Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e12ff317493e934…

MALICIOUS

PDF

44.0 KB Created: 2020-08-30 18:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4db612e8979ede6ddc073552a023555e SHA-1: eecbba76e996599e44b4210f72e2e4d97c08adae SHA-256: 6e12ff317493e93472db4fc5f5632429d8a80431e7b422a0bb7d1dcfea20b7f3
154 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.com/wix?keyword=gta+5+lcn+stock+market+guide', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains references to this URL and other Shopify links, suggesting a link farm or content-luring tactic. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector points to a phishing or scam attempt.

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=gta+5+lcn+stock+market+guide
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/4908/2264/files/kadijomosomaxesikuromebif.pdf
    • https://cdn.shopify.com/s/files/1/0436/0732/6882/files/1811075697.pdf
    • https://cdn.shopify.com/s/files/1/0430/9506/4730/files/msbte_academic_calendar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/8443/2031/files/jibunutapovubulewu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5339/1765/files/voulez_vous_danser_grand_mre_paroles.pdf
    • https://static.usrfiles.com/ugd/b8c837_d6be4d119454488385e544be8e0be150.pdf
    • https://static.usrfiles.com/ugd/3aca14_32159ecb4e7c46c5af74987e62c008e9.pdf
    • https://static.usrfiles.com/ugd/10e3af_7f109e5d758a4d8f9a22643d8bdf7549.pdf
    • https://cdn.shopify.com/s/files/1/0438/6249/1286/files/52665447602.pdf
    • https://cdn.shopify.com/s/files/1/0448/2826/2560/files/chemistry_lab_report_book.pdf
    • https://cdn.shopify.com/s/files/1/0427/9376/2975/files/chrome_addons_apk.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/chunk_loader_minecraft_1._14.pdf
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/numurudijebi.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_off00006d05.bin
b1a95cd182172a3496b62d14c5a0b34af3066862446709d52b4700ea56218a89
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D05 5480 bytes
font_01_sfnt_off00007f9c.bin
01baddbe576409bd443d1f6f86f2e4f4378eb06702fd9e97c54e27f5fa1781a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9C 10444 bytes