Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b4459e490833a36…

MALICIOUS

PDF

42.1 KB Created: 2020-08-01 06:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30280e7d6b3e5a52d322caa3d4a749ae SHA-1: 1c31879a19275cc22b2cbfd7a97dd34822742d26 SHA-256: 5b4459e490833a36b9fd66354fc33eb40e299bc9e4a4062185130219eeab6e87
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to what appears to be a link farm hosted on Shopify, with one critical link identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=magic+weapon+ds3', which is flagged as malicious. This suggests the document's primary purpose is to redirect users to malicious infrastructure.

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=magic+weapon+ds3
    • http://files.musicalcolts.com/uploads/1/3/0/7/130776607/1175993.pdf
    • http://files.mlmedicalsupplies.com/uploads/1/3/1/8/131857114/1826782.pdf
    • http://files.obsidianliving.co.uk/uploads/1/3/0/7/130775747/jojatipetilava.pdf
    • http://files.adventuregirlsnj.com/uploads/1/3/1/6/131607063/3c9881.pdf
    • http://files.saikmusic.org/uploads/1/3/2/7/132740415/67c8893d65fe7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/48521820441.pdf
    • https://cdn.shopify.com/s/files/1/0432/3934/2248/files/vipevonelizekigabopukis.pdf
    • https://cdn.shopify.com/s/files/1/0432/3177/2835/files/23822352244.pdf
    • https://cdn.shopify.com/s/files/1/0441/0834/9592/files/gebabidod.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/78162337647.pdf
    • https://cdn.shopify.com/s/files/1/0434/3827/6760/files/kalopesagunivatosamid.pdf
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/degilugasowuleworuneva.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/lunigunudifiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/9779/2420/files/mokemawodifedawejusod.pdf
    • https://cdn.shopify.com/s/files/1/0432/5353/0788/files/96570045694.pdf
    • https://cdn.shopify.com/s/files/1/0431/5620/9819/files/46123595471.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/ralavudisekigolajijuvilo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/75405884983.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_off000065e8.bin
d835206c53ce454789c951579305117f23e2d7701dede9beae085466102559b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65E8 5376 bytes
font_01_sfnt_off0000786a.bin
7736d5fbf4e200d08113eec76e7d717e23114ce4004b7013da980113511f0a39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786A 10292 bytes

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