Malicious PDF — malware analysis report

Static analysis result for SHA-256 6414d535a01c91af…

MALICIOUS

PDF

64.4 KB Created: 2020-08-31 06:26:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9577b2b7495798542fdc59e5a478e2f2 SHA-1: e0d4ba479c7ab15cfa8e4c1ad484bd4917ce94f2 SHA-256: 6414d535a01c91afa0830caa368dd9fa6f74a422b208483994b5b968dab8ecdf
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.club'. This URL is embedded within the document body, suggesting a lure to a phishing or malware distribution site. The heuristic 'SE_PAYMENT_REDIRECT_LURE' further indicates a business-email-compromise pattern, aiming to trick users into believing there are new banking instructions. While no scripts were extracted, the presence of malicious links and the lure pattern strongly suggest a phishing or redirection attack.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.club/wix?keyword=the+laws+of+attraction
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/c618e9_99a1745666794366b92d048a9d2ef465.pdf
    • https://static.usrfiles.com/ugd/b8c837_128d2447e7e54244b1d2e2b62307664e.pdf
    • https://static.usrfiles.com/ugd/63022f_ca7a5b0498a24634ad5fc34ccb17fbd0.pdf
    • https://static.usrfiles.com/ugd/49be48_e4a9d417c6df40a8b2ed14dfe92c2305.pdf
    • https://static.usrfiles.com/ugd/b8c837_cfc12aed518b47ab9eba0c7f889ab643.pdf
    • https://static.usrfiles.com/ugd/b8c837_bead14dc75514ce09023503be16ca3a7.pdf
    • https://static.usrfiles.com/ugd/cfa91a_e25dcb897dac4264a8005d9ec02a2682.pdf
    • https://static.usrfiles.com/ugd/b8c837_7b4e67165c1340dc9c99ea615bc83a72.pdf
    • https://cdn.shopify.com/s/files/1/0431/1701/9292/files/dazutiwodemibalaxud.pdf
    • https://cdn.shopify.com/s/files/1/0436/7053/6345/files/92256197458.pdf
    • https://cdn.shopify.com/s/files/1/0428/5281/0911/files/3606485013.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_off0000b354.bin
44e2cb2cc7407736f3c2a9e9a0d65b4fcb3dc15851c19b3c03d574a80e39c272
pdf-font-stream PDF embedded font (sfnt) at offset 0xB354 5012 bytes
font_01_sfnt_off0000c469.bin
6457dd9d40c0dfb65709b773fd368aff0f4aec9c690d1dcc9a74a5e5ca866e1f
pdf-font-stream PDF embedded font (sfnt) at offset 0xC469 16188 bytes