Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6329b7abdbea1b9…

MALICIOUS

PDF

40.6 KB Created: 2020-08-21 05:39:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e62f1ececd1416b7c16dd5b047ffec9f SHA-1: ad6493ff403dcb6372f5321b9fbd26350edeee48 SHA-256: d6329b7abdbea1b9f904609b85530430d0d1995ea5c7ccf4ce2e95c676a762c6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, disguised with a search query for "Jodha akbar serial video songs mp4". The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.

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=jodha+akbar+serial+video+songs++mp4
    • http://gumonubi.qwestproducer.com/uploads/1/3/0/7/130776457/5370969.pdf
    • http://files.powerandlightdesigns.com/uploads/1/3/1/0/131069970/d78d51db7b577a.pdf
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/whatsapp_blockierung_aufheben_android.pdf
    • https://cdn.shopify.com/s/files/1/0432/8921/5129/files/redubuwosewazuputij.pdf
    • https://cdn.shopify.com/s/files/1/0438/4705/7568/files/zifajedajite.pdf
    • https://cdn.shopify.com/s/files/1/0437/0635/1771/files/artificial_intelligence_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8374/9783/files/wikupibupotogexusagajamat.pdf
    • https://cdn.shopify.com/s/files/1/0433/9951/2231/files/kofopeduwukegiwerufodobet.pdf
    • https://cdn.shopify.com/s/files/1/0446/4757/9811/files/78587855234.pdf
    • https://cdn.shopify.com/s/files/1/0440/0467/1646/files/kaxituvapirebuzesiwevufim.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000426a.bin
2c8015760674a9bc806bd10d7b5603e4cf7574bdad91cc87c36f2cb3aee79e49
pdf-font-stream PDF embedded font (sfnt) at offset 0x426A 5712 bytes
font_01_sfnt_off000055bb.bin
39b4896b5baf97baf5ad820f646af90a7de3d0e7622d9681e0cb3cc05740c8f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x55BB 9504 bytes
font_02_sfnt_off0000767f.bin
96ab3042575e6db92b7bad1aac42ed8095504d59665b3326cf7857e97d54a14f
pdf-font-stream PDF embedded font (sfnt) at offset 0x767F 18776 bytes