+guide
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/4308/4705/files/4233884810.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/wisatogetaxeke.pdf
    • https://cdn.shopify.com/s/files/1/0430/8438/2357/files/92345259088.pdf
    • https://cdn.shopify.com/s/files/1/0462/9004/3040/files/driver_canoscan_lide_200_windows_xp.pdf
    • https://cdn.shopify.com/s/files/1/0433/7208/5406/files/60178680472.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/bulebefaboripamirapopasu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/boosting_in_machine_learning.pdf
    • https://static.usrfiles.com/ugd/b8c837_070ce2bf6836403db4bed0a752beced0.pdf
    • https://static.usrfiles.com/ugd/b8c837_32d85d3777a84cb6bf354a2aba95f4d7.pdf
    • https://static.usrfiles.com/ugd/b8c837_993db186f751429cb6ebaa06b521f5f5.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/gomasumarodixenurufilo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6851/2669/files/33677393892.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/carbon_footprint_calculator.pdf
    • https://cdn.shopify.com/s/files/1/0431/6620/4066/files/begulodavenonezugexuju.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c95.bin
ed437abeac18dab1c1b10d8390aa5127aebfc71b9fbff655939780fa743db3f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C95 4960 bytes
font_01_sfnt_off00008d62.bin
9f4771d6f3c1edd2a5a8f1e5dec12bc7cec482ae6ce1c313042d83d756613b76
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D62 12164 bytes