Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0595e9e144a0b7c…

MALICIOUS

PDF

50.0 KB Created: 2020-08-06 09:00:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc0f1b52f97067e504d3ff5dcb90988c SHA-1: 2fc2a372c8de96e1d2473ff1c3c9c63cefaa1f24 SHA-256: f0595e9e144a0b7c1c935ca28bfd2203bdd9117f855347ab0cf84fa29c8e14a0
152 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. This suggests a phishing or scam attempt, likely using the document content as a lure. The ML classifier strongly supports the malicious verdict. No scripts were extracted, limiting the analysis of specific execution behaviors.

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=terapia+aceptacion+y+compromiso+pdf
    • http://files.multidis.org/uploads/1/3/2/8/132815004/xuwezapavofis-jurut-zurun.pdf
    • http://files.livinglovingpraying.com/uploads/1/3/2/3/132303117/tigepetevusibi.pdf
    • http://zaduni.gaslampgiftgallery.com/uploads/1/3/0/8/130874197/a2d9255e324a08.pdf
    • http://files.montrealhighlandgames.com/uploads/1/3/0/8/130874338/20442996efed.pdf
    • http://files.jbandersenart.com/uploads/1/3/0/8/130874633/3202585.pdf
    • http://files.jbandersenart.com/uploads/1/3
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/kajakuleti.pdf
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/82450084854.pdf
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/ubuntu_upgrade_to_15._04.pdf
    • https://cdn.shopify.com/s/files/1/0431/6938/2568/files/mepijagamudelesanipumubif.pdf
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/13603013898.pdf
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/ejercicios_de_nmeros_primos_y_compuestos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27150836515.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/76599899400.pdf
    • https://cdn.shopify.com/s/files/1/0437/3820/2273/files/93704592559.pdf
    • https://cdn.shopify.com/s/files/1/0429/5072/1699/files/4767676947.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/lopakakirirakidusobe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9147/6133/files/xunijinujovega.pdf
    • https://cdn.shopify.com/s/files/1/0434/2556/2785/files/xuleviguto.pdf
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/14855038225.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008212.bin
c3a4173ed32fcc893e0134ba8821ed8bf6e1c4df5b807eac30dd2018ef9a7b88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8212 5320 bytes
font_01_sfnt_off0000941d.bin
60f7d6a51c6be8217524aa744ac0af8214379b20bc47ae81c2fc78c082b8e6e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x941D 11316 bytes

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