Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0030c5cdc0e476…

MALICIOUS

PDF

47.7 KB Created: 2020-08-30 11:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bad66e2d448dccfef49634f87e776d48 SHA-1: 8abf50e6b7270e076014a2f583eff2b7a8c2a0ad SHA-256: 7a0030c5cdc0e4761468362021f5df47773e8d96130a4ce8306c553299d3819f
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to further malicious content. The document also features a large number of links to other PDFs hosted on Shopify and static hosting services, suggesting a link farm or SEO poisoning tactic. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious redirection 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=lady+macbeth+influence+on+macbeth+quotes
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/5011/4965/files/17339174048.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotedijulukamani.pdf
    • https://cdn.shopify.com/s/files/1/0434/7058/6016/files/fufatezodokugililelupa.pdf
    • https://static.usrfiles.com/ugd/daca0d_5218cb2cf95044d99384c7c997afec75.pdf
    • https://static.usrfiles.com/ugd/3e9e83_021b8fe6961e4c29a10378e2a03ed1e5.pdf
    • https://static.usrfiles.com/ugd/a01749_e647a1bde1274ffbbe5d96ba3d5045d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_22b63078c113456380a9961e3a46eb28.pdf
    • https://static.usrfiles.com/ugd/299074_fbd2621881424e3da317461e4f66decd.pdf
    • https://static.usrfiles.com/ugd/b8c837_901166200ca84c9492832501ae1e2cc4.pdf
    • https://cdn.shopify.com/s/files/1/0457/8276/1628/files/single_fitted_flannelette_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0454/2867/0620/files/ruwodibad.pdf
    • https://cdn.shopify.com/s/files/1/0434/2736/5031/files/xewuxetitawedisexelon.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_off00006e6c.bin
30388d9cd7938f133e960a58ab70c31156f9d5aa8ec94fdad73532a2ba588667
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6C 5356 bytes
font_01_sfnt_off00008081.bin
bda22dfabcd7cd821f46ecd686066136f4f5cdebde5aabe3e8c038c5b1dacc35
pdf-font-stream PDF embedded font (sfnt) at offset 0x8081 10440 bytes
font_02_sfnt_off0000a3e9.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3E9 4324 bytes