Malicious PDF — malware analysis report

Static analysis result for SHA-256 10e94c9840a0f397…

MALICIOUS

PDF

37.6 KB Created: 2020-08-26 04:46:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a5fac94ff11a9bbb1116a4fa39bd58e3 SHA-1: cc84dae01ce00fc931c523724462302cf9be85c7 SHA-256: 10e94c9840a0f39781923f3cdf4a96d9052161a816a04b359d4cea3ee6e6db5c
154 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector to malicious infrastructure, indicating a phishing or scam attempt. The embedded URL `https://ttraff.cc/pify?keyword=honda+outboard+serial+number+identification+year` is a critical finding, suggesting the document is designed to lead users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest malicious intent, likely related to a phishing lure.

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=honda+outboard+serial+number+identification+year
    • http://sagixu.delaneydrywall.com/uploads/1/3/1/6/131606346/mijikexizova_puvofamilagewop.pdf
    • http://jamisifa.brilliantheartpr.co/uploads/1/3/1/3/131380177/sododesumel_mejofelixod_zizoxatujo.pdf
    • http://files.aquazooextremepets.com/uploads/1/3/1/3/131379110/sowefojukisono-misiziwe-busafemofapula.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/5112/1820/files/89256953546.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0245/files/blockchain_revolution_don_tapscott.pdf
    • https://cdn.shopify.com/s/files/1/0432/5556/2398/files/imovie_trailer_storyboard_templates.pdf
    • https://cdn.shopify.com/s/files/1/0434/8782/1984/files/wiguponozatewagolotoxux.pdf
    • https://cdn.shopify.com/s/files/1/0437/3184/5271/files/sodunemoviseno.pdf
    • https://cdn.shopify.com/s/files/1/0431/3363/2661/files/rubofez.pdf
    • https://cdn.shopify.com/s/files/1/0428/3649/2444/files/sql_server_database_query_examples.pdf
    • https://cdn.shopify.com/s/files/1/0436/1424/0931/files/factores_bioticos_y_abioticos_de_un_ecosistema_acuatico.pdf
    • https://cdn.shopify.com/s/files/1/0437/2735/6056/files/moluzexozu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/55195319911.pdf
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/72031460327.pdf
    • https://cdn.shopify.com/s/files/1/0431/1993/5655/files/wexegamadukasefadi.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_off000053ed.bin
c94732fe245c5e407d69fd1a93c2033f03115d73ae8050baf9ee8541e1b46b41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53ED 5372 bytes
font_01_sfnt_off0000661d.bin
f7a735923f57abef961bb3e658b47eb7f747e07d54fa4c565b1c7be6d308e36f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x661D 10204 bytes

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