Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6ea082ec8220a3…

MALICIOUS

PDF

33.7 KB Created: 2020-08-01 05:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a880cb8c766989c520a09237840ef01 SHA-1: 6db6dc47853a8a234c3950f5caa0b28e3d55a27b SHA-256: 6b6ea082ec8220a3657d1c6970891b6404cc45faa8752676a44ae3364a65c012
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, likely as part of a phishing or scam campaign. The document body text and embedded links suggest a lure to download content, with the primary malicious URL being ttraff.ru. The presence of numerous PDF links, many pointing to Shopify, indicates a link farm designed to distribute malicious 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.ru/pify?keyword=download+john+wick+2+1080p
    • http://files.uscmtr.com/uploads/1/3/1/6/131637043/zajulikek_ropuke_rugedavo_zevubi.pdf
    • http://files.masshurricanes.com/uploads/1/3/0/8/130874474/0dce5f19ce2.pdf
    • http://files.croissantandcovenice.com/uploads/1/3/1/0/131070336/fuzozonesira_dokejabikimuwo_xavixubobososa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/sezig.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4099/files/begifulebudavanakujivu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4566/5433/files/kimuboxobemanokezalesopa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/vawatidufako.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/18723539817.pdf
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/9718135965.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71135401618.pdf
    • https://cdn.shopify.com/s/files/1/0438/3706/3328/files/41304630861.pdf
    • https://cdn.shopify.com/s/files/1/0440/4147/0117/files/terakezased.pdf
    • https://cdn.shopify.com/s/files/1/0433/1087/4777/files/ximipebasuwim.pdf
    • https://cdn.shopify.com/s/files/1/0432/1175/1579/files/46318004446.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_off000045a9.bin
acd219b4f75f6ee55c080d219c0d1eb38b31fa5a68c6ab7b1663a7b612720b71
pdf-font-stream PDF embedded font (sfnt) at offset 0x45A9 5636 bytes
font_01_sfnt_off000058fc.bin
8aa56af76c2bbf4288d44759d1c3c4b8bba692f7fcaaefbd4ed1dffda61e0f70
pdf-font-stream PDF embedded font (sfnt) at offset 0x58FC 9768 bytes