Malicious PDF — malware analysis report

Static analysis result for SHA-256 006cb8b908131351…

MALICIOUS

PDF

44.7 KB Created: 2020-09-01 05:17:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f4514ea85c2a74c718ec603fdd29dede SHA-1: baf0609b446e2a0a606b1b79209bc581efff674b SHA-256: 006cb8b908131351a137050e0b20ca5ce012e08ac90cb33f4686743dbbd123dc
162 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/wix?keyword=active+directory+lightweight+directory+services, which is also identified as a malicious redirector. The presence of numerous links suggests an attempt to drive traffic to malicious sites, likely for SEO poisoning or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=active+directory+lightweight+directory+services
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0465/5493/9542/files/41269025407.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5126/files/rabasakigawinajabagit.pdf
    • https://cdn.shopify.com/s/files/1/0433/8538/9212/files/chicharrones_bokados_informacion_nutricional.pdf
    • https://cdn.shopify.com/s/files/1/0433/6248/4383/files/ben_10_movie_2018.pdf
    • https://cdn.shopify.com/s/files/1/0461/7076/7512/files/sopikovubew.pdf
    • https://cdn.shopify.com/s/files/1/0431/5552/1695/files/pimezofufivepavexama.pdf
    • https://static.usrfiles.com/ugd/61f964_2d7bf5bbceaa4140a57dac612c774c83.pdf
    • https://static.usrfiles.com/ugd/5ad03d_bae14896615e4ff2af8da9f3e345f6c3.pdf
    • https://static.usrfiles.com/ugd/fd7405_df891e7f137d479cac3fac3583c9338f.pdf
    • https://static.usrfiles.com/ugd/89363e_f28d511863ba42369415ae88a79a2395.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/38514579569.pdf
    • https://cdn.shopify.com/s/files/1/0430/0842/6147/files/din_fastener_standards.pdf
    • https://cdn.shopify.com/s/files/1/0429/7362/6524/files/gafawazufefisamumawid.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_off00007047.bin
744d80f4de5d558500ad9bb108f4297cbcc2b23a66203d7e1292944b6fc70c41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7047 5236 bytes
font_01_sfnt_off00008232.bin
eec792a9c23dd3900b6a44cf38a91a44aa14ee1a147a211068e44b0ebf918145		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8232 10396 bytes

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