Malicious PDF — malware analysis report

Static analysis result for SHA-256 86f7070a42a614c3…

MALICIOUS

PDF

52.6 KB Created: 2020-08-31 22:32:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e31c56edfbb227c6188ce2d3817d4ffa SHA-1: 4a04c9ba7e82193d0b07bde8a42e555060c279da SHA-256: 86f7070a42a614c3237e620356ef4cebeb01a612b0ef4aa7ee4b3101df7c17e6
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', and another for an advance-fee scam lure. The document body also contains this URL and numerous other PDF links, suggesting a link farm designed to obscure the malicious destination. The primary malicious URL is 'https://ttraff.com/wix?keyword=c+cast+template+type'.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=c+cast+template+type
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/cc03df_32a286bb63f44c85b6700d38c7330b24.pdf
    • https://static.usrfiles.com/ugd/5926b4_00d80c94d4b0454191b89aafdfc8bb58.pdf
    • https://static.usrfiles.com/ugd/a43ec6_21dfd1d3cef14e35a51cd4ba2c9fcf3a.pdf
    • https://static.usrfiles.com/ugd/b8c837_b89d1339c7be4540bef989657ddeba12.pdf
    • https://static.usrfiles.com/ugd/1c90dc_c69dc1af703e44d08fe4e091da8488c5.pdf
    • https://static.usrfiles.com/ugd/b8c837_6b7033b76afb4be58cc8b6af50ca52f8.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/zowemelusekibonurizuxigul.pdf
    • https://cdn.shopify.com/s/files/1/0440/3612/8933/files/avanza_2011_manual_olx.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9460/files/apush_period_1_and_2_test.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/91762140229.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/lezowolebopopomutum.pdf
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/wifomokebi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/anaximenes_philosophy.pdf
    • https://cdn.shopify.com/s/files/1/0430/5197/4818/files/2011_hyundai_sonata_manual_start.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d85.bin
155b917a862e30c14753824934a544c85bea45e4ffda85c0fec8239b8cd1b277		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D85 4632 bytes
font_01_sfnt_off00008d4f.bin
b2aef05cafb6eddb5d16d56b69fc082f2cdb9df44df78ec26bcee14e467fb72a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D4F 13236 bytes
font_02_sfnt_off0000b7ca.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7CA 4324 bytes

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