Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f95dd53dd238c7b…

MALICIOUS

PDF

45.3 KB Created: 2020-07-25 18:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 110ee5937dfa6f698083b146b459f18e SHA-1: 77a477b217c0960794e85b81de0577e3baf638dd SHA-256: 6f95dd53dd238c7b8071d2c04d3bfbd5968ca460f32299f1abecd90f87bd91ba
154 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm. The embedded links, such as 'https://ttraff.com/pify?keyword=butterfly+effect++video', are flagged as malicious redirectors. The document also contains a large number of external PDF links, suggesting a link farm strategy. While no scripts were extracted, the PDF structure and embedded links strongly suggest an attempt to lure users to malicious sites.

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/pify?keyword=butterfly+effect++video
    • http://files.vintex64.com/uploads/1/3/1/4/131406714/1811960.pdf
    • http://files.gregheckmann.com/uploads/1/3/0/7/130776142/ponun_puzegani_bopakixokaja.pdf
    • http://files.caterpillarspirit.com/uploads/1/3/0/7/130775897/kiloxuserogen.pdf
    • http://files.fairwaycommunity.com/uploads/1/3/1/4/131409884/mizezusejenuxodaxol.pdf
    • http://files.cocrimeanalysis.org/uploads/1/3/0/8/130874437/0ff238c6a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/basugogigarerebid.pdf
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/narijejilelejusugokonowu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1765/8780/files/6685031213.pdf
    • https://cdn.shopify.com/s/files/1/0433/6749/7884/files/dawozitoxawerezanavetoxup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gizuvesadumewagetikuxumut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vebamuwonodivori.pdf
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/fovodor.pdf
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/pogafopufetedik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62386903812.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/xirutitapevesiwopegigub.pdf
    • https://cdn.shopify.com/s/files/1/0431/8950/2111/files/30426139042.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/zokifo.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_off00007504.bin
457d4676f9f705407dfbd727f9be70d9f96bf5c78c877eeab0bd8839ea1af9db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7504 4612 bytes
font_01_sfnt_off000084d9.bin
f63909edde625632bd8052d1cb7e4bf2586d8373b8da14d8106280c8168eff21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84D9 10308 bytes

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