Malicious PDF — malware analysis report

Static analysis result for SHA-256 76a046a6e19dcd33…

MALICIOUS

PDF

53.1 KB Created: 2020-09-03 07:10:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dcb0e321fc3622d8545f34c595787124 SHA-1: d1c99fa98941a2717664d39ee32e6c0a2fee7f0a SHA-256: 76a046a6e19dcd338acc5886de3687a3799de29194c12bc116a7c9c828291914
154 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.me/wix?keyword=fosse+verdon+review+hollywood+reporter, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a tactic to distribute further malicious content or phishing pages. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.me/wix?keyword=fosse+verdon+review+hollywood+reporter
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_81e9a96334a448a7875120ca777d5510.pdf
    • https://static.usrfiles.com/ugd/e4ee87_1666b2419ac246abb01f86a9996811f6.pdf
    • https://static.usrfiles.com/ugd/a771bd_2a3e96baf2d04479b6aea897ca25bdfa.pdf
    • https://static.usrfiles.com/ugd/1a89c8_99c9cb95b4fd4192bfcf35e8c6ffc3e4.pdf
    • https://static.usrfiles.com/ugd/aec2ea_2ff7dc89d6d543b99d24278dbf60fd73.pdf
    • https://static.usrfiles.com/ugd/f65518_e9cf208e5a244c93803bfdaf9e02028b.pdf
    • https://static.usrfiles.com/ugd/ca300b_580be9b651e94a7785cf6dde4b6eb10b.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_a1e5c86cdc4a462e97ff1e67adcda014.pdf
    • https://static.usrfiles.com/ugd/de60da_39e5b89f9710448989f2cf814b9cc3c3.pdf
    • https://static.usrfiles.com/ugd/1f2646_6622ff8bae424076be242ef1867ecf1b.pdf
    • https://cdn.shopify.com/s/files/1/0440/4704/0662/files/94086702970.pdf
    • https://cdn.shopify.com/s/files/1/0438/1720/5920/files/puzenuvovoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2513/6796/files/kabiwoguxoxojatagelik.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_off0000918b.bin
5175c31a5dc333e399545cdc375ee617ddea48cf1aa3eb9acc28225ee7ed857b
pdf-font-stream PDF embedded font (sfnt) at offset 0x918B 5044 bytes
font_01_sfnt_off0000a2cd.bin
0ae62cc27ea98daeb40d11176e503b37b625e8cc7d4520c369dd4aa6decdcc8b
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2CD 10664 bytes