Malicious PDF — malware analysis report

Static analysis result for SHA-256 000d5547aa825556…

MALICIOUS

PDF

38.1 KB Created: 2020-08-05 18:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ebef32a758043e4f3d7b55833565e7e SHA-1: e07c66a1fbb1ac26b9b64ca183dbf3febc2ec20d SHA-256: 000d5547aa825556985946075c0530855b4d917aa42be6cea67bf8b8d25fd2a5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a redirector service (ttraff.cc) which is flagged as malicious. This redirector likely leads to a malicious payload hosted on one of the many Shopify domains embedded within the document. The document body itself is heavily obfuscated but contains references to the malicious redirector URL and numerous Shopify links, suggesting a link farm or download lure tactic.

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.cc/pify?keyword=kundalini+reiki+pdf+download
    • http://files.waterfrontkeuka.com/uploads/1/3/1/4/131453067/jamox.pdf
    • http://files.sustainable-movement.com/uploads/1/3/2/6/132682778/aa3d8c3f6196a1f.pdf
    • http://files.collegeparkchorale.org/uploads/1/3/1/3/131380786/zurobofugowudepo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/gevawasijupojam.pdf
    • https://cdn.shopify.com/s/files/1/0434/9489/9864/files/zenezapelewiwekoxajujake.pdf
    • https://cdn.shopify.com/s/files/1/0440/4684/4054/files/42797996179.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6444/files/kodazulokanajasitiwoguw.pdf
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/fiboxabuzo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6605/5063/files/wosinexex.pdf
    • https://cdn.shopify.com/s/files/1/0432/6581/8782/files/nibupobuvebexi.pdf
    • https://cdn.shopify.com/s/files/1/0436/7102/7865/files/takiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/85795176081.pdf
    • https://cdn.shopify.com/s/files/1/0436/3039/5552/files/40596961731.pdf
    • https://cdn.shopify.com/s/files/1/0430/8579/1383/files/85049135970.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_off00005891.bin
b5f68c1ab2cb7e994c1193c874644cda30aaf4791bb4243a5a53ac2f40b7b4d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5891 4984 bytes
font_01_sfnt_off000069a4.bin
e613c53489840734d1de40be09c83165c146457baebd45ac4030641c38109f24
pdf-font-stream PDF embedded font (sfnt) at offset 0x69A4 9916 bytes