Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3388fad7d2f7952…

MALICIOUS

PDF

53.5 KB Created: 2020-08-03 13:58:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34d192a0fa3e15a292ebd62e74b6b33b SHA-1: 52d5516081e96767c6c4ad070c81de44a5feaa4b SHA-256: a3388fad7d2f7952b1eeaa7ff5b26568a1e42652eab7a5a09e439e05a2a237b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body, though malformed, contains text related to a proposal and a URL that is also present in the heuristics, suggesting the user is meant to click this link. The presence of multiple Shopify links, while benign, are likely used to mask the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.com/pify?keyword=contoh+proposal+akuntansi+perpajakan+pdf In PDF document text
    • http://files.cityofdanville.org/uploads/1/3/0/7/130775002/nugexazoweka_xuwuveraz_monewev.pdfIn PDF document text
    • http://files.apg-ga.hk/uploads/1/3/1/4/131412858/2698761.pdfIn PDF document text
    • http://files.localmaximum.org/uploads/1/3/1/3/131398076/mikowuwatogo_ramuzipulim_xapiki_sufol.pdfIn PDF document text
    • http://files.jacobhughesphotography.com/uploads/1/3/2/6/132696018/kedoxak_ruzafaluzazu_jerud.pdfIn PDF document text
    • http://files.jessicamaan.com/uploads/1/3/1/4/131438216/7734afa716.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8543/6830/files/55593349166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/75076242444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/how_to_reset_a_nintendo_switch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/bevozitegejutivazujeruxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9850/3336/files/zexogijapin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0717/9941/files/rupizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/jevezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8788/8545/files/xusugeriloguxuxitodatan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0762/2824/files/78485238466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/62892523252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xasaxikopakepiditewevumub.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78DC 5172 bytes
SHA-256: 87d398642d585e962a16bd3c11f05be892e0bcb3e165abf7f2d61b93f6de45a3
font_01_sfnt_off00008a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A68 16124 bytes
SHA-256: eab987cac0296c562775efdc020670f030aa05a7c0ed4222a2c9340ffebed0fd
font_02_sfnt_off0000ba72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA72 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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