Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1710a8242353514…

MALICIOUS

PDF

43.3 KB Created: 2020-08-31 01:29:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c64ab202eb5cf99805d3e641f139fe17 SHA-1: e6d0b9283c83c47de503c7b1c4f03bc945b1199a SHA-256: d1710a82423535144d7a58e1c5cd4596360532f544ab772be47eb9d9b33b61c7
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised with a search query related to 'total eclipse detox reviews'. This suggests a phishing or scam attempt. The PDF also functions as a link farm, pointing to numerous other PDFs, likely for SEO manipulation or to distribute further malicious content. The ML classifier strongly flagged this PDF as malicious.

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/wix?keyword=total+eclipse+detox+reviews
    • https://static.usrfiles.com/ugd/34e21e_77b2a87efc084de094aca2ae07c40ee9.pdf
    • https://static.usrfiles.com/ugd/32acb1_35b84de7708642dabb5add18c7207cd2.pdf
    • https://static.usrfiles.com/ugd/b8c837_87458f3efb3744c78231bbfa0f50a625.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c67f7cb46ec4db4bb313ee2c5d72f4c.pdf
    • https://static.usrfiles.com/ugd/c33cdb_10dde018bfd0427ca74bc76ca3432bb6.pdf
    • https://cdn.shopify.com/s/files/1/0436/4930/2693/files/inverse_trig_function_worksheet_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/9046/0315/files/sheet_street_duvet_covers_online_shopping.pdf
    • https://cdn.shopify.com/s/files/1/0429/2080/4511/files/java_using_eclipse_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/duvalodimutilinabu.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_e4b5b05521cf49fc82670fd1a8cc1cd0.pdf
    • https://static.usrfiles.com/ugd/e5a943_e4b42509ee5142b7ac94b756820ed391.pdf
    • https://static.usrfiles.com/ugd/b8c837_a84918c81c784b88a640d33f38f09a31.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb6552309b7e46e9aa6fbf016a6e1a8d.pdf
    • https://static.usrfiles.com/ugd/921909_28baf9b49bef4fa0bc3918bec0354ec8.pdf
    • https://static.usrfiles.com/ugd/b8c837_3003a8fbfa364b62989e451aa61fb442.pdf
    • https://static.usrfiles.com/ugd/4b7290_08f866b44a9041d486633e3f7b189d2f.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_off000069f9.bin
63bcd304f4e85907dd86e98d269c57fa850320285d1d13c947fd4dfa6e4b711f
pdf-font-stream PDF embedded font (sfnt) at offset 0x69F9 5236 bytes
font_01_sfnt_off00007bed.bin
ded75bed141b241f035c238e61dc3275ef5fb1384ccc9b044f27219f5b8cddfa
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BED 10676 bytes