Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c6dbdeca296dd7…

MALICIOUS

PDF

39.0 KB Created: 2020-09-08 21:50:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00b33b543d5632e681f672e00584385e SHA-1: 08444a541fdee198a5062eee4f82afa32981d9bd SHA-256: 69c6dbdeca296dd73236a4ca2da6850a6875fba7b0024167808c03c005476929
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a link farm and a redirector URL, indicating a phishing or malicious content distribution attempt. The embedded URL `https://ttraff.link/wix?keyword=happy+wheels+demo` is flagged as malicious, suggesting it leads to harmful content. The document body, though heavily obfuscated, contains this URL and references to other PDF files, reinforcing the link farm tactic.

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.link/wix?keyword=happy+wheels+demo
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/4696/8215/files/bushnell_binoculars_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/biodata_format_for_marriage_for_boy_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/affidavit_of_residence_form_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/7391/9393/files/xabanivor.pdf
    • https://static.usrfiles.com/ugd/7f16bd_6f6973d064b0488aae32b55466351d9f.pdf
    • https://static.usrfiles.com/ugd/b8c837_0cf667b027d048ed83fedcfa84e3f7d2.pdf
    • https://cdn.shopify.com/s/files/1/0437/0700/7127/files/35061596713.pdf
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/37532634809.pdf
    • https://cdn.shopify.com/s/files/1/0436/9268/7513/files/bitmap_converter_to.pdf
    • https://cdn.shopify.com/s/files/1/0436/0614/7229/files/mulozo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/border_song_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/capacity_building_strategies.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_off00005ae5.bin
75be4bc5751875c1de727c91da4b8f37fcb167e7de106f0b49c6d6b70684d3d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE5 5256 bytes
font_01_sfnt_off00006cb7.bin
1de2f58d612fb3ebaaddff257c343bdbb4518cecf27b16b6262606dfd615f833
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB7 10408 bytes